R7 Wiki | R7 1x14 Wireless Groupset

Quick Compatibility Check

Confirm your frame meets the installation requirements

Your cassette system

14-speed system 13-speed system

☐ Freehub is HG standard ☐ UDH-compatible frame ☐ WHALEROAD dedicated 14-speed derailleur hanger ☐ Chainstay length RC ≥ 415 mm

Select a cassette system and check the boxes to see the result

Installation Overview

Estimated time: 2–3 hours

Progress

0/5 Steps

①

Prep & Pre-Check

Gather tools and parts, charge the rear derailleur battery, and set up your workspace.

✓ Battery charge check
✓ Tool inventory
✓ Workspace setup

Power Prep (Priority)

Before starting, charge the rear derailleur battery and confirm the shifter batteries are healthy.

Workspace

Choose a spacious, well-lit, clean indoor area. Hydraulic systems are extremely sensitive to dust—keep your work surface as clean as possible.

Stable Support

We recommend using a bike repair stand to suspend the bike, keeping wheels and the drivetrain free for shifting and brake adjustments.

②

Cockpit & Brake System

Install levers and calipers, route hoses internally, cut to length, and connect.

✓ Lever install
✓ Caliper install
✓ Hose connection

Install Brake Calipers

Based on frame specs (flat-mount/post-mount) and rotor size, select the correct adapter.
Use a 4 mm hex key to pre-install the caliper. Tighten bolts loosely so the caliper can move slightly for alignment.
Keep the plastic pad spacer inside the caliper to prevent pistons from popping out if the lever is squeezed accidentally.

Never squeeze the lever dry: pressing the brake lever without a rotor or pad spacer installed will over-extend the pistons, causing leaks or failure to retract.

Hose Connection Essentials

Measure: Turn the handlebar to its extreme positions and leave enough hose length.
Cut square: Use a dedicated hose cutter. Scissors are strictly prohibited.
Insert barb: Use a dedicated hose barb press tool and press vertically until fully seated.
Tighten: Use an 8 mm open-end wrench, torque approximately 8 N·m.

③

Rear Derailleur & Pairing

Mount the rear derailleur, complete wireless pairing, and confirm motor response.

✓ Compatibility check
✓ Rear derailleur install
✓ System pairing

Critical Compatibility Check

Cassette System	Required Conditions
14-speed	UDH hanger + RC≥415 mm + 11-speed SH freehub
13-speed	RC≥415 mm + 11-speed SH freehub

Mount the Electronic Rear Derailleur

Check that the hanger is straight—use a hanger alignment gauge if possible.
Apply grease to the rear derailleur mounting bolt threads.
Thread in with a 5 mm hex key, then tighten with a torque wrench to 12 N·m.

Do not overtighten—excessive torque can strip the threads on an alloy hanger.

System Pairing Steps

✓ Pre-paired at factory — Your R7 shifters and rear derailleur are already paired out of the box. Use the WHALEROAD app only if you need to add or re-pair components.

1

Open the WHALEROAD app, tap Get Started, and make sure your phone's Bluetooth is on.

2

Long-press the rear derailleur function button for 5 seconds until the LED flashes green. The app will auto-detect it — confirm to connect.

3

In the app, go to Manage Device and select Add Shifters.

4

Long-press a shifter function button for 5 seconds until the LED flashes green. The app will auto-detect it — confirm to connect. Repeat for the second shifter.

5

Verify that the app shows all components as connected. Press a shifter button to confirm the derailleur shifts. Pairing complete.

④

Drivetrain Assembly

Install the bottom bracket, crankset, cassette, and wheels, then connect the chain.

✓ Bottom bracket install
✓ Crankset install
✓ Chain connection

Install Bottom Bracket & Crankset

Clean the bottom bracket threads/shell faces and apply grease.
For threaded types, mind the left/right thread direction. For press-fit, use the correct press tool—never hammer.
Crankset main bolt torque: 40–50 N·m.
Adjust the preload collar to remove play, then tighten the pinch bolt(s).

Chain Installation Key Points

Use a chain tool compatible with 13/14-speed chains.
Set chain length based on the rear derailleur position (big-big + 2 links method).
Use a quick-link pliers or compatible tool to install the chain.

⑤

Tuning & Final Check

Adjust limit screws, perform a full-bike torque review, and run function tests.

✓ H/L/B adjustment
✓ Torque review
✓ Function test

Shifting Tune

Adjust limit screws and electronic micro-tuning. See the Tuning chapter for details.

