As bottom bracket refers to the bearings of the bicycle to which the crank set is attached. The crank arms are then mounted onto the bottom bracket shaft.
Bottom brackets perform their role invisibly, yet they are the most heavily loaded bearing of the bicycle. Therefore, you should pay particular attention to high quality when buying these parts.
The bottom bracket that fits your bike depends on the bottom bracket housing of the frame and the crank which is used. With each bearing in our range, you will find detailed information concerning the standards and measures that correspond to it. Of course you can also make use of our advisory services.
· Improved sealing system with reduced friction · Suitable for all Shimano road cranksets with integrated axle Ø 24 mm · BSA thread: 1.37 x 24, 68 mm shell width · ITAL. thread: 36 x 24, 70 mm shell width · Weight: approx. 77 g · Incl. TL-FC25 adapter Manufacturer's ref. BSA: SMBBR60B Manufacturer's ref. ITAL.: SMBBR60I
· Improved sealing system with reduced friction · Aluminium cups · Suitable for all Shimano road cranksets with integrated axle Ø 24 mm · BSA thread: 1.37 x 24, 68 mm shell width · ITAL. thread: 36 x 24, 70 mm shell width · Weight: approx. 65 g · Incl. TL-FC24 adapter Manufacturer's ref. BSA: SMBB9000B Manufacturer's ref. ITAL.: SMBB9000I
High-quality screw cups with cartridge bearing to upgrade existing systems. · suitable for Race Face X-Type and Shimano Hollowtech II MTB/ATB cranks · made of forged aluminium 7050 and CNC milled · solid exterior bearings with balls that are 35% larger than those of interior systems - for extreme durability · suitable for frames with BSA thread (1,37 x 24) and 68/73 mm case width
The e*thirteen bottom bracket is designed for cranks with 30 mm axle shaft and fits PF30 frames. By using oversized bottom brackets, the load capacity is increased by 20%. · for frames with PF30 standard (46 mm internal diameter) · for 68/73/83 mm housing width · bottom bracket cups: aluminium · oversized bearings with double seal · suitable for E13 TRS/XCX/LG1 Including: bottom bracket cups including spacers Suitable tool for mounting/dismounting: item no.: 2222493 Manufacturer's ref.: BB20.P-PF30.K
High-quality tuning bottom bracket for Shimano Hollowtech II and Race Face X-Type MTB/ATB cranksets. The R3 sealing system features a specially shaped sealing lip with steel-plate reinforcement. Thus the slide-on seal is firmly seated, defining and guaranteeing optimised function with low friction. · BSA thread (1,37 x 24 tpi) · for 68/73 mm case width · bottom bracket cups: aluminium · stainless steel angular contact ball bearings · incl. distance rings, spacer and clamping bolt