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Discussion Starter · #1 ·
I am building a 26er for my 10 year old son. It will be 1x10 and I have the choice of two crank sets that I have on hand. I would like to know which one would be best/lightest for him. I have a Shimano Alivio 3x crank (Octalink) that I have already converted to 1X9 for him and I also have a new Truvative Stylo 1X crank. Which would be the best to use? The frame is a 2011 Trek 4500. Will both crank sets work with the same bottom bracket? Or will one or the other require a better or lighter bottom bracket? Thanks for the help!


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afaik, Shimano bottom brackets will not work with Truvativ cranks, and vice versa. I would go for the Stylo cranks.

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I would suggest you might consider crank arm length, shorter legs need shorter cranks. Too long a crankarm will make pedaling difficult for him (hard to get on top on the pedals while seated climbing). I had my 10 year old on 165 cranks.
 
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