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Adding power meter to existing set-up
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TRI Tom
Nov 2, 09 8:48
Post #1 of 13 (494 views)
Adding power meter to existing set-up
Can't Post
I want to train and race with a power meter on my TRI and Road bikes.
What is the best route to go when I have a Cervelo P3 with a Zipp Crank; a Cervelo S3 with a Sram Red Crank; I have the following Zipp rear wheels – Team Issue; 808; and 1080. And I use a Garmin 705 Edge with both bikes.
What is the most affordable way to integrate a power meter?
I typically train with the Team Issue; race the P3 with the 1080; and race the S3 with the 808.
As for TRIs, I mainly race Olys but throw in 1 HIM and a couple of Sprints.
Do I rebuild an existing wheel(s) with a Power Tap hub(s)? Wait until SRM makes a unit compatible with a Zipp Crank? Other???
Tom A.
Nov 2, 09 9:00
Post #2 of 13 (482 views)
Re: Adding power meter to existing set-up [TRI Tom]
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]
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In Reply To:
I want to train and race with a power meter on my TRI and Road bikes.
What is the best route to go when I have a Cervelo P3 with a Zipp Crank; a Cervelo S3 with a Sram Red Crank; I have the following Zipp rear wheels – Team Issue; 808; and 1080. And I use a Garmin 705 Edge with both bikes.
What is the most affordable way to integrate a power meter?
I typically train with the Team Issue; race the P3 with the 1080; and race the S3 with the 808.
As for TRIs, I mainly race Olys but throw in 1 HIM and a couple of Sprints.
Do I rebuild an existing wheel(s) with a Power Tap hub(s)? Wait until SRM makes a unit compatible with a Zipp Crank? Other???
Since you already have the 705, and a SRAM crankset and BB on your road bike, my suggestion would be to SELL the Zipp crank and use the proceeds to buy a SRAM CinQo 950 crank and another GXP BB for the P3. Swapping that crank and PM between the 2 bikes is literally a 1 bolt - 1 minute operation once you have GXP BBs on both.
Problem solved ;-)
Carl Spackler
Nov 2, 09 9:53
Post #3 of 13 (432 views)
Re: Adding power meter to existing set-up [Tom A.]
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sorry for the hijack...
tom, having an issue with the cinqo, and since you ride a specialized, wondering if you encountered as well. i just put a saturn on a specialized fact crank and mounted on the shiv. with the internal bearing cups there isn't enough room to wedge a magnet between the frame and crank. as one of the st smart guys, any suggestions?
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Andrew Coggan
Nov 2, 09 10:02
Post #4 of 13 (415 views)
Re: Adding power meter to existing set-up [Carl Spackler]
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sorry for the hijack...
tom, having an issue with the cinqo, and since you ride a specialized, wondering if you encountered as well. i just put a saturn on a specialized fact crank and mounted on the shiv. with the internal bearing cups there isn't enough room to wedge a magnet between the frame and crank. as one of the st smart guys, any suggestions?
I'm not one of the SmartGuys^TM, but I have been using a CinQo for a few months, and so can tell you that those little magnets they provide are quite powerful. So, for starters I'd suggest putting one (or several stacked on top of each other) on the top or bottom of the chainstay, and seeing if that is close enough to activate the crank.
Failing that, the only other option that I can envision is to make an SRM-style mounting bracket.
Tom A.
Nov 2, 09 10:09
Post #5 of 13 (401 views)
Re: Adding power meter to existing set-up [Carl Spackler]
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]
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In Reply To:
sorry for the hijack...
tom, having an issue with the cinqo, and since you ride a specialized, wondering if you encountered as well. i just put a saturn on a specialized fact crank and mounted on the shiv. with the internal bearing cups there isn't enough room to wedge a magnet between the frame and crank. as one of the st smart guys, any suggestions?
