Shimano SM-BB91-42A bottom bracket - pressfit for Specialized OSBB
Made in Japan
The Shimano SM-BB91-42A is a pressfit bottom bracket that allows a Shimano Hollowtech II crank to be fitted into a Specialized MTB frame with an OSBB aluminium bottom bracket. These have a special shell width of 84.5 mm with 42 mm shell diameter. Thanks to its 24 mm bearing and axle diameter, the inner bearing convinces in terms of stability, weight and efficiency.
Shimano BB91-42A Press Fit Bottom Bracket, XTR quality, compatible with all MTB hollowtech 2 chainsets.
Complete your XTR level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranks
Cups are made from fibre reinforced polymer material which reduces the risk of frame noise and damage
Set includes left and right hand cups, 2.5 mm spacer
Sealed cups keep out dirt and water
Maintenance free
Compatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells with 2 spacers (not included)
42 mm cup diameter
Easy press-fit installation
Please note - not supplied with inner sleeve
Dcbikes Product Specifications :
Application: Cross Country
Type: OSBB
Shell Diameter: 42 mm
Shell Width: 84.5 mm
Axle Diameter: 24 mm (Hollowtech II)
Technical Information:
Bearings: steel
- for Specialized MTB OSBB Pressfit aluminium frames etc
Technology:
Hollowtech II
The externally mounted bottom bracket offers better weight distribution and stability for more efficient power transmission. The diameter of the bottom bracket axle and the bearing (24 mm) was an important factor in the development, as the bottom bracket axle has a significant impact on stiffness, stability, weight and rotational efficiency.
Manufacturer Part Number:
I-SMBB9142A
Package Includes :
- 1 x Shimano SM-BB91-42A right bearing cup, incl. bearings
- 1 x Shimano SM-BB91-42A left bearing cup, incl. bearings
- 1 x 2.5 mm spacers
Buy Shimano Components & Accessories From Dcbikes® Online Bike Store www.dcbikes.com.sg | Singapore Favourite Choice For Mountain Bike, Bicycle Parts Components & Accessories Shop
