Race Face Era E-Bike Carbon Cinch CrankarmsThe dawn of a new EraMade for the rigors of enduro, at a weight that's in the class of an XC crank, the new Race Face Era Carbon Cinch E-Bike Crankarms are designed to handle the rigors of e-bike riding and are specific to Bosch G4 e-bike drivetrains. This high strength-to-weight ratio maximizes pedaling efficiency and holds up against bumps and scrapes, keeping the cranks rolling and looking new for life. Race Face is so sure of this, that they're even guaranteed for life. These Bosch G4-specific Era Crankarms feature pedal inserts that are bonded directly into the carbon fiber for improved longevity, while innovative stainless steel wear plates on the outside of the crank arms resist shoe rub and add impact resistance. The Era Carbon Cinch Crankarms boast all the performance you want, with the high-level durability you need. SPECIFICATIONSSpeedsChainring DependantChainringSold SeparatelyCrank Arm Length165, 170 or 175mmSpindle Diameter30mmIncludesCrank Arms, Pedal Boots, Washers and Spindle Spacers (chainrings and bottom bracket sold separately)Chainring MaterialSold SeparatelyBolt Center Diameter (BCD)Direct Mount (Race Face Cinch)Crank Arm MaterialCarbon Fiber with Stainless Steel Wear PlateBottom Bracket TypeCinch, Bosch G4Intended UseTrail, All-Mountain, Enduro, e-MTB | Race Face | Era E-Bike Carbon Cinch Crankarms 165mm BG4 Spindle