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Bottom
Brackets

Cannondale

BB30 Bottom Bracket Bearings

£19.99

Cannondale

SISL2 68X109 Pressfit 30 Ceramic Bottom Bracket Kit (KP248)

£152.99  
Was  £169.99   | Save  £17.00   (10%)
Available Sizes

Cannondale

119mm Ai Complete Bottom Bracket For SuperX 2017

£77.99  
Was  £85.99   | Save  £8.00   (9%)

Cannondale

125mm Ai Complete Bottom Bracket For SuperX 2017

£76.99  
Was  £84.99   | Save  £8.00   (9%)

Cannondale

Plastic Si Bottom Bracket Shims (5 Pack)

£9.99

Cannondale

Si Bottom Bracket Wave Washer

£6.99

Cannondale

Pair Of Si Bottom Bracket Circlips

£6.99

Cannondale

Hollowgram Spacers - Mountain

£22.99  
Was  £24.99   | Save  £2.00   (8%)

Cannondale

SiBB To 73mm Bottom Bracket Adapter

£17.99  
Was  £19.99   | Save  £2.00   (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.