Ramped paddle shaped center knobs roll efficiently and provide excellent traction for climbing and braking

Computer functions: Current/ average/ maximum speed

But their PI Dry® technology is what really sets these warmers apart

Rim Width (Internal): 14mm

The Contact is engineered to offer maximum stiffness at the lowest possible weight

SHIMANO BB-UN300 Bottom Bracket - 68 x 122.5mm - BSA - Square Taper Orange Seal Ramped paddle shaped center knobsSHIMANO Square Type Bottom Bracket MTB Standard Structure Square Type Bottom Bracket SHIMANO quality performance cartridge bearing square bottom bracket Better chainline stability with chain line stabilizer 3 structures available Standard, E type, chain case options Adapter material: Aluminum