Best Bottom Bracket Bearing For Mountain Bike In May 2025

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Looking for the Best Bottom Bracket Bearing For Mountain Bike that can last long and perform well? Read our review and buying guide on Best Bottom Bracket Bearing For Mountain Bike below.

To help you in your search, we have completed this list of the Best Bottom Bracket Bearing For Mountain Bike.

Top Rated Best Bottom Bracket Bearing For Mountain Bike Of 2025

Rank	Product Name	Score
1	SHIMANO UN55 BB Square Taper Bottom Bracket (68x122.5mm) Buy Now	9.7 Buy Now
2	SHIMANO Deore XT M8000 Bottom Bracket - 68mm BSA Buy Now	9.5 Buy Now
3	SRAM GXP Bottom Bracket, Team Cup English 68/73mm Buy Now	9.1 Buy Now
4	BikeHand 3 in 1 Bicycle Bottom Bracket Removal Crank Tool - Compatible Buy Now	8.8 Buy Now
5	Park Tool BBT-90.3 Press Fit Bottom Bracket Bearing Tool Set - Fits BB90 Buy Now	8.6 Buy Now
6	UPANBIKE Bike Crankset with Bottom Bracket for Road Bike Mountain Bicycle 8 9-Speed Buy Now	8.3 Buy Now
7	BB 30 Hybrid Ceramic Bearing Kit - (2) Two BB30 Bearings - PF30 Buy Now	8.1 Buy Now

1. SHIMANO UN55 BB Square Taper Bottom Bracket (68x122.5mm)

• Sealed cartridge bearings
• Bottom bracket fit - 68mm bsa of eng

2. SHIMANO Deore XT M8000 Bottom Bracket - 68mm BSA

• Better sealing keeps the elements out
• Small ball bearings for better rotation

3. SRAM GXP Bottom Bracket, Team Cup English 68/73mm

• Cranksets - bottom brackets are interchangeable between sram and truvativ cranksets but can only be installed with sram cranks.
• Shell width - fits 68 or 73-millimeter bracket shells. comes with spacers for 73mm.
• Gxp technology - gutter seal design cuts friction, durability and weight improving both feel and performance.
• Frame interface - for mountain and road bikes with english threading.
• Gutter seal technology - drastically improves sealing against the elements while reducing seal drag and friction.

4. BikeHand 3 in 1 Bicycle Bottom Bracket Removal Crank Tool - Compatible

• Compatibility i: shimano 16-notch x 44mm: fits 16-notch, 44mm diameter external bearing bottom bracket cups including shimano hollowtech ii, campagnolo ultra-torque and power torque, race face, fsa, sram, truvativ, chris king, and phil wood outboard bearing. also fits disc brake rotor lockrings with 16 external notches. note: will fit shimano tl-fc24 and tl-fc25 adapters.
• Compatibility ii : bottom bracket wrench, shimano 16-notch x 41mm: new for 2015. fits shimano bbr60 (ultegra 11-speed 6800 series) and bb-mt800 (deore xt m8000 series ) bottom brackets.
• Order now, worry free! we're so confident about our product quality that we can provide a life time warranty ! made in taiwan.
• Compatibility iii: bottom bracket wrench, shimano 16-notch x 39mm: new for 2015. fits shimano xtr bb93 and dura ace bb9000 bottom brackets.
• Quality: this bikehand yc-307bb is a triple-ended bottom bracket wrench. 30cm whole length to provide great leverage and is made of high-quality heat treated steel for improved functionality and longer life.

5. Park Tool BBT-90.3 Press Fit Bottom Bracket Bearing Tool Set - Fits BB90

• Installs and removes bearings and bearing units used in bb90, bb92, shimano press fit, sram gxp press fit, race face press fit and other press fit bottom bracket systems using 24mm or 22mm spindles
• Bushings are used in conjunction with a park tool bearing press to press the bearings into the bottom bracket shell
• Bearing removal tool is used to drive bearings out of the bottom bracket shell

6. UPANBIKE Bike Crankset with Bottom Bracket for Road Bike Mountain Bicycle 8 9-Speed

• Chainring numbers:42t-32t-22t,bolt circle diameter:104/64mm
• Bottome bracket fits standard 68mm and 73mm shell
• What you get: 1 x crankset(3 chainings),1 x bottom bracket,1 x crankarm(170mm)
• Fit road bike and mountain bike
• Cassette compatability:8 speed, 9 speed

7. BB 30 Hybrid Ceramic Bearing Kit - (2) Two BB30 Bearings - PF30

• Bb30 sram enduro cannondale fsa shimano sram campagnolo bottom bracket bearings
• Bearing dimensions: (30 x 42 x 7mm) 6806-2rs
• Direct replacement for both bb30 and pf30 press fit bearings
• Lifetime warranty