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GeX 7700 Hydraulic Brake 75mm Cage (Carbon Lever)

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GeX 6600 Mechanical Brake 75mm Cage (Carbon Lever)

GeX 6601 Mechanical Brake 93mm Cage (Carbon Lever)

GeX 6700 Hydraulic Brake 75mm Cage (Alloy Lever)

GeX 6701 Hydraulic Brake 93mm Cage (Alloy Lever)

GeX 7701 Hydraulic Brake 93mm Cage (Carbon Lever)

Customer Support Our dedicated team is always here to help with sizing, builds, and orders.

Warranty Protected 1-year manufacturer warranty

Shipping Included Included on most components and wheelsets. Free on orders over $100. Worldwide delivery with tracking.

Rider Approved We test and ride what we sell. Every product is hand-selected for quality and performance.

Wheeltop Wireless Gravel EDS GeX Shifter/Derailleur

A fully wireless gravel derailleur built to perform on the toughest terrain — combining rugged durability, a wide gear range, and configurable brake options.

Wheeltop Wireless Gravel EDS GeX Shifter/Derailleur — Features & Benefits

Wireless Shifting: no shift cables — fast, clean, hassle-free gear changes.
Rugged Gravel Design: combines the best of WheelTop's OX and TX systems for a strong, durable derailleur built for rough terrain.
Wide Gear Range: 75 mm cage (10–46T) or 93 mm cage (10–52T), each with an adjustable clutch spring.
Brake Options: mechanical or hydraulic with alloy or carbon levers (model codes below).
Hydraulic Compatibility: pairs with WheelTop BR-RA7800 calipers and TX levers; future 2x via TX front derailleur (75 mm cage).
Customisable Speeds: compatible with 3- to 14-speed setups.

Wheeltop Wireless Gravel EDS GeX Shifter/Derailleur — Specifications

Drivetrain

Type: Wireless electronic rear derailleur (upgrade kit)
Speeds: 3–14 speed compatible
Cage / range: 75 mm → 10–46T | 93 mm → 10–52T
Clutch: Adjustable spring for chain retention

Shifters & Brakes (model codes)

GeX 6600 / 6601: Mechanical, carbon levers
GeX 6700 / 6701: Hydraulic, alloy levers
GeX 7700 / 7701: Hydraulic, carbon levers

Compatibility

Hydraulic calipers: WheelTop BR-RA7800
Levers: TX alloy or carbon
Future 2x: TX front derailleur (75 mm cage only)

Helpful Links

Browse all groupsets and Wheeltop groupsets, or explore our components.

Wheeltop Wireless Gravel EDS GeX Shifter/Derailleur — FAQ

How fast do orders ship?

Orders ship once processing is complete and a tracking number is generated. Delivery time depends on your destination and the carrier.

Are duties included?

Shipping and import handling vary by destination. Where DDP (Delivered Duties Paid) is available, duties are settled at checkout for eligible orders; otherwise local import duties may apply on delivery.

What warranty applies?

Wheeltop groupsets carry a manufacturer warranty. If an issue occurs, Underdogs Cycling will guide you through the claim with the manufacturer.

Will it fit my bike?

The EDS GeX works with 3–14 speed setups; choose the 75 mm cage (10–46T) or 93 mm cage (10–52T) for your cassette and the brake variant for your build. If unsure, send us your frame, cassette and brake details.

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