BlackBearing B5 BB30 28mm Praxis
Description
The Blackbearing bottom bracket range has been specifically developed to withstand the most extreme conditions.
The BBlock technology (built in 2 threadable parts) allows a better alignment of the casing in its assembly offering several advantages:
- minimizes possible cracks
- greater protection to the bearing extending its useful life
- an easier replacement of the bearing.
CNC machined aluminum.
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Stock Code:WMBB-BBUNIV-SRAM
The BBUNIV-SRAM kit adapts SRAM/Truvativ cranks to virtually any BB/PF30/BB30a frame, including mountain bikes, 2x10 systems, narrow-shell road bikes, road triples, etc. For use only with bottom bracket shell widths from 68mm to 83mm.
This kit includes 2 adapter shims and a 15-piece assortment of left and right side spacers.
Simply tap the adapters into the 6806 bearing in the BB shell or cups, then install the cranks using the included spacers to adjust chainline, or to take up any side-to-side movement in the crank.
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Stock Code:WMBB-BB-T47A-GXPStock Code:WMBB-BB-T47A-24MMStock Code:WMBB-BB-T47A-29MMStock Code:WMBB-BB-T47A-30MM
T47a (asymmetrical) threaded BB cups for T47a frames and 24mm diameter spindle compatible cranks. Cups have internal bearings, and can be used in BB shells with widths from 77.5 - 79mm. Machined aluminum cups thread together directly into a Cervelo, Factor and Felt T47a BB shell. Bearings are easily serviced or replaced. Includes sleeve to fit between cups for added protection from dirt and grime, and also keeps your internal wires and hoses from rubbing on the crank spindle. T47a BB cups are similar to standard BSA threaded cups in that the drive side cup is left-hand thread and the non-drive side cup is right-hand thread. Use a quality grease when installing in steel or aluminum BB shells, and an anti-seize compound compatible with titanium BB shells.
T47 external cup on the drive side
T47 internal cup on the non-drive side
Compatibility
- Cervelo T47a 79mm shell width
- Factor T47a 77.5mm shell width
- Felt T47a 77mm shell widthExpected Date:19 March 2026Expected Date:19 March 2026Expected Date:19 March 2026$240.00 (RRP)$245.00 (RRP)$245.00 (RRP)$245.00 (RRP) -
Stock Code:BBBB-PF30-B3$54.08 (RRP)
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Stock Code:BBBB-SPACER-GXP$11.81 (RRP)
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Stock Code:CKBB-AAB1Stock Code:CKBB-AAR1Stock Code:CKBB-AAS1Stock Code:CKBB-AAT2Stock Code:CKBB-AAY1Stock Code:CKBB-AABFStock Code:CKBB-AAB2Stock Code:CKBB-AAM2Stock Code:CKBB-AAP1Stock Code:CKBB-AAZ2Stock Code:CKBB-AAG2
REQUIRES A CHRIS KING THREADFIT24 FIT KIT
ThreadFit™ 24 fits 24mm cranks in 68mm BB shells.
Our ThreadFit™ 24 bottom bracket is designed and built to be durable, serviceable, and silent. Manufactured to create the most precise interface between your frame’s bottom bracket shell and your cranks, it makes your cranks spin lightly and easily, without interference, for the lifetime of your bike (with a little regular service). King’s legendary, angular-contact bearings, both steel and ceramic, are the best in the industry, and actually get faster over time, as their contact surfaces wear.
You want this bottom bracket because it offers super low drag. You want this bottom bracket, because it can be opened, cleaned and repacked for years of faithful service. You want this bottom bracket, because you don’t want to think an awful lot about your bottom bracket.
- Engineered, manufactured and assembled in Portland, Oregon USA
- King Lifetime Warranty
- Legendary made-in-house bearings
- A Fit Kit is required for use$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)$349.00 (RRP)
