CeramicSpeed BB90 Bottom Bracket - 24mm Spindle Black Chain Retention System Part Featuring some of the lowest

Featuring some of the lowest stack height bearing cover options available with premium stainless steel Hellbender bearing and 6061 T-6 Aluminum cups and covers the Hellbender 70 Slam is a premium headset created for riders seeking to lower their handlebars as low as possible without compromising bearing longevity and proper preload

Custom fit rubber flap can be trimmed to fit in smaller diameter bars

Versatile - Tread design is optimized for a wide range of conditions balancing traction handling and rolling speed

Bottom Bracket Shell I

CeramicSpeed BB90 Bottom Bracket - 24mm Spindle Black Chain Retention System Part Featuring some of the lowestCeramicSpeed BB90 Bottom Bracket 24mm Spindle Black. The CeramicSpeed BB90 bottom bracket offers bearings with extremely low friction improved power transfer and a service life that far exceeds traditional steel bearings. TECH SPECS Bottom Bracket Shell I. D. 37 BB Frame Interface BB90 BB Shell Width (mm) 90 Weight 37 Spindle Interface Type Shimano Hollowtech II Spindle Interface Type FSA MegaExo Spindle Interface Type FSA MegaExo Light Spindle