Precision made with the highest quality materials, Prime Bottom Brackets and BB adaptors ensure your cranks run smoother for longer.
Low Friction Bottom Bracket Designed so that the bearings rest on the axle of the crank, these BBs provide a straight load to the bearings, which means your BB will last longer. This also allows us to make the Prime Threaded BB with tighter tolerances, so it runs smoother with less friction. This means you'll require less effort to make it up that hill or sprint for the line. To keep our Threaded BB running smoother for longer, we use special seals that keep water out of the bearings. We use multiple smaller seals, which reduces friction and provides a better barrier against moisture and dirt. Our bearings themselves are manufactured to precision and packed with slick, waterproof grease. All of the above combine to make the Prime Threaded Bottom Bracket the ideal choice for riders who want the best from their bike components. Please note: BSA & ITA options available, so please ensure you select the correct item from the drop down.
Water Repellent To make our BB86 Bottom Bracket even more durable, we've used special seals, which keep moisture out while keeping drag to a minimum. A tube is also included to further enhance water repellence. Our bottom brackets are hand-assembled, so we can ensure that all our BBs are finished to perfection to keep your bike riding smoother for longer. Ceramic Bearings With our ceramic bearing option, friction is reduced meaning less energy is required to turn the cranks, they're also more durable, and don’t rust so they'll require less maintenance. If you're a rider seeking out every possible advantage over the competition, the ceramic option can help take your performance to the next level.
Featuring Prime's Race compound, with a higher percentage of Kevlar, strength and durability is increased, while vibrations that cause brake squeal are reduced. Multiple hard and soft metals have been effectively added to our compound to improve the modulation and heat build up, making Prime's Shimano Road Disc Brake Pads the ultimate choice for Shimano Road disc brake systems in wet and dry conditions.
Featuring Prime's Race compound, with a higher percentage of Kevlar, strength and durability is increased, while vibrations that cause brake squeal are reduced. Multiple hard and soft metals have been effectively added to our compound to improve the modulation and heat buil up, making Prime's Shimano Road Disc Brake Pads the ultimate choice for Shimano Road disc brake systems in wet and dry conditions. And, with our strong, lightweight Carbon-Steel backplate weight is reduced by 27% when compared to our standard steel backplate.
Replacement pair of seals for your Praxis BB for Shimano cranks.Pair of orange sealsFor Praxis Shimano BB's that are BSA / T47 / BB30-PF30
The Praxis Works Shimano Hollowtech II bottom bracket converter is designed to be a proper bottom bracket BB for installing Shimano Hollowtech II cranks in either BB30, PF30, or Specialized s OSBB road frames. Our patent pending design keeps the cartridge bearings outboard of the frame right on Shimano spec for greater rigidity and free of frame/c-clip tolerance issues that other conversion bb systems deal with.Patent Pending Outboard Bearing Design Collet style non-drive cup expansion for wiggle-free pressNon-Drive O-Ring compensates for frame width discrepanciesFor BB30, PF30, and Specialized Road OSBB frames onlyFor Shimano Hollowtech II cranksShimano 24mm MTB 73mm BB30/PF30Simply press in the longer non-drive-cup, then the shorter drive cup threads into it. As the drive cup threads in, our trademark Collet system expands to a precise limit evenly dispersing pressure for a super tight fit. With both cups connected and our collet set exactly to spec, there is no chance the bearings can come out of alignment or wiggle/walk out of the frame. This bb converter design also uses a compressible O-ring on the non-drive side cup to compensate for frame shell width discrepancies.
Praxis Works standard BSA English threaded Bottom Bracket is Shimano compatible. The 7075 T6 alloy cups feature CNC finishing and standard anodizing. Smooth and durable, the high-grade Enduro 2437 steel bearings are fully sealed and are a fantastic replacement BB for your Shimano drivetrain.Compatible with Shimano Hollowtech II cranksMFG Machined AluminiumBearing Enduro 2437 steel with high grade grease and fillSize & Use 68mm version for Road / 68/73mm version for MTNFrame Spec BSA English threaded framesCompatibility For Shimano Hollowtech II cranks
Praxis Works standard BSA English threaded Bottom Bracket is Shimano compatible. The 7075 T6 alloy cups feature CNC finishing and standard anodizing. Smooth and durable, the high-grade Enduro 2437 steel bearings are fully sealed and are a fantastic replacement BB for your Shimano drivetrain.Compatible with Shimano Hollowtech II cranksMFG Machined AluminiumBearing Enduro 2437 steel with high grade grease and fillSize & Use 68mm version for Road / 68/73mm version for MTNFrame Spec BSA English threaded framesCompatibility For Shimano Hollowtech II cranks
In the ever changing world of bottom bracket standards, Praxis aims to have a bottom bracket for pretty much any modern bike and crankset. The Specialized OSBB Conversion Bottom Bracket is suitable for Shimano Hollowtech II cranksets in 68mm Specialized OSBB bottom bracket shells.Compatible with Shimano Hollowtech II cranksets with 24mm spindlesCompatible with 68mm Specialized OSBB bottom bracket shellsHighly durable Enduro bearings are designed to spin freely and last well in harsh conditionsForged & machined aluminium cups are highly durable and easy to fitBuilt around high-quality Enduro steel cartridge bearings and forged and machined aluminium cups, Praxis bottom brackets are built to be strong, durable and not afraid of harsh conditions. The quality sealing keeps grime away from the bearings, while the cups construction mean they can be easily transferred between frames with no fear of damaging them. If you want a dependable bottom bracket that is supremely reliable and easy to install, look no further.
In the ever changing world of bottom bracket standards, Praxis aims to have a bottom bracket for pretty much any modern bike and crankset. The BB/PF30 Conversion Bottom Bracket is suitable for Shimano Hollowtech II cranksets in 68mm BB30/PF30 bottom bracket shells.Compatible with Shimano Hollowtech II cranksets with 24mm spindlesCompatible with 68mm BB30/PF30 bottom bracket shellsHighly durable Enduro bearings are designed to spin freely and last well in harsh conditionsForged & machined aluminium cups are highly durable and easy to fitBuilt around high-quality Enduro steel cartridge bearings and forged and machined aluminium cups, Praxis bottom brackets are built to be strong, durable and not afraid of harsh conditions. The quality sealing keeps grime away from the bearings, while the cups construction mean they can be easily transferred between frames with no fear of damaging them. If you want a dependable bottom bracket that is supremely reliable and easy to install, look no further.
In the ever changing world of bottom bracket standards, Praxis aims to have a bottom bracket for pretty much any modern bike and crankset. The T47 IB - Shimano 24mm Bottom Bracket is suitable for Shimano Hollowtech II cranksets in T47 IB (internal bearing) 85.5mm road bottom bracket shells.Compatible with Shimano Hollowtech II cranksets with 24mm spindlesCompatible with T47 IB 85.5mm road bottom bracket shellsHighly durable Enduro bearings are designed to spin freely and last well in harsh conditionsForged & machined aluminium cups are highly durable and easy to fitBuilt around high-quality Enduro steel cartridge bearings and forged and machined aluminium cups, Praxis bottom brackets are built to be strong, durable and not afraid of harsh conditions. The quality sealing keeps grime away from the bearings, while the cups construction mean they can be easily transferred between frames with no fear of damaging them. If you want a dependable bottom bracket that is supremely reliable and easy to install, look no further.