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Hi Ian,
I'm in for my first tri bike- opting for a canyon speedmax CF 8.0.
My measurements are: height: 174 inseam: 85 saddle height: 75
From reading your advice on the forum, I could go S or M (measurements are quite near someone named Roman) - so I wanted to go for:
Speedmax CF 8.0 size M, change possibly to shorter stem of 70 , change the cranks (175) to 165 cranks (or maybe even smaller ??)
Would that sound right ? How would I ideally set up the bike in terms of padX/Y, saddle and other ?
Many thanks in advance for your help, Ian. I'd like to progress this year from 70.3 to a full ironman, so will be enjoying quite some time on the bike:-)
Bart,
Based on your numbers you've got pretty long legs for a guy your height. I'm thinkin' your Pad Y is ~617 and Pad X is ~472
For the Canyon Speedmax CF you have two options (and it's nice to have two options as availability can be an issue)
Option 1 - get a size small, push the pads all the way out to their maximum to get the Pad X of 472, and the Pad Y of 617 is right in the sweet spot of the small's range so you'll have the perfect amount of spacers under the stem so that the top of the stem and the bento are flush..and you'll need ~20mm of arm pad pedestal. This is not the optimal bike because you are maxed at the cockpit distance - now, the bike comes with an 80mm stem so if you feel cramped on the small you could get a 90 and buy yourself some room.
Option 2 - get a size medium, bring the pads not all the way back, but one hole fwd of all the way back and then keep the spacers under the stem but slam the aerobars to the base bar and you should have it. I like this set up better as you've got room to move up/down/fore/aft to find the right spot.
I cannot speak to the saddle set up - not without seeing you (in person is always best, on video can be an option). Seems like you're pretty confident with a seat height of 750mm so that's a good start. My guess is that if you use the Fizik Mistica that comes on the bike the set back on that noseless saddle would be somewhere between 40mm back and Zero depending upon where you sit on the saddle (should be more to the front).
The medium will very likely arrive with 175mm cranks. As you alluded to... pull these off before you ever mount the bike. Install a shorter crank and then sell the old cranks as "never ridden". How short...well, 165 is an easier length because more of them are made. 160 might be better for you especially if you ride a lower drop (AKA arm pad elevation). Sounds like you are already game for short cranks so then the next consideration has to be...if you're buying cranks should you feed two birds with one scone (PETAs new animal friendly re-tooling of an old idiom) and get the new cranks with power?? Prolly!
Ian
Ian Murray
http://www.TriathlonTrainingSeries.com I like the pursuit of mastery
Twitter - @TriCoachIan