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Bottom
Brackets

Praxis Works

68mm Shimano Conversion for PF30/BB30 Frame

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

M30 Press Fit Ceramic Bottom Bracket - 68mm BB30/PF30 - R- Collet

£167.00  
Was  £185.00   | Save  £18.00   (10%)

Praxis Works

Ceramic Conversion Bottom Bracket (Converts Shimano 24mm Road 68mm Cranksets To BB30/PF30)

£167.00  
Was  £185.00   | Save  £18.00   (10%)

Praxis Works

M30 BB Right Road 79mm R-Collet Bottom Bracket - Ceramic

£167.00  
Was  £185.00   | Save  £18.00   (10%)

Praxis Works

Ceramic Bottom Bracket (M30-BB86/BB90/BB92)

£185.00

Praxis Works

M30 Threaded Ceramic Bottom Bracket - BSA 68/73mm

£144.00  
Was  £160.00   | Save  £16.00   (10%)

Praxis Works

73mm Shimano Conversion for PF30/BB30 Frame - Ceramic Bearings

£135.00  
Was  £150.00   | Save  £15.00   (10%)

Praxis Works

M30 Press Fit Ceramic Bottom Bracket - Road BB386 Evo

£144.00  
Was  £160.00   | Save  £16.00   (10%)

Praxis Works

68mm M30 Bottom Bracket Conversion For BB30/PF30

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

73mm Shimano MTB BB30/PF30 Bottom Bracket Converter

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

M30 Bottom Bracket - 68mm/73mm BSA With Internal Sleeve

£41.00  
Was  £45.00   | Save  £4.00   (9%)

Praxis Works

68mm Shimano Conversion for OSBB Specialized Frames

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

M30 Press Fit Bottom Bracket - 73mm BB30/PF30 - R-Collet

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

M30 Threaded Bottom Bracket - T47 68mm/73mm

£54.00  
Was  £60.00   | Save  £6.00   (10%)

Praxis Works

M30 Bottom Bracket - BB RIGHT ROAD 79mm R-Collet

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

Conversion Bottom Bracket (Converts SRAM/GXP/ISIS2 MTB 73mm BB30/PF30

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

BB30/PF30 Bottom Bracket For Sram GXP/ISIS2 68mm Road Cranks

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

M30 Thru Road 68mm BB30/PF30 R-Collet Bottom Bracket

£68.00  
Was  £75.00   | Save  £7.00   (9%)

Praxis Works

3028 M30 Bearing Service Kit - Ceramic

£90.00  
Was  £100.00   | Save  £10.00   (10%)

Praxis Works

M30 Thru Bottom Bracket - BB92

£41.00  
Was  £45.00   | Save  £4.00   (9%)

Praxis Works

M24 Threaded Bottom Bracket - BSA 68mm/73mm

£41.00  
Was  £45.00   | Save  £4.00   (9%)

Praxis Works

M30 Bottom Bracket - BB86 Road Wide / BB90/92 Mountain

£41.00  
Was  £45.00   | Save  £4.00   (9%)

Praxis Works

M30 Bottom Bracket - Road BB386 Evo

£41.00  
Was  £45.00   | Save  £4.00   (9%)

Praxis Works

68mm Standard Threaded Road Bottom Bracket (Black)

£41.00  
Was  £45.00   | Save  £4.00   (9%)

Praxis Works

73mm Standard Threaded MTB Bottom Bracket (Black)

£41.00  
Was  £45.00   | Save  £4.00   (9%)

All bikes have bottom brackets, including road bikes, e-bikes, mountain bikes, hybrid bikes and gravel bikes. The bottom bracket of the bike connects the crankset of the bike to the frame - meaning that the crankset can rotate, without the entire frame rotating!

Bottom brackets will typically last for thousands of miles, which can be a couple of years for riders - although bottom brackets on mountain bikes may need replacing sooner, with ingress of mud & grime from the trails - which can be negated by a strict cleaning regimen. The biggest giveaway to a bottom bracket that needs replacing, is a wobbling crank or excessive noise from the bottom bracket.

In some cases, a noisy bottom bracket may not need replacing - it may just need the bearings replacing or greasing.