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TriRig BTA Riser - Is this Proprietary to TriRig bikes?
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Hi All,

I'm looking for solutions to raise 2 bottles between my arms (back to back) and I'm looking at the TriRig BTA Riser. Is this proprietary to TriRig bikes, or would they work on other setups? I have a Trek Speed Concept, which has mounts for a BTA bottle.

Though the TriRig says "Base Mounting Bolts are 42mm apart" which isn't to my measurements a standard bottle mounting pacing. Unless I'm missing something, it would seem that you can't use this on a standard bottle setup - am I correct in assuming this?

If so, this sucks since this is (to my knowledge) the one metal/alloy solution in a world of plastic BTA solutions.


https://tririg.com/products/bta-riser
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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I ordered one without doing my research, but it looks like it'll work for a standard bottle mount, I've only laid it out as I haven't found my bracket to actually get everything setup yet.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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you can make it work with the new SC. The spacing on the small side of the riser doesn't make holes on the bottle cage exactly (depending on the cage) you can make it work with some washers or fabricate something. Example: using a xlab gorilla cage the mount hole lines up in the big opening in the middle of cage. I had some random hardware laying around to make it work.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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I was able to get it installed on my E-119 Tri+. Definitely takes some different screws than included but it works. I apologize for the dirt and the awkwardly sized pictures.

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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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I ordered one - but I didn't catch the 42mm spacing and had to improvise.

IG: NCGregory8778
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Savage8778] [ In reply to ]
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Yea, mine's "upside down" essentially. I'll probably get a chance this weekend if the weather permits to put a bottle in it and see if it's stable enough like this.

TriRig makes great stuff, it's too bad they seem to be trying to keep this proprietary.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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I installed one on my Gen 2 Speedconcept (with the bontrager bridge/bracket) using an X-Lab cage optimizer kit I had laying around and some MacGyvering. The bottom bolt hole spacing is not standard so you need to improvise.

What's your CdA?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [G. Belson] [ In reply to ]
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That is actually what I did with the Cage optimizer and a few washers.

IG: NCGregory8778
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Savage8778] [ In reply to ]
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This Wolf Tooth adapter works as well. You turn it upside down and you use bolt nuts + washers in the channel on the back to mount the tri rig the riser.

https://www.wolftoothcomponents.com/...and-accessory-device






Savage8778 wrote:
That is actually what I did with the Cage optimizer and a few washers.

What's your CdA?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [G. Belson] [ In reply to ]
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not sure if everyone is overthinking this or not, I didn't have an issue mounting it on my gen 2 SC. Turn it upside down then you have a variety of holes to choose from to attach to the Bontrager mount, then the bottom of the wedge you have a variety of holes to choose from to attach to the stand.




Mike Plumb, TriPower MultiSports
Professional Running, Cycling and Multisport Coaching, F.I.S.T. Certified
http://www.tripower.org
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Mike Plumb] [ In reply to ]
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Thanks for confirming, as I also have a gen 2 Trek SC.

Are the wedges also made of alloy or are they plastic?
Would an upside-down mount + a wedge be sufficient strength to hold 2 bottles, back to back? (I would put a 2:1 bracket on top of the wedge, followed by the bottles)

Also unrelated, but what model are those arm cups? Is it this model? And I presume you just install it the same as the regular SC arm rests? And are these for aero or comfort?

Thanks!
Last edited by: timbasile: May 3, 24 10:59
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [erbrown] [ In reply to ]
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Is the BTA bracket secure the way you've attached it? With the one screw? That is how I would most likely have to secure mine and would worry it would rattle too much. Thanks.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [mproctor] [ In reply to ]
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Everything has two bolts holding it in. There are two bolts going into the riser stack, one goes through the BTA extension, the other bolt for the BTA extension is the one you probably see in the pictures.

Everything seems tight, but we'll see once i get on the road with a full bottle.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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The wedges are alloy as well. I assume it would be strong enough to hold two bottles with the right brakes on top to allow two cages. It might be a tight fit length wise compared to body though, not sure as I haven't really ever thought about two cages.
That does appear to be the same cups, closed back and long, I got them about 2 years ago. Combination of reasons, comfort and much easier to maintain arm position in the cups which ultimately means more aero.

