It's fairly well known among the pedal scientists that more contact surface means more stability between pedal and shoe. Alright, we know that there aren't really people in lab coats conducting experiments on pedals, but Shimano has this pedal really thought out. The Shimano XTR PD-M9100 does have a wider contact area for more security. This pedal has an improved axle durability and the cylindrical contact surface easily sheds mud and debris. This makes for consistent clipping-in and out. The M9100 pedals will give you total control between shoe and pedal whether you're ripping downhill in an XC race or dismounting and remounting in a CX race.
Shimano's Rider-Tuned design offers two axle length options to minimize the Q-factor for XC riders who are running Boost drivetrains (52mm & 55mm). Q-Factor is the distance between the outside of one crank arm to the outside of the opposite crank arm. The effect of a shorter pedal axle is a similar position between feet, known as the stance width. This stance width matches that of Shimano’s SPD-SL road pedals, providing a smooth transition for road riders diving into gravel and cyclocross.
1.0mm cleat spacer
- Better mud clearance
- Improved axle durability
- Tension adjust
Axle Length: 52mm (short axle), (-3mm from 55mm standard)
Pedal Body Material: Aluminum
Weight: 310g (short axle)