Trek Domane SL 5 Gen 4 — 2026 Road Bike

Frame: 500 Series OCLV Carbon with IsoSpeed decoupler, internal storage, tapered head tube, internal cable routing, fender mounts, and a full carbon fork with internal brake routing

Drivetrain: Shimano 105 R7120, 12-speed, 2x with a 50/34 crank and 11-34 cassette

Brakes: Shimano 105 hydraulic disc, Shimano CL700/RT70 centerlock 160mm rotors

Cockpit: Bontrager Comp alloy handlebar and Trek RCS Pro stem (dimensions vary by frame size), KVF aero carbon seatpost

Standout feature: Tubeless-ready setup with clearance for up to 38mm tyres (without fenders), giving room to size up for rougher backroads

This bike is for the road rider who wants comfort on long rides without giving up performance — someone training for a fondo, tackling the climb up Myra Canyon, or putting in big weekend miles on Okanagan valley routes. It suits a rider stepping up to a carbon frame and hydraulic disc brakes on a budget-conscious build, and who'll appreciate IsoSpeed smoothing out rough Okanagan pavement over a long day in the saddle.

Our team at Fresh Air will help you find the right fit in-store at both Kelowna locations. Stop by to work with one of our experienced staff members, or call 250-763-3425.

Our team can dial in your fit on the Domane SL 5 Gen 4, setting saddle height and stem length to your body across the nine available frame sizes, and checking cleat alignment if you're running clipless pedals. We'll get your Bontrager tyres set up tubeless and pressure adjusted for whatever mix of Okanagan valley roads you're riding. If you're planning to run a computer or sensors, we can help with mounting and setup so everything's ready to go. We also offer ongoing servicing to keep your Shimano 105 drivetrain and brakes running smoothly.

Q1: What size Trek Domane SL 5 Gen 4 do I need?
The Domane SL 5 Gen 4 is available in sizes 44 through 62, with cockpit dimensions (handlebar, stem, and crank length) scaled per size. General sizing follows rider height, but we always recommend an in-store fit check to dial in reach and saddle position. See the geometry chart link in the Geometry & Sizing section, or come into either Kelowna location and our team will help you find your size.

Q2: Is the Trek Domane SL 5 Gen 4 right for riding Okanagan valley routes?
Yes — with its endurance geometry, IsoSpeed comfort tech, and clearance for up to 38mm tyres, this bike is well suited to long days on Okanagan valley roads, climbs like the Myra Canyon approach, and local gran fondos.

Q3: What groupset is on the Domane SL 5 Gen 4 and is it upgradeable?
It comes with a Shimano 105 R7120 12-speed groupset, a reliable mid-range option that covers everything from climbing to sprinting. Key components like the wheels, tyres, and cockpit can be upgraded down the line as your riding evolves — our team can talk through options in-store.

Frame:Alpha NEXT Platinum aluminum, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145mm-160mm

Frame w. Fork: 500 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, fender mounts, flat mount disc, 142x12mm thru axle

Shock: Domane SL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle

Front Wheel: Bontrager Paradigm Comp 23, Tubeless Ready, 23mm rim width, 100x12mm thru axle

Rear Wheel: Bontrager Paradigm 23, Tubeless Ready, 23mm rim width, Shimano 11/12-speed freehub, 142x12 thru axle

Front Skewer: Bontrager Switch thru axle

Skewer Rear: Bontrager Switch thru axle, removable lever

Tire: Bontrager Kwaremont Pro GR, tubeless ready, folding bead, dual compound, 120 tpi, 700x32mm

Tire Part: Bontrager TLR sealant, 180 ml/6 oz

Max Tire Size: 38mm without fenders, 35mm with fenders (as measured, see manual for details)