Introduced in 1990 with the 105 SC group this bottom bracket features improved seals on the cups and a rubber sleeve for extra protection. Designed for use with the 105 (1055/105 SC) chainset also available on the site this BB will work with a number of late 80s and early 90s chainsets due to it’s 113mm long JIS axle.
- British thread cups
- 113mm long axle for 68mm bottom bracket shells
- JIS taper
- Made in Japan