WheelTop EDS Road Bike hydraulic Electronic Derailleur Set TX-TA7100_GS

The WheelTop EDS TX-TA7100_GS is a wireless electronic shifting groupset supporting 3–14-speed drivetrains, with independent batteries for the front and rear derailleurs and a hydraulic disc brake system — designed to upgrade an existing mechanical disc brake road bike to wireless electronic shifting without replacing the whole bike.

Video: WheelTop EDS electronic shifting review, from the Jollymap YouTube channel

Key Highlights

• Category: Wireless electronic road bike derailleur groupset with hydraulic disc brakes
• Brand: WheelTop (founded 1951, a bicycle drivetrain component manufacturer that also supplies OEM parts to multiple international bike brands)
• Drivetrain: 1/2-speed front derailleur, 3–14-speed rear derailleur, wireless Bluetooth and ANT connection between shifters and derailleurs
• Battery: 500 mAh front derailleur, 800 mAh rear derailleur, up to 20,000+ shifts per charge, rated for approximately 800 recharge cycles
• Hydraulic disc brakes: Flat Mount calipers, mineral oil brake fluid, bilateral braking
• Waterproofing: IP67 for the derailleurs, IP65 for the shifters
• Best for: Riders who want to upgrade an existing mechanical disc brake road bike to wireless electronic shifting without buying a new bike

Wireless Shifting for a Simpler Install

The EDS TX derailleurs and shifters connect wirelessly via Bluetooth and ANT, eliminating shift cables for an easier install. The hydraulic brake hoses (900 mm front / 1,550 mm rear, per WheelTop) still need routing, so please contact us before ordering if your frame is internally routed. The shifters display gear position feedback, and the front derailleur uses a single button for simpler shifting; each button's function can be customised in the WheelTop app.

App Fine-Tuning Across 3–14-Speed Setups

The rear derailleur has a total capacity of 36T, with a minimum sprocket of 10–11T and a maximum of 30–36T; the front derailleur has a total capacity of 16T, compatible with chainrings up to 53T large / 26T small. The WheelTop app lets you fine-tune the derailleurs for your actual cassette speed (3 to 14 speeds), and also supports disabling the front derailleur to run the system as a 1x setup.

Hydraulic Disc Brake Calipers

The groupset includes hydraulic disc brake calipers using mineral oil brake fluid, Flat Mount installation (not compatible with Post Mount); official rotor size information is inconsistent — 140/160 mm and 160/180 mm both appear — so please contact us before ordering to confirm. Brake pads are compatible with Shimano L04C, L05A, L04A, BR-RX810 and IIPRO-GLYS, and the oil hoses are compatible with the Shimano BH-90 standard, making future consumable replacement easier.

Technical Specifications

Brand	WheelTop
Series	EDS TX (hydraulic disc brake version)
Drivetrain	1/2-speed front, 3–14-speed rear
Front derailleur	16T total capacity, compatible with up to 53T large chainring / 26T small chainring, 500 mAh battery
Rear derailleur	36T total capacity, 10–11T minimum sprocket, 30–36T maximum sprocket, 800 mAh battery
Battery life	20,000+ shifts per charge, rated for approximately 800 recharge cycles; charges via magnetic USB-C cable
Connectivity	Bluetooth and ANT wireless connection, configured and fine-tuned via the WheelTop app
Waterproof rating	IP67 for derailleurs, IP65 for shifters
Hydraulic brake system	Mineral oil, bilateral braking, Flat Mount calipers (not compatible with Post Mount); official rotor size is inconsistent (140/160 mm or 160/180 mm) — please contact us before ordering to confirm
Brake pad compatibility	Shimano L04C, L05A, L04A, BR-RX810, IIPRO-GLYS
Oil hose compatibility	Shimano BH-90

Specifications sourced from WheelTop's official website (wheeltop.us / wheeltop.com), EDS TX hydraulic disc brake version product page. Rotor compatibility is listed as 140/160 mm in one section of the official page and 160/180 mm in another. Actual compatibility depends on the calipers included with your set — please contact us to confirm before ordering.

Jollymap's Recommendation

If your road bike currently runs a mechanical groupset (for example a Giant TCR Advanced 2 or Merida Scultura Endurance 4000 with mechanical Shimano 105), you could consider upgrading it to wireless electronic shifting with the EDS TX — please check fitment with us first. Compatibility depends on your bike's caliper mounting type (must be Flat Mount), front derailleur mount (Band-On or Braze-On), sprocket range (min. 10–11T, max. 30–36T), chainring size (max. 53T) and internal hose routing, so it varies by bike. Please contact us before ordering — share your bike model, current groupset and cassette speed so we can confirm compatibility.

FAQ

What cassette speeds does the WheelTop EDS TX support?

The rear derailleur officially supports 3 to 14-speed cassettes, and the front derailleur supports 1x or 2x chainring setups. The actual speed is configured through the WheelTop app, with no hardware changes required.

How long does the battery last, and how do I charge it?

The front derailleur battery is 500 mAh and the rear derailleur battery is 800 mAh; officially rated for over 20,000 shifts per charge, with the battery rated for approximately 800 recharge cycles. Charging is via a magnetic USB-C cable that plugs directly into the derailleur — no disassembly needed.

Will this fit my current mechanical road bike?

WheelTop states the system is designed to be broadly compatible with most bikes, but actual fitment depends on caliper mounting type (must be Flat Mount), front derailleur mount type and frame routing, so compatibility varies by bike. Please contact us before ordering with your bike model and current setup so we can confirm compatibility.

Can I set it up as a 1x (single chainring) system?

Yes. The WheelTop app lets you disable the front derailleur to run the system as a 1x setup, with no hardware removal required.

Can I pair it with mountain bike (MTB) shifters?

Not currently. According to the manufacturer, the road rear derailleur can currently only be paired with EDS road-specific controllers, not MTB controllers.

How does this compare to Shimano Di2 or SRAM AXS?

WheelTop EDS TX is officially rated for 3 to 14-speed cassettes via app configuration, with a fully wireless Bluetooth and ANT connection between shifters and derailleurs, and can be set up as a 1x system. Shimano Di2 and SRAM AXS specifications are per each brand's official data — if you'd like a comparison against your current bike, please contact us.

How much does the WheelTop EDS TX weigh?

Official weights: rear derailleur 336±5 g, front derailleur 191±5 g, hydraulic disc brake caliper 163±10 g each (excluding shifters and hoses).

Last updated: September 2026