WebJul 2, 2014 · IMO most people would be better off switching from 170mm cranks to 160mm or 165mm cranks. At the high performance end the power output varies in interesting ways. Since power = torque x speed, and torque = force x radius, a longer crank means more torque but also more leg movement to produce it. And vice versa for shorter cranks. WebJul 16, 2006 · Second, in the saddle a 155 may allow you to turn a slightly BIGGER gear and possibly generate a little more power. However, going down 15mm when out of the saddle will be a pretty big disadvantage due to the decrease in leverage. You'll probably fatigue a lot faster when climbing out of the saddle or sprinting.
170 vs. 175 crank arms . . . Does it make any real difference?
WebTwo answers - some people are sensitive to crank length and report knee pain etc with the "wrong" length for them. some (most) people just won't notice. I've got from 165-175mm cranks on various bikes. Barring adjusting the difference in saddle height by a cm it makes zero difference to me. (Started on 170, tried 165, didn't notice. WebPersonally, I don't think that 5mm could make that much of a difference. 5mm difference on a crank that is 170 mm long will be a change of 3% for the crank length. But the crank is moved by your leg. Assuming your leg … britney hinchliffe
What Crank Arm Length Should I Run? (We Clear The Confusion!)
WebMar 11, 2013 · The added length makes your knees bend more at the top of pedal strokes and extend more at the bottom -- both of which can lead to biomechanical injuries if you jump from 170 mm to, say, 180 mm. Also, longer cranks reduce cadence -- and a brisk cadence is the key to good time trialing. mann2 Registered Joined Oct 16, 2012 316 Posts WebOct 14, 2014 · Joined Mar 23, 2014. 257 Posts. #2 · Oct 14, 2014. In theory I think 175mm should be slightly easier, but the difference is so small between 170 and 175 radius that I really don't believe it would make any noticeable difference - I think literally any other change to your bike would be a far better way to address peddling efficiency/effort. WebFWIW, I regularly go back and forth between 170mm and a 175mm without even thinking about it. The 175 is on more of a play bike than a miles bike, sits on a higher bottom bracket, sees more spurts while standing. The other two bikes (road and tour) get more cadence, have a lower center of gravity, get ridden for hours and hours straight. britney hines