Mike Plumb, TriPower MultiSports
Professional Running, Cycling and Multisport Coaching, F.I.S.T. Certified
http://www.tripower.org
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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timbasile wrote:

I'm looking for solutions to raise 2 bottles between my arms (back to back)


I am curious on the why ? Is it an aero, comfort or I need two bottles thing ?

Not judging in any way, just curious.
Last edited by: marcag: May 3, 24 12:06
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [marcag] [ In reply to ]
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marcag wrote:
timbasile wrote:

I'm looking for solutions to raise 2 bottles between my arms (back to back)


I am curious on the why ? Is it an aero, comfort or I need two bottles thing ?

Not judging in any way, just curious.


Two reasons
1 - I'm trying to find aero ways to carry an extra bottle (1 BTS, and 1 BTA already, nothing on the frame), which will allow me not to have to stop in a 70.3 and avoid a hyper concentrated mix in an IM (2 bottles of concentrate instead of 1 means its harder to make a mixing mistake, as at my last IM - 1/3 of a bottle is easier to measure out at each aid station vs 1/6).
2 - I'm trying replicate the effects of a bottle down the jersey by putting the 2nd bottle (if I can) in a similar position, if I feel that the setup is safe
Last edited by: timbasile: May 3, 24 12:34
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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timbasile wrote:
2 - I'm trying replicate the effects of a bottle down the jersey by putting the 2nd bottle (if I can) in a similar position, if I feel that the setup is safe

I wonder if anyone has tested this to be equivalent. I tried once and it wasn',t but it 1 person in the A2 tunnel.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [marcag] [ In reply to ]
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Not that I'm in the wind tunnel or have any way to measure, I'm just operating on general principles here - but was the repositioned bottle at least better than baseline?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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timbasile wrote:
Not that I'm in the wind tunnel or have any way to measure, I'm just operating on general principles here - but was the repositioned bottle at least better than baseline?

2w slower average across 0 to -12.5, slower at low yaw, equal at higher yaw

Remember, sample of 1
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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Ben Deal does a dual, similar to what you wanting to do on his Cervelo P3. He uses the TriRig BTA mount for one bottle and I believe something like a Wolf Tooth B-RAD mount for the second bottle. This is all affixed to his Dragon fly which has 5 bolts on the BTA.

Pics of your tri bike (Page 28): Triathlon Forum: Slowtwitch Forums

"Heart Rate, Watts, I have no idea, I race, I don't pace." Andrew Starykowicz
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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timbasile wrote:
marcag wrote:
timbasile wrote:

I'm looking for solutions to raise 2 bottles between my arms (back to back)


I am curious on the why ? Is it an aero, comfort or I need two bottles thing ?

Not judging in any way, just curious.


Two reasons
1 - I'm trying to find aero ways to carry an extra bottle (1 BTS, and 1 BTA already, nothing on the frame), which will allow me not to have to stop in a 70.3 and avoid a hyper concentrated mix in an IM (2 bottles of concentrate instead of 1 means its harder to make a mixing mistake, as at my last IM - 1/3 of a bottle is easier to measure out at each aid station vs 1/6).
2 - I'm trying replicate the effects of a bottle down the jersey by putting the 2nd bottle (if I can) in a similar position, if I feel that the setup is safe

Not sure if this helps but I had to rebuild my bike after a crash and set up my BTA perfectly with a combo of Profile design angled wedges and Tririg. I had to drill out some holes and recess so the bolt heads were hidden on the top wedge but it positioned the bottle perfectly.

https://profiledesign-au.com/...ts/hsf-bta-wedge-set

I haven’t set up my second BTA bottle yet but I’ll post a pic of my bike pre crash and how I had my second bottle set up for IM racing for the same reasons you have stated but under the extensions.


Last edited by: Shambolic: May 3, 24 17:18
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [marcag] [ In reply to ]
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marcag wrote:
timbasile wrote:
2 - I'm trying replicate the effects of a bottle down the jersey by putting the 2nd bottle (if I can) in a similar position, if I feel that the setup is safe

I wonder if anyone has tested this to be equivalent. I tried once and it wasn',t but it 1 person in the A2 tunnel.

