WHEELTOP EDS TT Wireless Electronic Groupset Rim Brake Triathlon Time Trial Bike

Four Buttons. Zero Compromise to Aero Position.

The SW-TT7110 mounts at the tip of each aerobar extension. Four angled, thumb-reach shift buttons let you shift front and rear derailleurs without lifting your torso, moving your elbows, or changing position in any way. The serrated shark-fin profile is sculpted from biomimetic aerodynamic principles — form and function engineered together to cut through the air rather than fight it.

Four Programmable Buttons

All four buttons on the SW-TT7110 are programmable via the WHEELTOP app — assign front shift up/down, rear shift up/down, or custom functions. The system's flexibility expands what a shifter can do beyond just gear changes.

Carbon Fiber Hollow Oversized Pulley Cage

Oversized pulley wheel systems reduce the chain's wrap angle around each pulley, which means less chain articulation per revolution and measurably lower friction across the full drivetrain. The TT rear derailleur upgrades to carbon fiber hollow oversized pulleys — lighter than standard, stiffer under load, and noticeably smoother under hard pedaling effort. On a TT bike where every watt counts, this is exactly where gains matter most.

Shift from the Aerobar Tips

The rear derailleur takes shift commands wirelessly from the bar-end shifters, with no cables to route.

Front Shift on a Button Press

The EDS TT front derailleur runs its own built-in 600mAh rechargeable battery via Pogopin magnetic charging, and shares the same BLE/ANT+ wireless system as every other component in the kit. Compatible with 53T chainrings standard on TT and triathlon bikes. Like the rear, it shifts wirelessly from the bar-end shifters at your aerobar tips.

Step 1

Pair Your Components

All Four Components, One Screen

The Connected view puts the rear derailleur, front derailleur, and both bar-end shifters on one screen, so you can check every component's charge level at a glance before a ride.

Step 2

Set Your Cassette Speed

Not Locked to One Speed Count

Unlike a mechanical derailleur built for one fixed speed, EDS TT is fully configurable — set whatever speed count you're running, directly in the app.

Step 3

Run Initial Calibration

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.

Step 4

Fine-Tune Every Gear

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.

Set It Once, Ride Your Way

Reassign the four SW-TT7110 buttons to trigger whichever shift function feels natural, or tap Factory Restore to reset instantly.

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.

Stay Current, Wirelessly

Tap to review what's new, then update over the air — just make sure the component has enough charge before you start.

TT / Triathlon Bikes Only

Designed specifically for TT and triathlon bikes with aerobar extensions. The SW-TT7110 mounts at the aerobar tip (Φ19.5mm). Not intended for drop-bar road bikes — use EDS TX for those.

Verify Aerobar Tip Diameter

SW-TT7110 requires an aerobar inner diameter of Φ19.5±0.5mm. Please confirm your aerobar dimensions before ordering.

Confirm Your Cassette and Brakes

Rear derailleur supports max sprocket 30-36T across 3-14 speed cassettes. Confirm your cassette falls within this range. This kit has no brake levers or calipers, so please make sure your own rim brakes work with your frame and fork.

App Pairing Required Before First Ride

After installation, pair all components to the WHEELTOP app over BLE, assign button functions, and run gear calibration. The app is free on iOS and Android.