Splined Bottom Bracket Designed For Use With Shimano Road Octalink CranksetOversize Bb Spindle - Large 22 Mm Diameter Chrome-Moly Hollow Pipe Billet Spindle Reduces Weight, Increases Strength And RigidityOctalink Splined Axle/crank Arm Interface - Results In A More Rigid Crank Assembly Compared To Square Tapered SpindleMaintenance-Free Sealed Cartridge Design Prevents Corrosion And Is Easy To InstallAluminium AdapterAverage Weight 250 G

Complete XTR level press-fit bottom bracket assembly for Shimano HollowTech II MTB cranksCups are made from fibre reinforced polymer material which reduces the risk of frame noise and damageSet includes left and right hand cups, 2.5 mm spacer, inner cover, and inner O-ringsSealed cups keep out dirt and waterMaintenance freeCompatible with 89.5 mm (with 2.5 mm spacer) and 92 mm shells42 mm cup diameterEasy press-fit installation

We at SRAM saw the opportunity to make a better press fit system where all the best from BB30 and PressFit bottom brackets would be combined into one captivating package. PressFit 30 will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. This bottom bracket is designed for 30mm spindle cranksets.Frames will need a 46mm inner-diameter bottom bracket shell to accommodate this system. PressFit 30 for road will require a 68mm wide shell while PressFit 30 for MTB will require a 73mm wide shell.•Easy installation•PressFit cups for lighter weight•Narrow Q-factor and more ankle clearance•Integrated gutter seal to prolong life•Integrated adjuster•30mm spindle diameter•40x30x7 larger bearing size•Bearings: Ceramic as standard

Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag. We’ve designed a fresh cup forging for a high-end look. A new standard in external bearing performance.GXP’s Gutter Seal design cuts friction and weight—improving both feel and performance.Other systems rely on side-loaded bearings to eliminate play, causing bearing wear. GXP captures the left-side bearing between the spindle and the left crankarm and allows the drive-side bearing to float axially on the spindle. There's no need to side-load bearings during adjustment. No excess wear. And a much simpler installation. Just tighten to the proper specifications and you're ready to roll, worry-free. GXP's two bicycle-specific cartridge bearings and eight seals ensure a smooth, long-lasting ride. Our new Gutter seal system takes a two stage approach in directing contaminates away from the bearings providing longer bearing life. GXP s Gutter Seal design also reduces friction, 35% less drag than the current GXP BB, improving rider feel and performance. Gutter seal system has deeper installation tool grooves which provide stability and support while applying torque to the adapter cups. The design and material choice has dropped 15g out of the GXP BBs.

Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag. We’ve designed a fresh cup forging for a high-end look. A new standard in external bearing performance.GXP’s Gutter Seal design cuts friction and weight—improving both feel and performance.Other systems rely on side-loaded bearings to eliminate play, causing bearing wear. GXP captures the left-side bearing between the spindle and the left crankarm and allows the drive-side bearing to float axially on the spindle. There's no need to side-load bearings during adjustment. No excess wear. And a much simpler installation. Just tighten to the proper specifications and you're ready to roll, worry-free. GXP's two bicycle-specific cartridge bearings and eight seals ensure a smooth, long-lasting ride. Our new Gutter seal system takes a two stage approach in directing contaminates away from the bearings providing longer bearing life. GXP s Gutter Seal design also reduces friction, 35% less drag than the current GXP BB, improving rider feel and performance. Gutter seal system has deeper installation tool grooves which provide stability and support while applying torque to the adapter cups. The design and material choice has dropped 15g out of the GXP BBs.

Gutter Seal Technology drastically improves sealing against the elements while reducing seal drag. We’ve designed a fresh cup forging for a high-end look. A new standard in external bearing performance.TechnologyGXPGXP’s Gutter Seal design cuts friction and weight—improving both feel and performance.• Gutter Seal Technology• Improved tool engagement• Sealed cartridge bearings• English thread

Compatible with 68mm or 73mm English threaded bottom brackets in frames with 68mm or 73mm PressFit 30 shells.

We've been making our own sealed bearings here at King for over 32 years and never has there been a component that benefited more from their strength and durability than the bottom bracket. Yes, the Chris King bottom bracket is here and ready to take on the most challenging conditions your cycling adventures can deliver. The Chris King bottom bracket is specifically designed for Shimano and Sram Style-compatible external type crank/bottom bracket systems and delivers every benefit you've come to expect from King and in the wide array of colors only King can do. An available grease injection tool allows the bearings to be purged of existing grease and debris and new grease run through. What better way to maximize the life of your bearings than to do routine maintenance? Especially when it's this easy. Racers take note! With the Chris King bottom bracket and injection tool, you can train day-to-day with a durable high-viscosity grease and race with a light, fast-rolling low-viscosity grease or oil. Imagine your current Friday night leg-shaving ritual finishing with a few minutes in the garage to get your bike as smooth as you are.

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

Splined bottom bracket for use with Shimano Octalink chainsetsOversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidityOctalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindleES51 has anti-corrosion treatment inside hollow spindleSealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and waterCartridge design allows easy installation without adjustmentAluminium adapterAverage weight 262 grams

HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency. HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability.

HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency. HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability.

A variant of the external bottom bracket, PressFit cut weight by up to 40 grams and provide easier installation by allowing you to press the bearing cups into the frame instead of threading them. There's no change to the crank — spindle length and diameter remain the same.