Right with you in this. Everyone is completely misunderstanding the airflow of having a bottle down the front of the kit and just swinging at windmills with bta’s. Silly.

Jim Manton / ERO Sports
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Jim@EROsports] [ In reply to ]
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So if you could position a bottle anywhere in this red zone, where would you put it? (pretending the bottle wasn't down my kit). Or without testing is it better to just keep that space empty?


Benjamin Deal - Professional - Instagram - TriRig - Lodi Cyclery
Deals on Wheels - Results, schedule, videos, sponsors
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Jim@EROsports] [ In reply to ]
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Sounds like a good video for fast or fiction 😉.

"Heart Rate, Watts, I have no idea, I race, I don't pace." Andrew Starykowicz
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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It looked like Marquart had a stacked double bottle BTA setup in Singapore, but I'm not sure how.

https://www.instagram.com/p/C6RXJU8t7qa/

He's got both bottles angled down, though. Mine would leak all over everything.
Last edited by: velorunner: May 5, 24 4:00
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [velorunner] [ In reply to ]
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velorunner wrote:
It looked like Marquart had a stacked double bottle BTA setup in Singapore, but I'm not sure how.

https://www.instagram.com/p/C6RXJU8t7qa/

He's got both bottles angled down, though. Mine would leak all over everything.

He was afraid to be thirsty

2 bottles between the arms
A bottle holder on the back
A round bottle on the frame
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Jim@EROsports] [ In reply to ]
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Depends on how you do it... these two seem like they are doing it right accodring to the eyeball windtunnel.
I think you need three things:
a) close the space between the aero bar extensions.
b) high hands
c) place the bottle so that it closes the gap between the head and the hands and so it directs air around the chest cavity, these guys are almost resting their chin on top of the bottle.







Jim@EROsports wrote:
marcag wrote:
timbasile wrote:

2 - I'm trying replicate the effects of a bottle down the jersey by putting the 2nd bottle (if I can) in a similar position, if I feel that the setup is safe


I wonder if anyone has tested this to be equivalent. I tried once and it wasn',t but it 1 person in the A2 tunnel.


Right with you in this. Everyone is completely misunderstanding the airflow of having a bottle down the front of the kit and just swinging at windmills with bta’s. Silly.

What's your CdA?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [G. Belson] [ In reply to ]
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G. Belson wrote:
Depends on how you do it... these two seem like they are doing it right accodring to the eyeball windtunnel.
I think you need three things:
a) close the space between the aero bar extensions.
b) high hands
c) place the bottle so that it closes the gap between the head and the hands and so it directs air around the chest cavity, these guys are almost resting their chin on top of the bottle.

How would this be different than simple high hands, narrow pads, completely blocking the chest area ?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [G. Belson] [ In reply to ]
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Neither of those would replicate the airflow of a bottle down the kit. Doesn't mean they don't help aerodynamically, but not in the same way, which was my point.

Jim Manton / ERO Sports
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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Here's my setup. First race with this was St Anthony's and it held up to the brick road section and some bumpy streets. May go with carbon tubes at some point, so it's all matchy matchy.

Long M5 button-head hex bolts (~170mm for this setup) down into the threaded portions of the TR dragonfly - with an outer aluminum tube off Amazon with inner diameter of 5mm. Used a washer/bolt combo at the bottom of each one (underneath the dragonfly), to give it some extra staying power.

Single bottle for now. May mock up a platform to do a double-bottle using a metal plate, no angled spacers needed since already flat.

