Features

• GRX 815 series 1x11-speed Di2 shift/hydraulic disc brake components sold as a partial kit
• Contains: Right Di2 Shift/Hydraulic Brake Dual Control Lever and Caliper | Left Dual Control Di2/Hydraulic Lever and Caliper | Di2 Rear Derailleur for 1x use, | 11s Chain | 11s 11-40T or 11-42T Cassette; Di2 Battery, Di2 Battery transformer with USB cable
• You will still need: GRX 1x crankset, 24mm ID Shimano compatible Bottom Bracket that fits your frame | 2 Disc Brake Rotors (RT800 or equivalent) in your desired size(s) or another brand/model of comparable rotors, all SD50 Di2 wiring, Junction A box
• GRX has been strength and durability optimized for the rough surfaces, debris, dust, and rigors of gravel use
• Levers feature ergonomic and tactile shapes and features for greater control, rider connection
• HYPERGLIDE improves shifting both up and down the cassette, even under maximum pedaling load
• Drivetrain features optimized progressive gearing options engineered for performance, speed without sacrificing drivetrain efficiency

Detailed Group Contents

• GRX ST-RX815 Di2 Right & Left Dual Control Lever sets with Disc Calipers (or individual lever, caliper, and hose kit components
• 11-spd Dual Di2 Shift / Hydraulic Disc Brake levers for GRX drivetrains
• With Di2, even a 1x11 set-up features both side Di2 shift levers as you can customize lever functions in Di2 e-Tube app
• Two SD50 ports for e-Tube wiring
• Hood and lever shapes feature gravel specific ergonomics, texture
• Raised hood head prevents hand misalignment and slippage
• Anti-slip lever texture and brake lever coating
• Recessed finger notch prevents upward slipping
• GRX Di2 specific lever shape and design-won't match GRX or non-GRX 800 series levers
• Brake lever features ServoWave action, Reach Adjust, Free Stroke
• Faster initial bite point followed by wider control area; modulate braking forces more easily, precisely
• Calipers have refined design, improved performance from Servo Wave technology of brake lever system
• Mineral oil fluid system, with easy to service/bleed design
• Flat Mount BR-RX810 hydraulic brake caliper switch IceTech finned disc pads
• SM-BH90-JK-SSR hydraulic hose and fittings
• GRX RD-R817 Di2 Rear Derailleur
• Silent and uninterrupted rear shifting on rough terrain
• Longer cage and different pulley wheel sizing; for 1x Di2 drivetrain only
• One SD50 e-Tube wiring port
• 11T Guide and Tension pulley wheels
• Shimano Shadow+ design is compact to the frame; with clutch tensioner
• Adjustable chain stabilizer prevents chain slapping and drops
• Gravel-tuned clutch tension for rough surfaces; with on/off feature
• Four fluoric coated link bushings
• Compatible with Shimano LINKGLIDE, HG 11-speed chains
• 31T total capacity, 40-42T low sprocket, 11T top sprocket, 11 pulley teeth
• Compatible with 11-40, 11-42 11-speed Shimano MTB cassettes
• CS-M8000 11-Speed Cassette Deore XT, 11-40T
• Two aluminum spider arms deliver strength, at lighter weight, with fewer individual cogs
• DYNA-SYS11 cassette delivers precise shifting even in the most demanding gearing situations
• Rhythm step gear progression offers smooth, smartly progressive cog sizes for the range
• Smaller 10 cogs are steel, nickel-plated for longevity, corrosion resistance; large is anodized aluminum to save weight
• Dual aluminum spiders (5-block, 2-block; plus 5 single cogs, necessary spacers), HG lockring
• Compatible with HG11 Mountain and HG11 Road (with spacer) freehub bodies
• Cogs: 11-40T: 11-13-15-17-19-21-24-27-31-35-40**T (**aluminum)
• CS-M7000 11-Speed SLX Cassette, 11-42T
• HyperGlide cassette incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting
• DYNA-SYS11 maximizes rhythm with “rhythm step” gears in the most frequently used range
• Chain compatibility: LinkGlide, HG 11-speed
• Aluminum spider for 3 largest pinned cogs to maintain stiffness and strength at lighter weight
• Compatible with HG11 Mountain and HG11 Road (with spacer) freehub bodies
• Cogs: 11-42T: 11-13-15-17-19-21-24-28-32-37-42**T (11-37 cogs are Steel, ** 42 is aluminum)
• CN-HG701-11 XT/Ultegra Chain
• Directional 11-speed chain delivers smooth and reliable shifting performance
• SIL-TEC treatment on the roller link plates and pin link plates for increased durability
• QUICK-LINK (SM-CN900-11) Single-use master link
• Di2 E-Tube BT-DN110 Internal Battery
  • Waterproof Di2 battery designed for Di2 compatible seatpost installation with 11-speed E-Tube system
  • Requires Junction A Box for charging with SM-BCR2 Battery Charger
  • 1.5 hour recharge time, run time varies with use/conditions
  • Lithium Ion cell at 500mAh, 3.7w delivering 7.4 volts.
  • No need to remove your seatpost to charge battery when wired properly
  • Comes with 2-piece plastic mount, washers, and lockring
• Di2 E-Tube SM-BCR2 Battery Charger
• Transformer allows for charging a dead battery in 1.5 hours
• Includes USB (SM-USB1) power adapter
• E-Tube compatible - plugs into Junction A box
• No need to remove the battery with proper wiring
• Can use with PC direct to update Di2 component firmware and change system functions
• Options: Cassette in XT 11-40T or SLX 11-42T; see selection menu for availability
• Finish: GRX Di2 Gray
• Sold as a package- absolutely NO exchanges, trades, omissions; will not be broken up for sale

We recommend purchasing a 100ml bottle of Shimano Hydraulic Mineral Oil (Excel# 115703) for assembling/bleeding the lever, caliper, and hose system. For those seeking wireless ANT+ or BLE wireless communication to the Di2 system, purchase the Di2 E-Tube D-Fly EW-WU111 Wireless Transmitter (Excel#117276) and integrate it into the wiring set-up.