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Bottom
Brackets

Chris King

ThreadFit T47 30i Bottom Bracket

From  £250.00

CeramicSpeed

T47/30 Internal 30mm Bottom Bracket

£247.95  
Was  £274.95   | Save  £27.00   (10%)

Hope Technology

T47 Threaded Bottom Bracket - 30mm - Black

£104.00  
Was  £115.00   | Save  £11.00   (10%)

Praxis Works

M30 Threaded Bottom Bracket - T47 68mm/73mm

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

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.