Full Speed Ahead Micro ACBBlue/Gray Seal Headset Bearing 45x45 Stainless 1-1/8" ModelNumber=956 3 Night Modes (runtime): Solid

3 Night Modes (runtime): Solid - 20 lumens (20 hours) Flash - 20 lumens (100 hours) Pulse - 20 lumens (30 hours)

}microSHIFT Acolyte Super Short Cassette - 8 Speed 11-38t Black ED Coated

Rear Axle Type 12mm Thru x 142mm Rear Axle Type 12mm Thru x 148mm Rear Axle Type 12mm Thru x 157mm Rear Hub Spacing (mm) 157 Rear Hub Spacing (mm) 148 Rear Hub Spacing (mm) 142

Designed with Shimanos Dynamic Chain Engagement+ to provide more chain retention and smoother pedaling even over bumpy terrain

A built-in USB stick allows for cable-free charging and up to 23 hours of runtime

Full Speed Ahead Micro ACBBlue/Gray Seal Headset Bearing 45x45 Stainless 1-1/8" ModelNumber=956 3 Night Modes (runtime): SolidFull Speed Ahead Micro ACBBlue Gray Seal Headset Bearing 45x45 Stainless 1 1 8". FSA bearings that set directly into the frame without the use of pressed in cups. 36 45 degrees is Cane Creek compatible 45 45 degrees is Campagnolo compatible TECH SPECS Cartridge Bearing Angle 45x45 Bearing I. D. (mm) 30. 5 Bearing Type Cartridge Bearing O. D. (mm) 41. 8 Thickness 8