SHIMANO crankset 'SLX', M670-series with Hollowtech 2 crank shaft & 48/36/26 teeth

Tough, aggressive & light - got to the heart of Shimano's SLX components

This item is no longer being offered by the manufacturer

Product information & technical details

brand: SHIMANO
Material: Aluminium, stainless steel
Length: 170mm, 175mm
brand: SHIMANO
teeth: 26, 36, 48
bolt circle diameter: 64, 104
Gear system: 10-speed
sprocket-/chain size: 1/2" x 5/64"
bottom bracket type: integrated, Ø 24mm
Bottom Bracket Width: 68, 73, 92
Bottom bracket type: BSA, PF 24
Chainline: 50


  • The new SLX crank is robust and light - just optimized on the target group, namely MTB All mountain & Enduro
  • Hollowtech II crank arms - hollow forged for a better ratio of weight and stability
  • The middle chainring made of composite material and steel teeth, the smallest is completely made of steel which increases the durability. The largest chainring is made of aluminium
  • The design is inspired by the top groups XTR and XT and fits for virtually any wheel optically well
  • Incl. bottom bracket BSA thread

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.
DynaSys That is Shimano's newest generation of 10-speed MTB circuit.
The entire drivetrain is revised. It is more robust, the gear combinations are optimised and the loss of strength is minimized
The 32 teeth chainring in the middle, by which is most driven, minimizing the change of the chain angle in relation to the main frame on full suspension bikes, which reduces the impact of the suspension on the circuit and vice versa.


English reviews written for SHIMANO SLX-670 crank 3s M