Parts

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

Shimano BT-R1A External Di2 Battery - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

- 10-speed cassette sprocket - Offers a wide range of gearing options. - Lightweight sprocket carrier, it delivers smooth gear steps and precise shifting. - Ride anywhere with smooth and precise HG shifting

Shimano Deore M6000 CS-HG500-10 10-speed cassette. Combinations: - 11 – 25T: 11-12-13-14-15-17-19-21-23-25T - 12 – 28T: 12-13-14-15-17-19-21-23-25-28T - 11 – 32T: 11-12-14-16-18-20-22-25-28-32T - 11 – 34T: 11-13-15-17-19-21-23-26-30-34T

Shimano Deore M6000 Series 10-speed cassette. - Cogs: 11-13-15-17-19-21-24-28-32-36T

- Large pedal platform - Lower platform height for pedaling stability - Robust retention claws provide smooth engagement and release - Customize the entry and release tension settings - Strong, durable chrome-moly spindle with 8 mm hex wrench mount - Sealed mechanism - SM-SH51 Cleat included - 1.0 mm cleat spacer included - Binding: Dual sided - Cartridge axle - Cleat retention adjuster - Average weight: 342g - Optional cleat: SM-SH56 - Pedal Type: Off-Road (SPD)

Shimano Deore XT RT-MT800 Center Lock disc brake rotors feature an advanced heat-dissipating design. - Rotor construction uses Shimano Freeza technology to boost heat dissipation and reduce fade - Quick and easy installation with spline mount and lock ring (included) - Compatible with metal and resin pads

Shimano Deore XT SM-RT86 6-Bolt rotors feature a 3-layer construction with an aluminum core and two stainless steel outer layers. Reducing rotor surface temperature approximately 100 degrees Celsius compared to all-steel rotors, the result is better braking performance and reduced brake fade. - Aluminum spider - Includes rotor fixing bolts and locking washers

Shimano's Di2 electric drivetrain takes shifting to the next level. Two Di2 Battery Chargers are available. Choose the model designed for your system's battery. An additional power cable is required for the external-style battery charger (sold separately). These chargers fully charge the battery in 90 minutes.

Shimano Dura-Ace 9000 11-Speed Chainrings. - Chainring BCD: 110 Shimano Asymmetric - Color: Black - Defined Color: Black - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Inner

Shimano's M520s are affordable clipless pedals that are easy to enter and exit, and built to last. They boast dual-sided Shimano SPD bindings, which make them perfect for mountain bikers or roadies who prefer wearing walkable shoes with recessed cleats. The bindings are adjustable for dialing in the perfect entry and exit tension, and they have an open, mud-shedding design that prevents clogging. Chromoly axles and sealed bearings add tons of durability. - 380 grams (pair)

Shimano's M540s are race-ready clipless pedals that don't require a team budget. These rugged, light beauties feature dual-sided Shimano SPD bindings that are easy to enter and exit and deliver excellent power transfer and maneuverability. The bindings are adjustable for dialing in the perfect tension and these sweet pedals have an open mud-shedding design to prevent clogging. Plus, the M540s are built to last with chromoly axles and sealed-cartridge bearings. - 352 grams (pair)

Shimano's PD-R550 SPD-SL Pedals offer wide, stable platforms for great support and stability when you're out on the road. An extra-wide platform maximizes power transfer. Durable stainless steel tread plates reduce flex and pedal body wear. Wide bearing placement provides uniform load distribution for miles and miles of riding. - 310 grams (pair)

PD-T421 FEATURE - CLICK'R binding on one side and flat pedal on the other - Customize the entry and release tension settings - Integrated reflector - Easier to catch the binding BENEFIT close - Versatile use - Longer life - Smart appearance - Weight: 418g - Easy entry and release - Better grip on flat side - Rider tune - Color: Black - Average weight: 418 g - Binding: Single Sided - Cleat included: SM-SH56 - Optional cleat: SM-SH51

