– Improved sealing structure
– Integrated design to fit Shimano 24mm cranks, no additional adapter required
– Integrated seal and pre-assembled HSC ceramic bearings
– ABEC 7 standard alloy steel bearing races
– Grade 3 Si3N4 ceramic balls – highest precision in the market
– Kluber grease
– Specially designed Nylon bearing retainer for more shock absorbing and less friction
– Light touch Dual lip rubber seals for a better protection
– 120 g
Pressfit 30 OSBB standard frame (non-thread) with shell ID 46mm, width 61mm
24mm spindle cranks, e.g. Shimano Dura Ace, Shimano Ultegra, Shimano 105, Shimano Tiagra, FSA etc.
Note: 2 x 3 mm spacers is required to build up the OSBB frame to 68mm in order to accept most of cranks. The 3mm spacers will come with the bottom bracket.