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WHEELTOP EDS GeX Wireless 3-14 Speed Gravel Bike Rim Brake Derailleur Groupset

WHEELTOP EDS GeX Wireless 3-14 Speed Gravel Bike Rim Brake Derailleur Groupset

Derailleur Cage Length
$399.00
In Stock

Questions before you buy? Email us · We reply within 6 hours.

1-Year Warranty Official Wheeltop warranty included. Lifetime technical support from our team.
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Description
CHOHO hollow flat-top chain

Recommended pairing

WHEELTOP × CHOHO Hollow Flat-Top Chain

Pairs perfectly with WHEELTOP EDS — officially recommended. Fully hollow, flat-top plates keep the drivetrain smooth and quiet while cutting weight.

11-speed for Shimano 11s cassettes  ·  12-speed for Shimano and SRAM AXS 12s

View the CHOHO chain ›

This Listing is for the Rim Brake Kit

Need the hydraulic disc brake version instead? See our Disc Brake EDS GeX listing.

WHEELTOP EDS GeX

A fully wireless electronic groupset engineered specifically for gravel and mixed-terrain riding. Rechargeable derailleur battery, IP67 weather sealing, 3-14 speed compatibility — purpose-built for adventure beyond the pavement. Ships with an integrated rim brake shift lever that pairs with your existing rim brake calipers — no hydraulic lines, no caliper changes required. Rim brake frames only.

Rim Brake — Carbon Fiber Lever

Before you order, please check

Cassette

Up to 52T largest cog.

UDH frames

The derailleur mounts on a UDH hanger, not as a direct mount. A small number of frames may have clearance issues at the smallest cog.

WHEELTOP EDS GeX rim brake wireless electronic groupset — carbon fiber rim brake shift levers and rear derailleur

The Complete Shift Kit

Electronic Rear Derailleur — 75mm or 93mm Cage
Carbon Fiber Left Rim Brake Shift Lever
Carbon Fiber Right Rim Brake Shift Lever
Magnetic Charging Cable

Rear Derailleur & Rim Brake Shift Lever — Built for Gravel

Wheeltop EDS GeX rear derailleur

EDS GeX Electronic Rear Derailleur

Powered by a built-in rechargeable battery, the GeX delivers approximately 20,000 shifts per charge — months of riding between top-ups for most gravel cyclists. The magnetic snap-on charging connector makes top-ups effortless — no exposed port, no cover to lose. The IP67-rated sealed housing keeps mud, water, and grit out at all times. Available in two cage lengths: 75mm Medium Cage (up to 42T) or 93mm Long Cage (up to 52T). Operating temperature -20°C to 60°C.

Internal Chain Damper

A precision-engineered damping system suppresses chain slap and prevents dropped chains on rough gravel, washboard roads, and mixed-terrain surfaces — keeping your drivetrain quiet and controlled when the going gets rough.

Wheeltop EDS GeX rim brake carbon fiber shift lever

Integrated Rim Brake Shift Lever

The GeX shift lever unifies electronic gear control with a mechanical rim brake in one ergonomic lever body. Shift up or down with a button press — the derailleur responds with zero cable lag. The lever pairs with your existing rim brake calipers via standard caliper cable pull — no hydraulic lines, no caliper changes required. Carbon fiber lever body for a light, rigid feel.

Shifting

Wireless Electronic

No cables, instant actuation

Braking

Rim Brake

Mechanical, cable-pull

Lever

Carbon Fiber

Light, rigid body

Battery

CR2032

Tool-free coin cell swap

Carbon Fiber Lever — Light, Stiff, Precise

Every GeX Rim Brake build ships with the same carbon fiber lever body — a closer look at the material and the cockpit ergonomics.

Wheeltop EDS GeX carbon fiber rim brake lever body detail close-up

Carbon Fiber Body — Light, Stiff, Precise.

The lever body is high-grade cold-laminated carbon fiber — light and rigid, built to pair with your existing rim brake cable. The woven surface texture holds grip through wet descents without repositioning. The shift button sits exactly at thumb reach: index finger pulls the rim brake lever, thumb taps the shift button — no hand movement required.

One Lever, Two Functions.

