



Bottom Brackets
Screwing BB 30 Ultra
Screwing BB 30 Ultra is a thread-together bottom bracket suitable for 30mm spindle ROTOR, FSA and SRAM DUB 29mm. Adopt 30 mm Ceramic ball angular contact bearing relies upon the magic formula grease flow the inner to smooth the ball surface to maximize your power to accelerate your speed.

Screwing BB 30 Ultra
Sale price$175.00 USD
Regular price (/)

Simplification and challenges

Tapered Profile

Ceramic Rolling
General
BB Type Threaded |
Material Aluminum cups |
Bearing Compatibility BBA30 or BBA29 |
Bearing
Bearing Type Fun 5° |
Bearing material Ceramic |
In The Box
30mm Spindle
2 Bottom Bracket cups 2 30 Fun 5° Bearings 2 Dust alloy covers 2 1mm Ø30mm spacers 3 2.5mm cup spacers(MTB 68mm-73mm) BSA Accessories 2 0.3mm cup spacers BSA Accessories 2 0.5mm cup spacers BSA Accessories 2 1mm cup spacers(MTB to Road) BSA Accessories |
29mm Spindle
2 Bottom Bracket cups 2 Fun 5° Bearings 2 Dust covers 10 1mm Ø29mm spacers 2 0.5mm Ø29mm spacers 3 2.5mm cup spacers(MTB 68mm-73mm) BSA Accessories 2 0.3mm cup spacers BSA Accessories 2 0.5mm cup spacers BSA Accessories 2 1mm cup spacers(MTB to Road) BSA Accessories |
Item | Spec | Shell DIA | Shell Width | Crankset | Weight |
---|---|---|---|---|---|
BSA30AC | BSA | Thread 34mm | 68-73mm | 30mm axle crankset | 76.2g |
BSA29AC | BSA | Thread 34mm | 68-73mm | Sram DUB | 78.6g |
ITA30AC | ITA | Thread 35mm | 70mm | 30mm axle crankset | 88.5g |
ITA29AC | ITA | Thread 35mm | 70mm | Sram DUB | 90.7g |
T47E30AC | T47 | Thread 47mm | 68/73mm | 30mm axle crankset | 120.9g |
T47E29AC | T47 | Thread 47mm | 68/73mm | Sram DUB | 123.4g |
T47I30AC | T47 | Thread 47mm | 86.5-92mm | 30mm axle crankset | 103.9g |
T47I29AC | T47 | Thread 47mm | 86.5-92mm | Sram DUB | 106.5g |