wolf182 Posted January 16, 2009 Share evening i am new to cycling and got myself a rc6000 '08 model, m size with a std 105 group set. i am looking to test a compact crank but not sure about the crank arm lenght's. my current bike has the 172.5, will it be advisable to take a 175mm with the compact crank ? please advise.. thanx Link to comment Share on other sites More sharing options...
Guest Agteros Posted January 16, 2009 Share Dunno, but I was always under the impression that it is a function of leg length (more specifically lower leg...), but have a look at http://www.machinehead-software.co.uk/bike/cranks/cyclist_crank_length_calculator.html #include std_disclaimer.h /* There might be more, or/and better info out here and there Link to comment Share on other sites More sharing options...
wolf182 Posted January 16, 2009 Share thnx Agteros, i have been reading up online now and there are alot of different opinions out there. what i mostly realised now was that there is much more to it that what i first thought. i think ill get some quotes from shops tomorrow and also ask there opnion, for now i think as i am comfortable on the the 172.5, i should probably keep that lenght. Link to comment Share on other sites More sharing options...
wolf182 Posted January 16, 2009 Share using that calculator u sent me actually worked out to 173mm, which is close enough to 172.5mm thnx Link to comment Share on other sites More sharing options...
Johan Bornman Posted January 17, 2009 Share Forget about the crank's length. You won't notice any difference. If the 175mm crank is on the bike you want, that's the bike for you. Link to comment Share on other sites More sharing options...
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