Hollowtech II is using 24 mm axle and bearings. Shimano made the decision to adopt the 24 mm diameter axle and bearings to provide the best balance of rotating performance / stiffness / strength / sealing / weight in Shimano Quality.

FEATURES:

• Fits Shimano Hollowtech II Cranksets

• New seal construction

• BB Shell Width: 68mm English, or 70mm Italian

• BB/Frame Interface: choose; English, or Italian

• Bottom Bracket Shell I.D.: 1.37" (English)

• Spindle Interface Type: Shimano Hollowtech II

• Weight: 73g.

• Color: Silver

PRODUCT SPECIFICATIONS