"What Our Gearhead® Experts Are Saying: ""I’ve run these on a Bosch Gen 4 Performance Line CX setup and they’ve been rock-solid under load. The stiffness is noticeable on steep climbs, and the shorter length options help a lot with pedal clearance in technical terrain. If you want a dependable alloy crank for hard E-Bike riding, this one just works.""When we’re muscling up punchy climbs and threading through rock gardens, the Race Face Aeffect R E-Bike Crank Arms keep our power smooth and controlled. Designed to handle the added torque of E-Bike riding, they bring a confident, planted feel that lets us focus on line choice instead of drivetrain stress. Clean, purposeful styling makes them feel right at home on modern trail and enduro E-Bikes. Built from tough 7050 aluminum, these crank arms are optimized for Bosch Gen 4 Performance Line CX drive systems, delivering seamless motor integration and efficient power transfer. A wide Q-factor adds stability, while multiple crank length options help fine-tune fit and reduce pedal strikes on technical terrain. It’s a durable, no-nonsense solution for riders who push their E-Bikes hard."
Price: $46.40 from Backcountry
| Merchant | Price | |
|---|---|---|
| $46.40 | Visit Store |
"What Our Gearhead® Experts Are Saying: ""I’ve run these cranks on a Bosch Gen 4 E-MTB and they’re exactly what I want for aggressive trail riding. They feel stiff under power, shrug off rock strikes, and the shorter length options really help with...
"What Our Gearhead® Experts Are Saying: ""I’ve installed these on multiple Bosch Gen 4 and Gen 5 E-bikes, and they’ve been impressively solid for the price. The arms feel stiff under load, hold up well to rock strikes, and the shorter lengths really...