Shimano's 11-speed SLX cassette features the same computer-designed shift profiles that have made Shimano shifting synonymous with speed and accuracy. - Series: SLX - Average Weight: 467g

Shimano's Tiagra Rapidfire Plus Shift Lever (2x10-speed) is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Model Number: SL-4700 - Series: Tiagra - Shift Lever Type: Rapidfire Plus - Cassette Compatibility: 10-speed - Front Shifting: 2-speed - Shift Cable Casing: OT-SP41

Shimano's Tiagra Rear Derailleur has everything you need for your drivetrain: 11-tooth pulleys for smooth, quiet chain movement, a light-action spring, and a wide outer-pivot design that increases rigidity for precision shifts every time.

Shimano's Tiagra Rear Derailleur GS (10-speed) is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Model Number: RD-4700-GS - Series: Tiagra - Cassette Compatibility: 10 - Maximum Sprocket: low sprocket: 34T / top sprocket: 12T (front double) / 20T low sprocket: 32T / top sprocket: 12T (front triple) - Minimum Sprocket: low sprocket: 28T / top sprocket: 11T (front double) / 20T low sprocket: 25T / top sprocket: 11T (front triple) - Maximum Front Difference: 16T (front double) / 20T (front triple) - Total Capacity: 39T (front double) / 41T (front triple)

Shimano's Tiagra Rear Derailleur SS (10-speed) is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Model Number: RD-4700-SS - Series: Tiagra - Cassette Compatibility: 10-speed - Maximum Sprocket: low sprocket: 28T / top sprocket: 14T - Minimum Sprocket: low sprocket: 25T / top sprocket: 11T - Maximum Front Difference: 16T - Total Capacity: 33T

The uninterrupted shifting experience of the Shimano Ultegra CS-R8100 12-speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. - Refined 12 step gear combination provides peak efficiency and accelerating performance for every racing situation - Faster, smoother shifts under maximum pedaling force - Compatible with 12-speed and road 11-speed freehub body

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

The Shimano Deore XT SL-M8100-IL shifters is designed for 2 x 12 drivetrain systems. - I-SPEC EV creates a clean and action-optimized cockpit with a wider adjustment range to suit riders of various styles, preferences, and body types - Ergonomic design, quicker lever access, and light operation enhance rider comfort and concentration - Shift both up and down with a single lever - Instantaneous push and pull movements

The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 2 x 12-speed MTB drivetrains. - Offers fast and shockless shifting - The low-profile design includes a bumper added to the derailleur pulley cage - Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain - Includes large, 13T pulley - Long cage is designed to be used with 2 x 12 drivetrain systems - Rear Derailleur Mount Type: Shimano Rear Direct Mount - Drivetrain Speeds: 12 - Cage Length: Long - Chain Wrap Capacity (teeth): 45 teeth - Largest Cog: 45 - Weight: 284 g - Rear Der/Shifter Compatibility: Shimano Mountain

- XT-grade 6-bolt rotor - Stainless steel braking surface for long lasting durability - Cutouts help with mud clearing and cooling - Large forged alloy spider supports rotor surface, increasing rigidity and heat dissipation while reducing weight - Comes complete with mounting hardware

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

SRAM's CenterLine rotors are light-weight, quiet, smooth and robust, featuring a two-piece design with an aluminum center and steel brake track.

Stainless steel rotor designed for smooth and quiet braking with any disc brake caliper.

The CenterLine design provides a smooth, consistent, and quiet running braking surface. Rounded edges make for easier wheel installs and are UCI-compliant. - Compatible with both road and mountain bike brakes - Rounded edges are UCI-compliant and allow for easier wheel installs - Hub interface: CenterLock - Rotor Type: Centerline

- Unique link shape creates a lighter, quieter, stronger chain. - Flattop technology allows for a narrower chain with quieter operation and increased strength and durability - Hard Chrome plated inner and outer plates for faster and more precise shifts