Wheels Manufacturing BB30 to Shimano Bottom Bracket Angular Contact Bearings BLK Cups Width-36mm Includes special compound brake pads

Includes special compound brake pads for optimal braking on both wet and dry surfaces

Carbon is a great material

ISEV-ISII is for a Shimano I-SPEC EV shifter mounting to a Shimano I-SPEC II brake

Backing Plate Material Steel Compound Organic Designed for ebike Yes Heat Sink No Pad Shape Number 50

SKI CORE:R90

Wheels Manufacturing BB30 to Shimano Bottom Bracket Angular Contact Bearings BLK Cups Width-36mm Includes special compound brake padsWheels Manufacturing BB30 to Shimano Bottom Bracket with Angular Contact Bearings Black Cups. Machined aluminum shell threads together for precise bearing alignment and frame fit reducing bottom bracket creaking and premature bearing wear. Replaceable Enduro bearings Made in the USA TECH SPECS Bottom Bracket Shell I. D. 42 BB Frame Interface BB30 BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 127 Spindle Interface Type Shimano Hollowtech II