Cranksets/Chainrings/Bottom Brackets

Shimano Altus M311 cranksets provide durability and reliable shifting for triple chainring drivetrains. - Hyperdrive SG-X chainrings - 7/8-speed compatible - Spindle interface type: Square Taper JIS

Shimano Acera FC-M361 cranksets feature sturdy construction, reliable shifting, and replaceable chainrings. - Spindle Interface type: Square Taper JIS

Compared to the power transfer of the conventional square taper spindle, the 8-splined OCTALINK interface that connects the bottom bracket and crankset increases the strength and rigidity for the entire assembly.

Shimano BB-ES51 Octalink V2 Bottom Brackets - Fits Shimano Octalink V2 Spline Cranksets - Crankarm fixing bolts not included

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

Shimano BB-UN300 Square Spindle Bottom Brackets

• Fits JIS square-taper cranksets
• Crankarm fixing bolts sold separately
• Hollow spindle

Grow your confidence riding hard over the rough stuff with this Shimano CUES FC-U4000-1 crankset's wide-range gearing and seamless pedaling.

• Dynamic Chain Engagement+ special gear tip shape improves chain engagement and retention for smooth riding over rough terrain
• Durable and lightweight aluminum crank arms
• For frames with 68/73mm bottom bracket shells
• BB-UN101 LL123 bottom bracket recommended (Sold separately)
• Compatible with LINKGLIDE AND HG 11-speed chains

Shimano Dura-Ace FC-R9200 chainrings are constructed with high-quality aluminum and are compatible with FC-R9200 and FC-9200-P 2x 12-speed cranksets. - Asymmetric 110 BCD - Compatible with HG 12-speed chains - Aluminum with anodized finish provides durability and light weight - Hollowglide technology provides high rigidity and cuts down on weight while maintaining strength - Offers better power transfer and quicker, more precise front shifting - 50t outer chainring is for use with 34t inner chainring - 54t outer chainring is for use with 40t inner chainring

The Shimano R9100 series crankset achieves the ultimate in optimal power transfer. It does this through a more reinforced outer chainring on its unique asymmetrical four-arm spider construction. - Chainring BCD: 110 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Outer

Shimano's new FC-RX810-2 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. The 2x11-speed crank is available in a 48-31T, 40T, and 42T chainring combination and 170, 172.5, and 175mm crank arm lengths. - Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires - Optimum gearing for mixed terrains and riding styles - Wide-range double - Gear combinations: 48-31T, 40T, 42T

The Shimano SLX FC-M7130 crankset for MTB features a rigid and lightweight design that boosts trail-riding enjoyment. The simplicity of a 1x drivetrain with the stability and compatibility of Hollowtech II technology. Designed for Super Boost+ spacing.

• 1x Chainring sold separately
• Hollow forged crank maximizes power transfer while limiting weight
• Shimano's Hollowtech II technology provides the best balance of stiffness, strength, weight and rotating performance
• Features 56.5mm chainline designed for Super Boost+ spacing
• 181mm Q-factor

Shimano Sora 9-Speed replacement chainrings gets your drivetrain operating smoothly again.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

The Tourney TY501 crankset provides crisp, reliable shifting for your triple chainring drivetrain. - Precision indexed shifting - 8/7/6-speed compatible - 3 crank length specification available - Precise chain line control - Light and reliable shifting - Versatile performance - Wide compatibility with multiple components - Quick and precise assembly

Shimano's BB-UN55 Square Spindle Bottom Brackets are the unofficial standard for English-threaded cartridge bottom brackets. Quality, value, and durability come together to keep you cranking for many, many miles. - Fits JIS Square-Taper Cranksets - Hollow spindle - Crankarm fixing bolts not included

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - For best shifting performance B-type rings only with B-type rings

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. It's available in English, Italian, or Press Fit models.

Shimano's Ultegra 6800 chainrings provide confidence-inspiring shifting and category-defining speed. Cold-forged aluminum comprises these super-stiff, hollow outer rings, and Shimano's unique system of ramps and pins means lightning fast shifts are at your command. - Bolt circle diameter: 4-bolt 110mm asymmetric - 50T pairs with 34T inner ring - 52T pairs with 36T inner ring - 53T pairs with 39T inner ring Inner rings sold separately

Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Original equipment on SRAM and Truvativ cranks, they also work well with other drive trains. - 7000 series aluminum provides strength and durability

A single chainring with a wide-range cassette is a wonderfully clean way to tackle so many disciplines, and we're the 1x leaders. Our Apex 1 Wide crankset features aluminum crankarms, a light and stiff DUB spindle, and elegant and secure direct-mount X-SYNC chainrings for flawless chain management. The wide chainline accommodates wider tires for any type of adventure.

- Single-ring drivetrain simplifies functionality and reduces weight
- Wide chainline crankset to fit the biggest gravel tires
- Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands
- Compatible with 135mm, 142mm and Boost rear spacing
- SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
- DUB bottom bracket adds durability and simplicity

The SRAM DUB bottom bracket series has a simple job— to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard

The SRAM DUB bottom bracket series has a simple job—to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard

The SRAM DUB bottom bracket series has a simple job— to connect crankarms and protect the smooth, long-lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. - Gutter Seal Technology drastically improves sealing against the elements - Sealed cartridge bearings - One oversized spindle to work across every bottom bracket standard - Significantly lighter than GXP system

Rugged durability comes naturally to the stamped steel Eagle T-Type direct-mount chainring. With bash guard compatibility and availability in three different tooth counts, there is ample room to refine and customize your bike’s look and feel. Features - Silver chainrings available in 8-Bolt direct mount - Black chainrings available in 3-Bolt direct mount - Stamped Steel construction - 30-34tT range - +3mm offset - Compatible with T-Type chains - Bashguards compatibility shared with GX and X0 T-Type chainrings.