Top 9 GRX Di2 Groupset – Rear Bike Derailleurs

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1. SHIMANO

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Rear, SHIMANO GRX RD-RX817 Di2 Rear Derailleur Black

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SHIMANO #ad - Gearing: 1x11. Cassette range: 11-42T. Material: alloy. Capacity: 31T. Compatibility: Shimano GRX Di2.
BrandSHIMANO #ad
ManufacturerShimano #ad
Height5 Inches
Length6 Inches
Weight1.05 Pounds
Width7 Inches
Part NumberIRDRX817
ModelShimano

2. SHIMANO

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Braze-On, SHIMANO GRX FD-RX815 Di2 Front Derailleur Black

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SHIMANO #ad - Compatibility: shimano grx di2 shifters, Shimano GRX 11-speed cranksets, Shimano 11-speed chains. Material: aluminum. Gearing: top gear teeth 46 - 50t, capacity 17t. Mount: braze-on. Recommended Use: gravel.
BrandSHIMANO #ad
ManufacturerShimano #ad
Height4 Inches
Length6 Inches
Weight0.65 Pounds
Width7 Inches
Part NumberIFDRX815F
ModelShimano

3. PRO BIKE TOOL

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PRO BIKE TOOL 1/4 Inch Drive Click Torque Wrench Set – 2 to 20 Nm – Bicycle Maintenance Kit for Road & Mountain Bikes, Includes Allen & Torx Sockets, Extension Bar & Storage Box

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PRO BIKE TOOL #ad - Right tools for the job – includes hex: h2, h5, h8, h4, h6, h10. This helps prolong the life of high-performance components and prevents damage from over tightening. Applying too little torque can lead to bolts working loose or not doing their job. Important: at low nm settings under 5 Nm the click can be ‘subtle’.

Torx: t10, t25, t30 socket / key set and 100mm extension bar for reaching concealed bolts. Professional quality – each hand tool is fully calibration tested for accuracy to iso 6789-2:2017 and din en iso 6789-1:2017-07 requirements and test methods for design conformance testing, quality conformance testing and recalibration procedure. Helps ensure that the fittings on your bike are tightened to the correct torque, seat clamps, and that clamping forces are distributed evenly across clamping surfaces. Safe & easy to use & read – smooth and precise operation.

Reversible 72-tooth ratchet head measures torque in clockwise and counter clockwise directions. Our 1/4-inch drive dual-direction torque wrench driver removes the guesswork, making it easy to follow the manufacturer’s recommended settings. Bespoke protective molded case to keep the adjustable torque wrench and tool bits stored safely, H3, H2. 5, also includes ‘storage’ section inside case to store bolts when using the wrench. Engage and release bit instalment button. Between 5 & 20 Nm the click will be stronger.
BrandPRO BIKE TOOL #ad
ManufacturerPro Bike Tool #ad
Height0.9 Inches
Length8.7 Inches
Weight1.69 Pounds
Width0.9 Inches
Part NumberTWS-220
ModelTWS-220

4. SHIMANO

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Shimano Ultegra R8000 Cassette

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SHIMANO #ad - Carrier Material: aluminum. Freehub type: Shimano 11-speed road. Cog material: nickle-plated steel. Cog sizes: 11 x 25t, 11 x 32t, 11 x 30t, 11 x 28t, 12 x 25t, 14 x 28t. Claimed weight: 11x25 8. 2oz 232g, 11x28 8. 9oz 251g, 11x30 9. 5oz 269g, 12x25 8. 6oz 243g, 14x28 106oz 300g.
BrandSHIMANO #ad
ManufacturerShimano #ad
Height0.39 Inches
Length0.39 Inches
Weight0.85 Pounds
Width0.39 Inches
Part NumberICSR800011132
ModelCSR8000132

5. SHIMANO

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Shimano PD-R8000 Pro-Level Road Bike Pedal