Brake and shift from the same contact point. The lever body handles the cable-pull rim brake, the button handles the gear command — both without taking your fingers off the bar.

Left Lever

202.3g

Right Lever

214.6g

Surface Finish

Woven Carbon Weave

Braking

Rim, Cable-Pull

Full Control from Your Phone

Download the WHEELTOP app to pair, tune, and monitor your groupset — all from your handlebars.

WHEELTOP app searching for and adding the EDS GeX device
WHEELTOP app connecting and showing rear derailleur, left shifter and right shifter with battery levels

Step 1

Pair Your Components

Open the WHEELTOP app and tap + Start Using. It searches for nearby EDS GeX components over Bluetooth, showing a Searching for devices screen. Once your derailleur turns up, select EDS GeX and tap Finish — the app connects automatically, showing an Accessing data… prompt while it pairs — just keep the derailleur powered on and within range. When it's done, the home screen lists all three components — rear derailleur, left shift lever, and right shift lever — each showing its live battery reading, with the derailleur card also listing firmware version and MAC address.

Three Components, One Clean View

Rear derailleur, left shift lever, and right shift lever — all three show live charge level on the same home screen before every ride.

WHEELTOP app rear derailleur control screen and flywheel settings

Step 2

Set Your Cassette Speed

Open the RD tab to view current gear position, then tap Flywheel settings and select your cassette's brand and speed count so the derailleur knows exactly how many gears to index across.

Not Locked to One Speed Count

Unlike a mechanical derailleur built for one fixed speed, EDS GeX is fully configurable — set whatever speed count you're running, from 3-speed to 14-speed, directly in the app.

WHEELTOP app initial calibration screen

Step 3

Run Initial Calibration

Shift the rear derailleur onto the smallest freewheel position, tap Next step, then use the on-screen controls to fine-align the guide pulley under the smallest sprocket.

Guided On-Screen Alignment

No guesswork — use the on-screen +R / −L controls to nudge the guide pulley until it sits precisely under the smallest sprocket, then tap Finish.

WHEELTOP app fine-tuning screen and manual gear position parameters

Step 4

Fine-Tune Every Gear

If you notice any unevenness in the upshift or downshift, dial in the fine-tuning distance on the RD tab.

Need to Go Further?

Open Rear Derailleur Gear Parameters to view or manually edit the exact position value for any gear, then save — a level of precision cable systems simply can't match.

Other Settings

WHEELTOP app right and left shifter button customization screens

Customize Your Shift Buttons

Switch to the SW tab, then flip between the right and left lever to assign what each button does — the right lever has two buttons, the left has one. No two riders shift the same way.

Set It Once, Ride Your Way

Reassign either lever's buttons to trigger whichever shift function feels natural, or tap Factory restore to reset instantly.

WHEELTOP app ride screen and cycling record history

Ride Data and Turn-by-Turn Navigation

Switch to the ride screen for distance tracking and a full history of past rides — each entry logged with duration, average speed, and calories burned.

Live Stats While You Ride

Tap GO in the bottom bar to switch into the ride screen, where elapsed time, calories, pace, average heart rate, cumulative shifts, and climb update in real time alongside turn-by-turn map navigation.

WHEELTOP app firmware update screens for shifter and rear derailleur

One-Tap Firmware Updates

When a new firmware version is available, the app flags it on the home screen for the affected component — rear derailleur, left lever, or right lever — with the version jump and what changed.

Stay Current, Wirelessly

Tap Update now, then watch the transfer progress on screen — just make sure the component has enough charge before you start.

Two Riding Modes. One Tap to Switch.

WHEELTOP app Racing mode toggle screen

Switch between Standard and Racing mode directly in the app. Each mode is tuned for a different riding style — no tools, no hassle.

Standard Mode

Auto-sleep when idle. Lower power draw, longer battery life. Perfect for long gravel days.

Racing Mode

Always-on, maximum responsiveness. Boosted signal for noise-resistant shifting under pressure.

3-14
Speed compatibility
IP67
Derailleur · 1m submersion
20,000
Shifts per full charge
800mAh
Built-in lithium battery

Specifications

Full technical breakdown of the EDS GeX wireless electronic groupset — rim brake configuration.