Critiques and recommended changes are welcome!
Last edited by: mrfreeze: May 6, 24 18:50
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Jim@EROsports] [ In reply to ]
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How do we feel about this setup Jim? Thinking with some extra long rear facing bottles I can basically fill the entire area between my crotch and bars ;)


Benjamin Deal - Professional - Instagram - TriRig - Lodi Cyclery
Deals on Wheels - Results, schedule, videos, sponsors
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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Meanwhile @ Ironman HQ




realbdeal wrote:
How do we feel about this setup Jim? Thinking with some extra long rear facing bottles I can basically fill the entire area between my crotch and bars ;)

What's your CdA?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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realbdeal wrote:
How do we feel about this setup Jim? Thinking with some extra long rear facing bottles I can basically fill the entire area between my crotch and bars ;)

I'm just imaging all the sticky spray showering out of that nonstop while you ride!
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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Joe Skipper would be proud of you
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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realbdeal wrote:
How do we feel about this setup Jim? Thinking with some extra long rear facing bottles I can basically fill the entire area between my crotch and bars ;)

love the battle scars on that rig!

also, looks like the bottom red bottle could scoot forward toward the riser and you could go another one behind it - turning the bike is optional! :)
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Jim@EROsports] [ In reply to ]
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Jim@EROsports wrote:
Neither of those would replicate the airflow of a bottle down the kit. Doesn't mean they don't help aerodynamically, but not in the same way, which was my point.

Curious as to why this is the case. Is it because the tri/skin suit smoothens the flow around the water bottle as opposed to the water bottle outside the suit in spite of being (assuming) in the same vertical position and touching the rider's chest?
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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Hows your bike handling??? This is going to lead to alot of issues with people trying to do this and adding additional weight where it isn't designed for. You can argue it's designed for your body weight, but you can shift that when needed, a bottle is fixed and sloshing water inside. i can only see this going badly with water loading like this to add a small aero gain and putting peoples safety at risk.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [culpritbicycles] [ In reply to ]
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culpritbicycles wrote:
Hows your bike handling??? This is going to lead to alot of issues with people trying to do this and adding additional weight where it isn't designed for. You can argue it's designed for your body weight, but you can shift that when needed, a bottle is fixed and sloshing water inside. i can only see this going badly with water loading like this to add a small aero gain and putting peoples safety at risk.
not sure if this was a question for me or someone else, but the handling on my bike is good. With the single bottle, I hardly notice it. There is more change in the handling dynamics going to the tririg scoops, than adding the bottle.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [mrfreeze] [ In reply to ]
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sorry was meant for Real Beal since he has 4 water bottles as bta.

1 is normal and standard up to 1 liter(profile design, etc) is ok. but 2 liters on stem/aerobar is alot.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [culpritbicycles] [ In reply to ]
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culpritbicycles wrote:
Hows your bike handling??? This is going to lead to alot of issues with people trying to do this and adding additional weight where it isn't designed for. You can argue it's designed for your body weight, but you can shift that when needed, a bottle is fixed and sloshing water inside. i can only see this going badly with water loading like this to add a small aero gain and putting peoples safety at risk.
Well I figured if each of my rear facing was one of these tall boys, then my weight distribution would be back to normal.


To be clear, I have no intention to run this setup. Was just screwing around while my baby was napping. Although if I were to be on a very flat course with very little turning, something like Cozumel, running those extra long bottles empty might be amazing at high yaw. Just a joke for now though.

Benjamin Deal - Professional - Instagram - TriRig - Lodi Cyclery
Deals on Wheels - Results, schedule, videos, sponsors
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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The irony isn't whether BDeal runs it or not. The irony is that with Mortal replacing Gatorade and the jersey bottle ban, the actual fastest setup for most courses is something like this. Dangerous, reckless, ugly, legal.

IM banned the jersey bottle to keep an image of "cool triathletes" that never existed. They'll get triathlon bikes that are nearly unrideable.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Lurker4] [ In reply to ]
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Lurker4 wrote:
realbdeal wrote:
How do we feel about this setup Jim? Thinking with some extra long rear facing bottles I can basically fill the entire area between my crotch and bars ;)


I'm just imaging all the sticky spray showering out of that nonstop while you ride!
As well as the bottles!
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [Mike Plumb] [ In reply to ]
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Mike Plumb wrote:
not sure if everyone is overthinking this or not, I didn't have an issue mounting it on my gen 2 SC. Turn it upside down then you have a variety of holes to choose from to attach to the Bontrager mount, then the bottom of the wedge you have a variety of holes to choose from to attach to the stand.

