Shimano STEPS FC-E8000 Left Crank ArmFeaturing a hard-wearing aluminium construction, this crank arm is ideal at handling all the knocks and bumps that happen during long adventures in the mountains. Coming equipped with Shimano’s Hollowtech II technology, this model offers a fantastic strength to weight ratio for conquering the most demanding of rides. Specifically designed for the extra speed, torque and power that’s produced by electric mountain bike (E-MTB) motors, this crank arm is well-equipped for the demands of E-MTB trail riding. Features: Material: Aluminium Use: Electric Mountain Bike (E-MTB) Chain Guide: No BB Axle Serration: 24mm Single or Pair: Single left crank arm Hollowtech II crank armA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.