Brand
WHEELTOP
Model
EDS GeX Gravel Bike Wireless Electronic Groupset — Rim Brake
Application
Gravel Bikes, Road Bikes, Mixed-Terrain Bikes — rim brake frames only, pairs with your existing rim brake calipers
Speed Range
3-14 Speed (1x only)
Cassette Compatibility
75mm Medium Cage (GS): 10-42T · 93mm Long Cage (SGS): 10-52T
Hanger Mount
Standard RD Hanger / UDH (Universal Derailleur Hanger)
Wireless Protocol
Bluetooth + ANT+ — pairs with cycling computers, displays gear and battery level
Derailleur Battery
800mAh built-in lithium · Magnetic snap-on charging · ~20,000 shifts/charge · up to 800 charge cycles
Shifter Battery
CR2032 coin cell (tool-free replacement)
Riding Modes
Standard Mode / Racing Mode (switchable via app)
Protection Rating
Derailleur IP67 — dust-tight, 1m submersion up to 30 min
Operating Temp
-20°C to 60°C
Brake Type
Rim brake (mechanical, cable-pull) — compatible with standard caliper brake cable pull
Lever Material
Carbon Fiber
Lever Reach
8mm adjustment range
Weight
Rear derailleur 400 ± 5g · Left lever 202.3g · Right lever 214.6g (measured; actual figures may vary slightly)

What's in the Box

×1

EDS GeX Electronic Rear Derailleur

×2

Rim Brake Shift Levers (Left + Right)

×1

Magnetic Charging Cable

×1

Spare Parts Kit + Quick-Start Guide

Quality Check & Return Inspection

Every order is checked, photographed, filmed and weighed before it ships, and every return is checked against those records.

Inspected and Tested Before Dispatch

Every groupset is brand new, and each one is inspected, paired and tested before it leaves us. That's why it reaches you new, fully working and free of marks, ready to fit.

Photographed, Filmed and Weighed

Each order is photographed and filmed when packed, and the parcel weight is recorded at dispatch.

Gift Box and Wooden Box

Ships in a printed "HELLO!" gift box with a zip tear strip. Inside, every electronic part is bubble-wrapped, sealed in a white frosted bag and packed in a wooden box: a free upgrade for 360° protection against crush damage in transit.

Returns Checked on Arrival

Every return is photographed and filmed when it's opened, and compared with our dispatch photos and video. It must be the item we sent, complete. Please return it in the original wooden box. Missing or different items are handled under eBay's returns policy.

Having trouble with setup? Message us first. Most issues are fixed in a few minutes.

Check Your Derailleur Hanger

Please complete these two checks before fitting the WHEELTOP rear derailleur. Only install it once both are confirmed.

Check 1

Is the Hanger Straight?

Bent derailleur hanger compared with a straight hanger

A bent hanger tilts the rear derailleur, which causes poor shifting, chain noise and difficult calibration, no matter how carefully it is set up.

How to check: look from behind the bike. The hanger should hang straight down, parallel to the cassette cogs. If it is bent, straighten it with a hanger alignment tool or fit a new hanger.

Check 2

Does the Hanger Have a Step?

Derailleur hanger with a clear step: compatible
Compatible

Clear step at the bottom

Derailleur hanger with a very small step: not compatible
Not compatible

Very small step

The small tab next to the mounting bolt must rest on the step at the bottom of the hanger, so the derailleur can swing forward and back.

Small step? Fit a hanger with a larger step, or a derailleur hanger extender. Otherwise the derailleur stays rigid and cannot be set up.

Not sure? Send us a close-up photo of your hanger through eBay messages before ordering, and we will check it for you.

Compatibility & Buyer Notes

Please review the following before purchasing to ensure correct fitment.

1x Drivetrain Only

Designed for single-chainring setups only. Not compatible with double or triple chainring systems.

Choose the Right Cage Length

Verify your cassette max sprocket before selecting: 75mm Medium Cage (GS) — up to 42T · 93mm Long Cage (SGS) — up to 52T. Using the wrong cage causes poor shifting or chain derailment.

