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Power Arms SL MTB

Storck designed, developed and produced the first carbon crankset in the world. The original Power Arms Pro crank was the lightest and stiffest available for over a decade and was only knocked off the top spot by Storck’s latest evolution, the Power Arms SL.

The new Power Arms SL crank is the lightest integrated carbon arm/spider with alloy axle crank in the world, and the road version recently tested as the stiffest available (Cycling Plus Magazine 09/12). If you want the ultimate form of propulsion this is it! No other MTB crank offers such levels of strength in such a lightweight package.

Additional Info

  • 95 kg recommended rider weight limit
  • Supplied with outboard BSA bearings and fitting spanner
  • 92 mm Press-Fit bearings optional


  • Carbon crankset without chainrings
  • Full carbon arms and spider
  • 30 mm diameter alloy axle
  • Q-Factor 174 mm
  • Lengths 170 / 172.5 / 175 mm
  • Bolt circle diameter 104/64 mm 5 bolt (triple)
  • Weight from 500 grams (Including bearing cups & lockring)


  • Carbon weave with silver/blue graphics