Road Bike Pedal Length

When setting up our bikes we make sure that all aspects of the bike are dialled into our functional anatomy for maximal comfort and best performance such as saddle height reach shoe pedal interface and that all important well fitting saddle. Generally speaking stem lengths on road bikes vary from 80 to 140mm with 100 to 110mm perhaps the most common sizes. When using cranks that are the same proportional length relative to inseam length as in this example of 20 of inseam length the taller rider is being asked to move his longer biomechanical levers legs and longer mechanical levers crank arms through a much larger circle pedal circle with much greater foot speed to pedal at 105 rpm and achieve the 50 km h speed.

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This allows riders with naturally wider hips to maintain correct leg and foot alignment on the pedals.

Road bike pedal length. 165 180mm in 5mm. Road cranksets are typically available in a wider size range than mountain bike cranksets. Shimano s optional extended axle adds 4mm to the distance between the crank and the foot position. Crank length may well be the most important and most expensive bike fit adjustment.

He had traded in his pain free old bike so was not aware of the crank lengths on that bike. It also requires a bit of explaining that s where this video comes in. 165mm 180mm in 2 5mm increments 11s dura ace shimano mountain. 5 7 170cm with short legs for height 74 8cm had recently bought a new bike and started to experience hip pain.

An aspect often overlooked is crank length most of us happily riding the cranks supplied with the bike. This size specific approach goes a long way to getting you set up with the correct stem length providing you ve chosen the right size frame another area where a bike fit comes in useful. The new bike was a 52 so a suitable size for him other than it was fitted with 172 5mm cranks.