Evo-R Posted February 17, 2009 Share Hi all What is the correct crank size that i should use? 172.5 ; 175 ; 177.5 ? Im 1.76m tall and ride a medium size frame. Regards Link to comment Share on other sites More sharing options...
AndreZA Posted February 17, 2009 Share YOu also get 170mm and 180. 172.5 should be fine. Link to comment Share on other sites More sharing options...
Cyclewizz Posted February 17, 2009 Share I agree with Mampara, go for a 172.5mm Link to comment Share on other sites More sharing options...
gummibear Posted February 17, 2009 Share I am 1,76 and ride a 54cm top tube and 172.5 cranks.I have tried 175 but it never felt right for me. Link to comment Share on other sites More sharing options...
The_Break Posted February 17, 2009 Share This is a question that has still never been equated to give an answer.Personally, I am 179 tall but my legs are slightly shorter for the leg torso ratio than an average rider. I have tried 172.5, 175 and 177.5 cranks for many months each. Here is what I found: 172.5 - Felt fine as these are what are normally fitted by shops.175 - I felt that these cranks helped me to climb a little better seated than the 172.5 and this makes sense due to the longer crank arm and generally lower cadences.177.5 - These are awesome for time trialing and climbing seat, however I found that when I really need to take the cadence up over 100-110 it was a bit too long. I also road 177.5 on my racing bike with the 175 on my other bike of which I road equally. The 175 just felt better. My advice, go for 175 for your height as you will climb better and will have slightly more power on the flats too and they are not so long you will spin out. Have a friend who is 174cm and he also rides 175mm. We are both A bunch riders in all the big races. Link to comment Share on other sites More sharing options...
Evo-R Posted February 17, 2009 Share This is a question that has still never been equated to give an answer. Personally' date=' I am 179 tall but my legs are slightly shorter for the leg torso ratio than an average rider. I have tried 172.5, 175 and 177.5 cranks for many months each. Here is what I found: 172.5 - Felt fine as these are what are normally fitted by shops.175 - I felt that these cranks helped me to climb a little better seated than the 172.5 and this makes sense due to the longer crank arm and generally lower cadences.177.5 - These are awesome for time trialing and climbing seat, however I found that when I really need to take the cadence up over 100-110 it was a bit too long. I also road 177.5 on my racing bike with the 175 on my other bike of which I road equally. The 175 just felt better. My advice, go for 175 for your height as you will climb better and will have slightly more power on the flats too and they are not so long you will spin out. Have a friend who is 174cm and he also rides 175mm. We are both A bunch riders in all the big races.[/quote'] Thank you for the info!!!! Ill go for the 175 then Link to comment Share on other sites More sharing options...
Daxiet Posted February 17, 2009 Share I vote 172.5 - I am ~1.75m short and ride a medium RC3000 with 172.5 cranks. However in pure theory you should have more power and less speed from a longer crank. On MTB I feel more at home with 175mm. Link to comment Share on other sites More sharing options...
mountain_lion Posted February 17, 2009 Share I am 1.7m short also with shorter legs and consider myself a "fun rider". On the road I use 172.5mm cranks. For real riding (MTB ) I use 175mm cranks. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now