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Trek Domane SL 5 Gen 3 Disc Road Bike

★★★★★ ★★★★★
£2,435.00 - £2,649.00
RRP £3,050.00

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Price £2,649.00 (Save 13%)
Price £2,440.00 (Save 20%)
Price £2,435.00 (Save 20%)
Domane SL 5 Gen 3 Disc Road Bike

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Product ID: 1451578

Why buy your bike from Sigma Sports?

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Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.

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Built, Checked, Tuned and Tested

All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.

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We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.

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Free 30-Day Bike Insurance

We've partnered with Pedalsure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.

Trek Domane SL 5 Gen 3 Disc Road Bike

Fast, versatile and supremely comfortable, the Trek Domane SL 5 Disc Road Bike is the consummate all-rounder. The carbon frame has aerodynamically shaped tubes and hidden cables to reduce drag, yet there are hidden mudguard mounts too for all-weather riders. The very generous frame clearance allows the use of 38mm tyres for fantastic levels of grip and comfort whilst the front and rear IsoSpeed systems add huge amounts of compliance to isolate the rider from imperfect road surfaces. These concepts work together to make the Domane the perfect companion for long, arduous rides, helping stave off fatigue and increase speed.

The Shimano 105 gearing also points to the bike's versatility, with the very wide-range 11-34t cassette offering ratios suitable for the very steepest hills as well as flat sections too. Hydraulic disc brakes work as well in the wet as they do in the dry, ensuring control and confidence at all times; ideal for all-day epics when the weather is uncertain.

32mm Bontrager R3 Hard-Case Lite tyres provide yet more comfort and low rolling resistance and are paired with Bontrager’s Paradigm SL wheelset for a tubeless-ready set-up that can be used every day of the year. Size-specific finishing kit and endurance orientated geometry mean that every rider can enjoy a comfortable, efficient and confidence-inspiring position on the bike and a compartment in the down tube secures a few tools neatly out of the way.


  • Trek Domane 500 Series OCLV Carbon frame with front and rear IsoSpeed, internal storage and mudguard mounts
  • Trek Domane SLR carbon fork with mudguard mounts
  • Shimano 11-speed 105 groupset
  • Shimano 105 hydraulic disc brakes
  • Bontrager Paradigm SL wheelset
  • Bontrager R3 Hard-Case Lite, tubeless-ready tyres, 700x32c

Technical Specification

Frame Trek 500 Series OCLV Carbon, front and rear IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, DuoTrap S-compatible, mudguard mounts, flat-mount disc, 142x12mm thru-axle
Fork Trek Domane SLR carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat-mount disc, carbon dropouts, 12x100mm thru-axle
Bottom Bracket Praxis, T47 threaded, internal bearing
Stem Bontrager Elite, 31.8mm, Blendr-compatible, 7°, 60mm to 110mm depending on frame size
Handlebar Bontrager Comp VR-S, alloy, 31.8mm, 81mm reach, 118mm drop, sizes 44 and 47 - 36cm width, 50 - 38cm width, 52 - 40cm width, 54 and 56 - 42cm, 58, 60, 62 - 44cm
Bar Tape Bontrager Supertack Perf tape
Front Brake Shimano 105 hydraulic disc
Rear Brake Shimano 105 hydraulic disc
Brake Levers Shimano 105 hydraulic disc
Front Derailleur Shimano 105 R7000, braze-on
Rear Derailleur Shimano 105 R7000, long cage, 34t maximum cog
Shift Levers Shimano 105 R7020, 11-speed
Chain Shimano 105 HG601, 11-speed
Cassette Shimano 105 HG700-11, 11-34, 11-speed
Crankset Shimano 105 R7000, 50/34t, size 44 and 47 - 165mm, 50, 52 - 170mm, 54, 56 - 172.5mm, 58, 60, 62 - 175mm
Front Wheel Bontrager Paradigm SL, tubeless-ready, 24-hole, 21mm width rim with Bontrager alloy, sealed bearing Center Lock hub, 100x12mm thru-axle
Rear Wheel Bontrager Paradigm SL, tubeless-ready, 24-hole, 21mm width rim with Bontrager alloy, sealed bearing Center Lock Shimano 11-speed freehub, 142x12mm thru-axle
Front Tyre Bontrager R3 Hard-Case Lite, tubeless-ready, aramid bead, 120 tpi, 700x32c
Rear Tyre Bontrager R3 Hard-Case Lite, tubeless-ready, aramid bead, 120 tpi, 700x32c
Saddle Bontrager P3 Verse Comp, steel rails, 145mm width
Seatpost Bontrager carbon internal seat mast cap, integrated light mount, 20mm offset
Pedals Available to be purchased separately
Manufacturer claimed weight 9.2kg size 56cm

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.

If you require any assistance please contact our Customer Care team.

Trek Domane SL 5 Gen 3 Disc Road Bike Sizing

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