Follow up question for your setup: are you using any wedges to angle the scoops beyond the 15 degree or so incline offered by the gen 2 Speed concept? I tend to grip my ski bars at the shifters so I'd want another 10 or 15 degrees.

Tririg does make an incline spacer kit but I'm not sure if it's 100% compatible with the scoops.

https://tririg.com/...riant=44047757148406
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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Not the one youre asking, but the angled spacers are absolutely compatible with the Scoops. The issue is that for standard scoops (not Scoops Ultimate or any other one piece extension), you're only able to tilt the arm cups themselves. So you'd be able to add 15 degrees to your armpads but then your hands would be way over your bar ends and shifters. On bikes with standard 22.2mm extensions, you just run high rise extensions to create this 'fake' tilt. On Speed Concepts, that's not possible unless you happen to have the adapter.

Benjamin Deal - Professional - Instagram - TriRig - Lodi Cyclery
Deals on Wheels - Results, schedule, videos, sponsors
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [realbdeal] [ In reply to ]
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Thanks for the clarification on the compatibility. Though unless my math is off, the 10° spacers should have me exactly what I need since my arm bars have an angle of 12° and my current setup has me gripping the shifters at about 22-25° (pinky to elbow) - I'd just be angling the scoops closer to what I'm doing already.
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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no not using any wedges for the cups. Bolting them right to the wings has the angle about right for me. I would like to try to get a bit more reach and angle to the bar though, both are maxed out. Saw in an earlier post about turning the cradle that the extension bolts too around opposite that you can get 1-2cm more reach and bit more angle tilt so thinking about trying that.

Mike Plumb, TriPower MultiSports
Professional Running, Cycling and Multisport Coaching, F.I.S.T. Certified
http://www.tripower.org
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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you may contact the guys at rockerplates.de
their spin off rockairlabs does some nice customized stuff and helped out some desperate triathletes here in Europe.

contacting them does not cost anything...
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [velorunner] [ In reply to ]
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velorunner wrote:
It looked like Marquart had a stacked double bottle BTA setup in Singapore, but I'm not sure how.


https://www.instagram.com/p/C6RXJU8t7qa/

He's got both bottles angled down, though. Mine would leak all over everything.


Not to derail this topic further (my original question was about the bracket, which has been ordered so thank everyone! but anyhow)...

FWFI, Lionel Sanders' latest video on wind tunnel testing, has the fastest position for Day 1 as being the double barreled BTA approach (much like Marquart here but angled flat), with the top bottle explicitly positioned to replicate the effect of bottle down the jersey. 1 bottle in that same position (high against the chest) also tested faster.

https://www.youtube.com/watch?v=eytUlq-7bHg


Obviously comes with the caveat that n=1, and this is day 1 of testing and he hasn't released the day 2 video yet.
Last edited by: timbasile: May 24, 24 13:46
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Re: TriRig BTA Riser - Is this Proprietary to TriRig bikes? [timbasile] [ In reply to ]
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timbasile wrote:
velorunner wrote:
It looked like Marquart had a stacked double bottle BTA setup in Singapore, but I'm not sure how.


https://www.instagram.com/p/C6RXJU8t7qa/

He's got both bottles angled down, though. Mine would leak all over everything.


Not to derail this topic further (my original question was about the bracket, which has been ordered so thank everyone! but anyhow)...

FWFI, Lionel Sanders' latest video on wind tunnel testing, has the fastest position for Day 1 as being the double barreled BTA approach (much like Marquart here but angled flat), with the top bottle explicitly positioned to replicate the effect of bottle down the jersey. 1 bottle in that same position (high against the chest) also tested faster.

https://www.youtube.com/watch?v=eytUlq-7bHg


Obviously comes with the caveat that n=1, and this is day 1 of testing and he hasn't released the day 2 video yet.


Yes, but something interesting. It bought him 1 watt. But Jonas says it was 4 watt at 0 deg.
So to come out at 1watt, it was 4 watt at 0 deg and -5 watt at 10deg by the formula they were using.

-5w at 10deg : may want to consider that one at Kona :-)
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