This Listing is for Rim Brake Only

The levers included are rim brake levers — compatible with standard caliper brake cable pull. If you ride a disc-brake frame, please see our separate disc brake listing. Rim and disc brake levers are not interchangeable.

App-Based Setup Required

Initial calibration must be performed via the WHEELTOP app (free on iOS and Android) after installation.

Reviews

Feedback from verified purchases in our eBay store.

  • Positive feedbacku***a (937)Verified purchasePast month

    Excellent seller!

  • Positive feedbackl***5 (528)Verified purchasePast month

    Order delivered on time with no issues

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    Order delivered on time with no issues

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FAQ
Which brand of cassette does it support?

The app allows you to customize speed and gear spacing, so in theory it supports 3–14 speed cassettes from all brands.

How to pair the app?

On the home page, click the [Add Device] button. The APP will automatically navigate to the nearby devices list page. Locate your device's MAC address, then click to add and bind it. After successful binding, you will need to name the device.

Step 1: Click the Add button on the home page Step 2: Turn on your phone’s Bluetooth to search for nearby devices

Step 3: Select nearby bindable devices to add Step 4: Name the device

One last thing — and this is where a lot of users get stuck.

To connect, you need to tap the Bluetooth icon in the app. Before doing so, make sure the derailleur hasn't gone into sleep mode. If it has, just give the derailleur a tap or shake the bike to wake it up. Once the connection is successful, the Bluetooth icon will light up — and you're all set to start adjusting your derailleur.

How to do the initial calibration?

For EDS TX series:

  1. Set the front derailleur to the largest sprocket
  2. Set the rear derailleur to the smallest cog position
  3. Open the WHEELTOP App → Initial Calibration

Use "<" or ">" buttons to align the RD pulley with the smallest cog

Exit the initial calibration page

For EDS GeX and OX series: Same steps but skip step 1 (no FD adjustment required).

How to download and register the WHEELTOP app?

WHEELTOP APP download:

app Store

Google Play

After successful registration, log in to the app.

You can also download the APK file directly: APK Download Link

For first-time use, please register with your email.

How to perform a factory restore?

It works like a factory reset for gear values. Use it when gear values have been misadjusted to restore the preset values.

Path: APP → Settings → Device-adjustment → Fine-tuning → "Factory-restore" button at the bottom.

The rear derailleur position is inconsistent with the APP display

1.Go to the initial calibration page in the APP 2.Select the rear derailleur (upper section) 3.Press the right arrow (▶) and hold until the RD moves back to the smallest cassette

More questions (7)
The device cannot shift immediately after not riding for a long time

1.Charge the system — a low battery can delay activation 2.Gently shake the frame — this helps wake up the rear derailleur more quickly

Can EDS be paired with bike computers?

Yes!EDS TX, OX2.0, and GeX can all be paired with bike computers.

How do I power off and power back on my WHEELTOP EDS device?

In the latest version of the WHEELTOP app, swipe left on the rear derailleur's device card to bring up the **Disconnect / Power Off** menu, then tap **Power Off**. This is useful for shutting the system down during shipping or storage. To power the device back on, plug in the magnetic charging cable for **2-3 seconds** — once the charging indicator light turns **red**, the device powers on and reactivates.

WHEELTOP app screen showing the swipe-left Disconnect / Power Off menu
Is it equipped with a rear derailleur clutch function?

OX2.0 and GeX are equipped with a rear derailleur clutch function.

How long does the battery last on a single charge?

A fully charged WHEELTOP EDS battery delivers 20,000+ shifts per charge, which translates to 60+ hours of typical riding before needing to recharge. This exceptional range means most cyclists can ride several days between charges, making the EDS derailleurs ideal for long tours and multi-day events.

After pressing the shifter lever, the rear derailleur does not shift normally

1.Check the button indicator light: If there is no light, replace the battery and test again. 2.Check the light color: If the button is lit but not green (e.g. red or yellow), the device is not paired correctly. Re-pair following the manual.

What is the length of brake cables? Are they standard mechanical brake lines?

Our EDS TX/GEX Cable Brake Groupsets use standard mechanical disc brake cables, widely available in the market. Each set includes two brake cables. The length should be sufficient for most bikes.

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