Wolf Tooth MK0 Bottom Bracket - English BSA 68/73mm For 30mm Spindle Shadow Gray

Wolf Tooth MARKZERO (MK0) Bottom Brackets take performance to another level with aggressive machining custom ceramic bearings and intricately designed race sealing built to their exacting specifications. This design saves you watts while proving durable enough for the most intense off-road racing inclement conditions and are fully serviceable. MK0 components are proudly machined at Wolf Tooth HQ in Minnesota USA.

MK0 silicon nitride ceramic bearings feature custom race sealing for flawless performance against the elements and endless speed

Custom polymer spindle bushings separate the bearing inner race and crank spindle to eliminate metal-on-metal contact the leading cause of bottom bracket creaks

Bushings also helps enhance bearing longevity with an interface to the bearing gutter seal for maximum weatherproofing

Aggressively machined to be lighter than the competition while offering superior speed and performance in all conditions

6061-T6 Aluminum cups and AISI 52100 chrome bearing steel races hardened to Rc 60-65 with ACOSUR-ZNA corrosion resistant coating

Bottom Bracket Shell I.D.	1.37
BB/Frame Interface	English
BB Shell Width (mm)	73
Weight	77
Spindle Interface Type	RaceFace Cinch 30mm
Defined Color	Gray
Title	Default Title