Shimano Deore SM-BB52 68/73mm BSA Hollowtech Bottom Bracket MTB

Specifications:

• Application: Cross Country, City & Touring, Freeride, Downhill
• Type: BSA
• Shell Width: 68/73 mm, 83 mm
• Axle Diameter: 24 mm (Hollowtech II)

Technical Information:

• Bearings:  steel
• Bottom Bracket Cup Material:  Aluminium
• Bottom Bracket Shell Material:  resin

Features:

• bearing cups painted
• High power transfer efficiency
• improved seals, smooth running

recommended for ZEE FC-M640, FC-M645 / Deore FC-M591, FC-T611, FC-M610, FC-M612, FC-M615, FC-M617, FC-M6000 / Alivio FC-M4050, FC-M4060, FC-T4060 / FC-M552-L, FC-M552-S, FC-M622, FC-M625, FC-M627, FC-MT500, FC-MT200 / FC-T551-S, FC-T551-L

Technology:

Hollowtech II
The outboard bearings offer better weight distribution and more stability which provides a more efficient power transfer. The diameter of the bearing axle (24 mm) was an important factor in development because the axle has a positive effect on stiffness, stability, weight, and rotating efficiency.

*Well packing without original packaging*