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BMX (5)
Scott
YZ0.2/0.3 Bottom Bracket (2010)
Shimano
XTR PF41 Press Fit Bottom Bracket
Shimano
XTR M980 HollowTech II 68/73mm Bottom Bracket
MAHLE
X20 Sram GXP Adapter Set
MAHLE
X20 Sram DUB Wide/Non Boost Adapter Set
MAHLE
X20 Sram DUB Adapter Set
MAHLE
X20 BB30/PF30 Adapter Set
Gusset
Waffen BMX Bottom Bracket - US x 22mm
Scott
Voltage Bottom Bracket Shell Euro External 73mm
Scott
Voltage Bottom Bracket Set, Mid BB-18H 19mm Axle For Voltage (2014) And Voltage FR 700 (2018)
Shimano
Ultegra - 105 BB-R60 English Thread Bottom Bracket (68mm)
Gusset
Trident ISIS Bottom Bracket - 68x113
Enduro Bearings
TorqTite PF30A XD15 Pro Bottom Bracket - 24mm
Enduro Bearings
TorqTite PF30 XD15 Pro Bottom Bracket - 30mm
Enduro Bearings
TorqTite PF30 XD15 Pro Bottom Bracket - 24mm
Enduro Bearings
TorqTite PF30 Stainless Steel Bottom Bracket - GXP
Enduro Bearings
TorqTite PF30 440C Stainless Steel Bottom Bracket - DUB 29mm
Enduro Bearings
TorqTite PF30 440C Stainless Steel Bottom Bracket - 30mm
Enduro Bearings
TorqTite Maxhit BB86/92 Bottom Bracket - 24mm
Enduro Bearings
TorqTite BBRIGHT XD15 Pro Bottom Bracket - 30mm
Enduro Bearings
TorqTite BBRIGHT 440C Stainless Steel Bottom Bracket - 30mm
Enduro Bearings
TorqTite BB86/92 XD15 Pro Bottom Bracket - 24mm
Enduro Bearings
TorqTite BB386 XD15 Pro Bottom Bracket - 24mm
Enduro Bearings
TorqTite BB30A XD15 Pro Bottom Bracket - 24mm
Enduro Bearings
TorqTite BB30A 440C Stainless Steel Bottom Bracket - 24mm
Enduro Bearings
TorqTite BB30 XD15 Pro Bottom Bracket - 30mm
Enduro Bearings
TorqTite BB30 440C Stainless Steel Bottom Bracket - DUB 29mm
Enduro Bearings
TorqTite BB30 440C Stainless Steel Bottom Bracket - 30mm
Hope Technology
Threaded Bottom Bracket - BSA - 24mm
Chris King
ThreadFit T47 30x Bottom Bracket
Chris King
ThreadFit T47 30i Bottom Bracket
Chris King
ThreadFit T47 24x Bottom Bracket
Chris King
ThreadFit T47 24i Bottom Bracket
Chris King
ThreadFit 30 Bottom Bracket
Chris King
ThreadFit 24 Bottom Bracket
CeramicSpeed
T47A Shimano 24mm Bottom Bracket (Coated)
CeramicSpeed
T47/86 To Sram GXP Bottom Bracket
CeramicSpeed
T47/86 To Shimano 24mm Coated Bottom Bracket
CeramicSpeed
T47/86 To Shimano 24mm Bottom Bracket
CeramicSpeed
T47/68 External Shimano 24mm Bottom Bracket
CeramicSpeed
T47/30 Internal 30mm Bottom Bracket
Hope Technology
T47 Threaded Bottom Bracket - 30mm - Black
Hope Technology
T47 Threaded Bottom Bracket - 24mm - Black
Wheels Manufacturing
T47 Outboard Bottom Bracket With Angular Contact Bearings
Wheels Manufacturing
T47 Outboard Bottom Bracket With ABEC-3 Bearings For 29mm (SRAM DUB) Cranks
Wheels Manufacturing
T47 Inboard Bottom Bracket With Angular Contact Bearings
Wheels Manufacturing
T47 Inboard Bottom Bracket With ABEC-3 Bearings For 29mm (SRAM DUB) Cranks
Praxis Works
T47 Bottom Bracket - Shimano 68/73mm
FSA
T47 68mm Road Bottom Bracket - Shimano 24mm
FSA
T47 68mm Road Bottom Bracket - BB386 30mm
Hope Technology
Stainless Press Fit Bottom Bracket PF41
Wheels Manufacturing
Sram Multi Bottom Bracket Adaptor
Cannondale
SiBB To 73mm Bottom Bracket Adapter
Cannondale
Si Bottom Bracket Wave Washer
Wheels Manufacturing
Shimano Multi Bottom Bracket Adaptor
Cannondale
SISL2 68X109 Pressfit 30 Ceramic Bottom Bracket Kit (KP248)
SRAM
Road DUB Bottom Bracket
Wheels Manufacturing
Replacement Enduro 6806/29 ABEC-3 Sealed Bearings For Wheels Mfg DUB Bottom Brackets
Scott
RaceFace Bottom Bracket Set For Big Jon (2016)
Shimano
RS501 BSA Threaded 68mm Bottom Bracket
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.