WHEELTOP EDS TT Electronic Groupset First Impression: Budget Triathlon Build Review

Over the last week here in Quebec, I’ve built and tested a soon-to-be-released electronic groupset from WHEELTOP: the EDS TT groupset, and I want to share my completely transparent first impressions with you. WHEELTOP sent me this groupset for free, but they have no say in my review. To clarify, this package reuses the same reliable front and rear derailleurs from their road version, which I’ve personally ridden for over 3,000 km without a single failure. Priced under $1,000 USD, the kit includes the derailleurs, disc brake calipers, brake levers, and two TT base bar shifters. For my winter Felt AR TT bike conversion for the upcoming Ironman 70.3, this budget-friendly option is perfect because I didn't want to spend $2,500 CAD on a Shimano system for a bike I won't ride every day. WHEELTOP is absolutely nailing this market segment by making custom TT builds accessible without breaking the bank.

Installing the groupset was incredibly straightforward since the derailleurs are fully wireless. At the cockpit, you slide the ski shifters into the aero bars and tighten them with a 2.5mm or 3mm Allen key; a single electronic wire connects the ski shifters to the brake levers because the wireless transmitter "brain" sits at the top front end. The only real headache was routing the hydraulic hoses through the integrated headset, stem, and base bar, but that is a standard challenge for any integrated TT bike. My professional mechanic, Lou, noted that bleeding the brakes was super easy with standard mineral oil because the bleed ports are perfectly placed, allowing air bubbles to rise effortlessly. The brake levers also offer great reach adjustment for hands of all sizes and deliver a firm, confident stop with excellent modulation during my emergency braking tests. Lou did point out that the included hydraulic hoses are a bit short for large bike frames (mine is a size 51 small with a 90mm stem), but since the olives and lines look identical to Shimano's, they are likely cross-compatible if you need to source longer lines. Setting up the shifting was so simple that I literally indexed it with a baby strapped to my chest! Using the mobile app, you can instantly choose your cassette speed anywhere from 3 to 14 gears. Without the chain on, I aligned the top pulley wheel with the cassette using the app, set the limit screws, put the chain on, and achieved perfect shifting on the very first try.

However, as of April 2026, there is one major drawback you need to know: a noticeable delay when shifting from the brake levers. After messaging my contact at WHEELTOP, I discovered this lag exists because the base bar buttons are hardcoded to wait for a double-click to trigger the front derailleur. This is an annoying issue because when I am cornering in the base bars, I need instant rear shifts to get back up to speed, and on my first ride, I kept accidentally dropping my chain to the small ring. WHEELTOP needs to add an option to disable this double-click via firmware. For now, I just have to be careful not to click too fast during races. Additionally, community feedback on Reddit and Instagram highlights that WHEELTOP still lacks robust customer support and local spare part distribution, though they are actively working on it. Overall, I am highly satisfied and confident in this groupset; it’s an incredibly solid, reliable option for budget triathletes, and with WHEELTOP's recent acquisition of Realtor, I can't wait to see them release their own chains, cassettes, and cranksets soon!