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The ultimate BSA MTB upgrade for Shimano—ultra-low friction with extreme durability for off-road riding.
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The CeramicSpeed BB ALPHA BSA Shimano MTB Bottom Bracket is engineered for riders who demand maximum durability, efficiency, and reliability in aggressive off-road conditions. Designed for BSA (English threaded, 73mm MTB standard) frames, it pairs perfectly with Shimano and other 24mm spindle cranksets, delivering a precise interface and consistent power transfer across demanding terrain.
At its core, hardened stainless-steel bearing races are combined with Grade 3 Silicon Nitride ceramic balls, providing CeramicSpeed’s signature ultra-low friction while significantly enhancing resistance to wear, corrosion, and contamination. The advanced sealing system and precision dust covers deliver up to 500% improved protection against moisture, mud, and debris, ensuring smooth performance even in the harshest MTB environments.
The next-generation BB ALPHA platform features lighter cups and a simplified spacer system, reducing weight by 10% while making installation faster and more intuitive. Handbuilt in Denmark and backed by a lifetime warranty, this bottom bracket is designed to outlast your bike.
FEATURES
・ BB ALPHA next-generation platform with improved durability and reduced weight
・ Hardened stainless-steel races with Grade 3 ceramic bearings for ultra-low friction
・ Advanced sealing system with up to 500% improved protection against moisture and contamination
PRODUCT POSITIONING
・ Flagship MTB ceramic bottom bracket for Shimano BSA setups
TARGET AUDIENCE
・ MTB riders using Shimano or other 24mm spindle cranksets
・ Riders tackling muddy, wet, and technical trail conditions
・ Cyclists seeking maximum durability with premium drivetrain efficiency
SPECIFICATIONS
SKU: 115547
Bottom Bracket Type: BSA English Threaded (73mm MTB)
Crank Compatibility: 24mm spindle (Shimano and similar)
Discipline: Mountain Bike
Net Weight: 81.0 g
Gross Weight: 191 g
Cup Material: Lightweight alloy construction
Bearing Type: CeramicSpeed Ceramic Bearings
Assembly: Handbuilt in Denmark
Warranty: Lifetime Warranty
Included: BB ALPHA for BSA Shimano MTB, Spacer Kit, UFO TECH Long Life Bearing Grease 5 ml, decal