SHIMANO crankset 'DXR', MX71-series with 104mm bolt circle diameter

Shimano DXR ® stands for top design & functionality for BMX-riding

This item is no longer being offered by the manufacturer
  • low Q-factor
  • Hollowtech 2 design
  • extreme solid
  • pedal thread made of steel

Product information & technical details

brand: SHIMANO
Material: Aluminium, stainless steel
Length: 170mm, 175mm, 180mm
brand: SHIMANO
bolt circle diameter: 64, 104
Gear system: Single speed
sprocket-/chain size: 1/2" x 1/8“
bottom bracket type: integrated, Ø 24mm
Bottom Bracket Width: 68
Bottom bracket type: BSA
Chainline: 44


  • The new revised DXR crank boasts with a completely new appearance and function
  • Forged aluminium crank arms in solid design
  • 4 arm crank spider in new design
  • Steel pedal thread inserts dramatically increase the stability & reliability
  • Delivery without chainring

Further details

Hollowtech II In regard to the entire system crank, an optimum balance of strength and rigidity of the crank arms, but also the axis is desirable. Hollowtech 2 combines optimally these properties to ensure the highest possible stability, which can again increase the pedal efficiency. Due to the light, hollow crank arms, produced by an exclusive forging technology of Shimano, the weight is kept low however not at the expense of a bad stability or reduced durability.
The shaft used for Hollowtech 2 has a diameter of 24mm and is made of steel by strength considerations. Thus it can take up the loads, such as torsional strength and flexural strength optimally.
The Hollowtech 2 bottom bracket are equipped with precision sealings to keep up the rotation efficiency of the crank as long as possible.

English reviews written for SHIMANO DXR-M71 crank