Actually...I don't have a Specialized (yet)...but my teammate has one with the CinQo/Fact setup. IIRC, he couldn't put the magnet directly across from the "ring" on the crank when mounted on his Tarmac SL2 either...so he just got it as close as he could. As Andy says, they're rare earth magnets and they ARE quite strong. Get it as close as you can and see what happens.
PM Mark Cote and suggest that they imbed a magnet into the Shiv BB layup at the proper radius ;-)
BTW, who are you calling a smart-a$$??
Carl Spackler
Nov 2, 09 10:11
Post #6 of 13 (397 views)
Re: Adding power meter to existing set-up [Andrew Coggan]
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thanks for the suggestion. i tried one on the bottom of the chainstay and it didn't activate, but hadn't thought of trying the stack approach. will give that a shot.
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Tom A.
Nov 2, 09 10:15
Post #7 of 13 (388 views)
Re: Adding power meter to existing set-up [Carl Spackler]
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thanks for the suggestion. i tried one on the bottom of the chainstay and it didn't activate, but hadn't thought of trying the stack approach. will give that a shot.
I would also suggest stacking them (which actually increases the overall field strength) and trying to get as best aligned so that the "flat" portions point towards the ring as much as possible.
If all else fails, contact Mieke or Jim at thinkfast@quarq.us to see if they have any suggestions/solutions...
Carl Spackler
Nov 2, 09 10:18
Post #8 of 13 (381 views)
Re: Adding power meter to existing set-up [Tom A.]
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i did include a comment about it via the specialized field test site this morning, and given that i've been talking teammates into the cinqo...
btw, smart GUYS list. you folks with all the intelligence are so sensitive!
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Tom A.
Nov 2, 09 10:26
Post #9 of 13 (374 views)
Re: Adding power meter to existing set-up [Carl Spackler]
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In Reply To:
i did include a comment about it via the
specialized field test site
this morning, and given that i've been talking teammates into the cinqo...
btw, smart GUYS list. you folks with all the intelligence are so sensitive!
What is this site you speak of?
afbadbrad
Nov 3, 09 3:40
Post #10 of 13 (255 views)
Re: Adding power meter to existing set-up [TRI Tom]
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If you are not in a rush you can wait till Q1 2010 for metrigear to come out with the powermeter in the speedplays. Just a thought.........I really want someone to hook an SRM, Powertap, and those speedplays all up to one bike and see the results and how close together all the data is. I believe there website is www.metrigear.com. They are suggesting the price will be under $1,000 so that is a plus.
Brad
http://aftriathlonguy.blogspot.com
MarkyV
Nov 3, 09 6:54
Post #11 of 13 (167 views)
Re: Adding power meter to existing set-up [Carl Spackler]
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I just have to mention that at the human level Jim and Mieke are just REALLY GOOD PEOPLE. And that counts for something. :)
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TRI Tom
Nov 3, 09 7:30
Post #12 of 13 (142 views)
Re: Adding power meter to existing set-up [afbadbrad]
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After posting this yesterday, I read about the Metigear's Vector. This product sounds very promising and has a lot of potential to capture a lot of data. It sounds like the compatible software will have to increase their data fields to display the data from each pedal. This may be a great option since it is so easy to switch pedals between bikes. Now I'll just have to sell my Time pedals for Speedplay's.
Tom A.
Nov 3, 09 7:44
Post #13 of 13 (128 views)
Re: Adding power meter to existing set-up [TRI Tom]
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In Reply To:
After posting this yesterday, I read about the Metigear's Vector. This product sounds very promising and has a lot of potential to capture a lot of data. It sounds like the compatible software will have to increase their data fields to display the data from each pedal. This may be a great option since it is so easy to switch pedals between bikes. Now I'll just have to sell my Time pedals for Speedplay's.
Until they actually start shipping product, it's really all just "vaporware"...admittedly pretty cool "vaporware", but "vaporware" nonetheless...
I just thought I'd point that out if you'd planned on actually using a power meter sometime in the next 6 months (we're just at the beginning of Q4 2009 and assuming a conservative end of Q1 2010 availability for the Vector).
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