Why buy your bike from Sigma Sports?
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.
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.
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.
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 AL 5 Disc Road Bike 2021
Marrying a strong alloy frame, carbon fork and reliable performance components, the Trek Domane AL 5 Disc Road Bike is fast, light and comfortable. IsoSpeed technology is incorporated into the fork and helps to smooth out vibrations coming up from the road, preventing excess fatigue. Endurance Geometry is a little less aggressive than race geometry, allowing you to ride all day without any compromises on speed. The tubing itself has been designed to be more aerodynamic than its predecessor and, alongside hidden cable routing, minimises drag. There's clearance for wider tyres - up to 38c - so you can set up the bike for mixed terrains and venture further off the tarmac, while the mudguard mounts allow you to get ready for all weather conditions.
The Shimano 105 11-speed groupset balances reliability and performance well, with shifting incredibly smooth and precise up and down the cassette. Hydraulic discs take care of braking, no matter the conditions. Compatible with the DuoTrap S sensor (purchased separately), you can collect speed and cadence data from your rides and transfer to a compatible smartphone for analysis. Rolling on Bontrager tubeless-ready wheels, make the conversion from a tube-type setup and benefit from faster rolling, more comfort and the elimination of potential pinch flats.
- Trek 100 Series Alpha Aluminium frame with hidden cables
- The unique IsoSpeed Carbon fork, which swoops forward toward the dropouts, absorbs vibrations from the road so your arms won't fatigue as quickly
- Endurance Geometry
- Setting your wheels up as tubeless reduces the overall weight of your bike and the chance you’ll get a flat
- Bigger tyre clearance (up to 38c) lets you run wider tyres for more traction and stability on trails and other light gravel roads
- DuoTrap S compatibility makes it easy to wirelessly track your rides, so you can set goals and watch yourself reach them
- Shimano 105 11-speed compact drivetrain
- Shimano 105 hydraulic disc brakes
|Frame||Trek 100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, DuoTrap S compatible, flat mount disc, 142x12 thru-axle|
|Fork||Trek Domane AL carbon, tapered alloy steerer, internal brake routing, mudguard mounts, flat mount disc, 12x100mm thru-axle|
|Headset||FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom|
|Bottom Bracket||Shimano RS500, 68mm, threaded external|
|Stem||Bontrager Elite, 31.8mm, Blendr compatible, 7-degree|
|Handlebar||Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop|
|Bar Tape||Bontrager Supertack Perf|
|Front Brake||Shimano 105 hydraulic disc|
|Rear Brake||Shimano 105 hydraulic disc|
|Brake Levers||Shimano 105 R7020, 11-speed|
|Front Derailleur||Shimano 105 R7000, 31.8mm clamp|
|Rear Derailleur||Shimano 105 R7000, long cage, 34T maximum cog, 11-speed|
|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, 50/34 (compact)|
|Front Wheel||Bontrager alloy, sealed bearing, Centre Lock disc, 100x12mm thru-axle hub / Bontrager tubeless-ready, 24-hole, 21mm width, Presta valve rim|
|Rear Wheel||Bontrager alloy, sealed bearing, Centre Lock disc, Shimano 11-speed freehub, 142x12mm thru-axle / Bontrager tubeless-ready, 24-hole, 21mm width, Presta valve rim|
|Front Tyre||Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32c, clincher|
|Rear Tyre||Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32c, clincher|
|Saddle||Bontrager P3 Verse, steel rails, 145mm width|
|Seatpost||Bontrager alloy, 27.2mm, 8mm offset|
|Pedals||Available to purchase separately|
|Manufacturer Claimed Weight||10.23kg / 22.55lbs (size 56)|
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 specified), 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. We do not install accessories to bikes, including mudguards.
Trek Domane AL 5 Disc Road Bike 2021 Sizing
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