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SHIMANO #ad - Customize your pedal feel: adjustable entry and release tension settings allow you to make it easier or harder to clip in and out. Lightweight & durable: Carbon composite body and stainless steel body plate create a lightweight and hard-wearing pedal. The pd-r8000 is a pro-level road Bike Pedal: Professional-level performance for all riders. Superior power transfer: Wide bearing placement and extra-wide platform for uniform load distribution and efficient power transfer. Trickle-down technology: Boasts features from the top of the line Dura-Ace pedals.
BrandSHIMANO #ad
ManufacturerShimano #ad
Height2.36 Inches
Length8.66 Inches
Weight0.99 Pounds
Width4.72 Inches
Part NumberPDR8000
ModelPDR8000

6. Garmin

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On-Device Workout Suggestions, ClimbPro Pacing Guidance and More 010-02424-00, Garmin Edge® 1030 Plus, GPS Cycling/Bike Computer

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Garmin #ad - The ultimate gps cycling computer with 3. 5" color touchscreen display combines navigation, performance, cycling awareness and smart connectivity. Get training guidance by syncing structured indoor or outdoor workouts to your device from the Garmin Connect app or other apps, and Flow, including TrainingPeaks and TrainerRoad. Track jump count, jump distance and hang time with mountain bike MTB dynamics; other MTB features include Grit, which rates the difficulty of a ride, which measures how smoothly you descend a trail so you have a score to beat next time.

Receive on-device ride and workout suggestions based on your current training load and VO2 max When paired with compatible sensors. Manage your efforts on long climbs with the ClimbPro feature, which shows remaining ascent and grade when you're climbing while following a route or course. Get ready to ride without the fuss with prepopulated custom ride profiles based on your previous Edge computer, your ride types or your sensors.

Get inreach satellite communicator compatibility active satellite subscription for inReach device required. Cycling awareness features give loved ones peace of mind; incident detection and assistance — which send your location to emergency contacts when paired with a compatible smartphone, feature limitations exist. Explore more with the ability to pause off-course notifications, then get directions back to the route when you're ready to resume. Power your longest rides with up to 24 hours of battery life Battery life may vary depending on usage; works with the Garmin Charge power pack, so your Edge cycling computer can last up to 48 hours.
BrandGarmin #ad
ManufacturerGarmin #ad
Height5.47 Inches
Length2.44 Inches
Weight0.27 Pounds
Width5.47 Inches
Part Number010-02424-00
Model010-02424-00
Warranty1 year limited warranty

7. SHIMANO

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SHIMANO Dura-Ace Di2 Battery

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SHIMANO #ad - The high performance battery will keep you bike shifting for an average of 1000 miles per charge. Lithion-ion 7. 4v technology is extremely reliable. Fits any road bike & has a quick release for easy charging.
BrandSHIMANO #ad
ManufacturerShimano #ad
Height1.5 Inches
Length5.5 Inches
Weight0.15 Pounds
Width3.25 Inches
Part NumberSH4207
Model142350

8. SHIMANO

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Braze-On, SHIMANO Ultegra Di2 FD-R8050 Front Derailleur Gray

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SHIMANO #ad - Mount type: braze-on. Claimed weight: 4. 7oz 132g. Material: aluminum. Compatibility: Shimano E-Tube Di2. Gearing: top gear 46-53T.
BrandSHIMANO #ad
ManufacturerShimano #ad
Height4 Inches
Length6 Inches
Weight0.55 Pounds
Width5 Inches
Part NumberIFDR8050F
ModelShimano

9. SHIMANO

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SHIMANO Dura-Ace Di2 SW-R9150 Remote Satellite Shifters Black, Set

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SHIMANO #ad - Recommended use: shifting with Shimano Di2 drivetrain. Type: dura-Ace Di2. Manufacturer Warranty: 3 years.
BrandSHIMANO #ad
ManufacturerShimano Cycling #ad
Height3 Inches
Length6 Inches
Weight0.14 Pounds
Width4 Inches
Part NumberISWR9150
ModelShimano