Full-Bike Torque Review

Component	Torque
Shifter clamp	6–8 N·m
Rear derailleur mount	12 N·m
Crank spindle	40–50 N·m
Hose olive nut	8 N·m

Tools & Supplies

Hex Key Set

2 / 2.5 / 3 / 4 / 5 / 6 / 8 mm

Essential

Torque Wrench

Range 2–20 N·m

Essential

Torx Key Set

T10 / T25 / T30

Essential

Bleed Kit

Funnel + syringe + hoses

Essential

Open-End Wrench

8 mm

Essential

Hose Cutter

Dedicated cutter

Essential

Barb Press Tool

Dedicated press

Essential

Bottom Bracket Tool

Match frame BB standard

Essential

Cassette Lockring Tool

Standard splined type

Essential

Chain Tool

13/14-speed compatible

Essential

Quick-Link Pliers

Universal type

Recommended

Safety Gear

Nitrile gloves + safety glasses

Essential

Mineral Brake Fluid

Compatible mineral oil (no DOT)

Essential

Assembly Paste

For carbon contact surfaces

Recommended

Category	Tool Name	Recommended Spec	Purpose	Priority
General	Hex key set	2–8 mm	Most frame bolts	Essential
	Torque wrench	2–20 N·m	Precise tightening control	Essential
	Torx keys	T10 / T25 / T30	Rotor and bleed-port screws	Essential
	Screwdrivers	Phillips / flat	Adjusting limit screws	Essential
Hydraulic Disc	Bleed kit	Funnel + syringe + hoses	Bleeding and purging air	Essential
	Open-end wrench	8 mm	Tightening hose olive nut	Essential
	Hose cutter	Dedicated cutter	Clean, square cuts	Essential
	Barb press tool	Dedicated press	Pressing barb into hose	Essential
	Piston reset tool	Flat screwdriver substitute	Resetting pistons after pad swap	Recommended
Drivetrain	Bottom bracket tool	Match BB standard	Installing bottom bracket	Essential
	Cassette lockring tool	Standard splined	Installing cassette	Essential
	Chain whip	Chain whip	Holding cassette during removal	Essential
	Chain tool	13/14-speed compatible	Cutting chain to length	Essential
	Quick-link pliers	Universal type	Opening/closing quick link	Recommended
Consumables	Safety gear	Gloves + glasses	Protection from mineral oil	Essential
	Mineral brake fluid	Compatible mineral oil	For brake system	Essential
	Assembly paste	Carbon-specific	Carbon contact surfaces	Recommended

Pairing Visual Guide

Status: Not started

Rear Derailleur

APP

Shifter

1

Open WHALEROAD APP

Open the WHALEROAD app, tap Get Started, and make sure your phone's Bluetooth is turned on.

APP: Get Started

2

Pair Rear Derailleur

Long-press the rear derailleur function button for 5 seconds until the LED flashes green. The app will auto-detect it — confirm to connect.

APP: Pair Rear Derailleur

3

Add Shifters in APP

In the app, go to Manage Device and select Add Shifters.

APP: Add Shifters

4

Pair Shifter(s)

Long-press a shifter function button for 5 seconds until the LED flashes green. The app will auto-detect it — confirm to connect. Repeat for the second shifter.

APP: Pair Shifter

5

Verify & Complete

Check that the app shows all components as connected. Press a shifter button to confirm the derailleur shifts. Pairing complete!

APP: All Connected

Your R7 shifters and rear derailleur are already paired at the factory. Use this guide only if you need to add or re-pair components.

Make sure the rear derailleur battery is charged. Low battery is the most common cause of pairing failure.

Critical Safety Warnings

Never Squeeze the Lever Dry

Pressing the brake lever without a rotor or pad spacer installed will over-extend the pistons, causing leaks or failure to retract. Always keep the plastic pad spacer in the caliper during installation.

Never Mix Brake Fluids

Use only compatible mineral oil from a reputable bicycle brake manufacturer. DOT fluid or non-specified oils are strictly prohibited. Even different brands of mineral oil may be incompatible—keep bleed tools separated accordingly.

Olive Head Is Single-Use

Once tightened, the olive head cannot be reused. If you need to disconnect the hose, cut off the old fitting and replace it with a new one.

Do Not Overtighten the Rear Derailleur

The rear derailleur mounting bolt torque is 12 N·m. Excessive torque can strip the threads on an alloy hanger.