10 Best Bottom Bracket For Road Bike of December 2025

• 14 g lighter than SM-BB6700
• smoother than SM-BB6700 (50 % less friction)
• small ball bearings keep weight low
• bearing cups anodized
• recommended for Ultegra FC-R8000, FC-6800, 105 FC-5800, Metrea FC-U5000, FC-CX70

SHIMANO

• For 68-73mm road bike bottom bracket frame.
• Compatible with 24*24mm Shimano or 24*22mm SRAM GXP with a conversion ring.
• Special threaded interlocking bottom bracket design to reduce noise and for easy installation and maintenance.
• Double O ring keeps water or dust out of the frame and works as the buffer between the frame and BB.
• Aluminum alloy construction for long service time.

Lixada

• Superlight carbon road frame
• 44/49/52/54/56/58cm carbon road bike frame
• PF30 Bottom Bracket
• UD Black Matte or Glossy Finished

Airwolf

• Shimano SM-BB71-41A MTB / SM-BB71-41B Road Bike Press-Fit Bottom Bracket
• BB Shell Width: 86.5 mm，BB Cup Diameter: 41mm
• Model SM-BB71-41B fits road bike 105/UT
• Package includes: one unit bottom bracket

JKSPORTS

• Made of aluminum alloy, light weight, high axial strength and compatibility
• Made of aluminum alloy, light weight, high axial strength and compatibility
• Crank Arm length 175mm, Crank related holes distance 74mm
• Compatible with: GXP Crankset only
• We Stand Behind Our Products. If for any reason you are not completely satisfied with your purchase, please contact us via Amazon message to get a refund or replacement

Zmarthumb

• COMPATIBILITY I: Shimano 16-Notch X 44mm: Fits 16-notch, 44mm diameter external bearing bottom bracket cups includes Shimano Hollowtech II, Campagnolo Ultra-Torque and Power Torque, FSA,GXP, Truvativ, 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.
• COMPATIBILITY III: Bottom Bracket Wrench, Shimano 16-Notch X 39mm: New for 2015. Fits Shimano XTR BB93 and Dura Ace BB9000 bottom brackets.
• COMPATIBILITY IV: Bottom Bracket Wrench, FSA Megaevo, English threading - 68mm width (BC-1.37” x 24T) which is used on road bike.
• ORDER NOW, WORRY FREE! We're so confident about our product quality that we can provide a life time warranty ! Made in Taiwan.

BIKE HAND

• NEW BSA Bottom Brackets
• Designed for BSA frame / BB Shell Width 68mm Road Racing
• ˙BB Cups L&R bearing cups with #6805 CERAMIC bearings , ˙BB shell 1 x Plastic shell / seal .Spacers : 2 x 0.8mm spacers
• ˙BB Shell Width 68mm / Weight : 86g / Made in Taiwan

Aerozine bike

• Cassette compatability:8 speed; 9 speed
• Chainring numbers:42T-32T-22T,Bolt Circle Diameter:104/64mm
• Bottome bracket fits standard 68mm and 73mm shell
• Fit road bike and mountain bike
• What you get: 1 X Crankset(3 chainings),1 X Bottom bracket,1 X Crankarm(170mm)

UPANBIKE

• IRD IRD QB-55 JIS 68X103

IRD