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+ AL5 Electric Road Bike 2023
The highly capable Trek Domane+ AL5 Electric Road Bike will make every ride more fun, and have you riding further, and faster. A strong, light 100 Series Alpha Aluminium frameset discreetly holds a 250Wh battery in the downtube to provide a boost that'll last for up to 55 miles; a range extender can be purchased to take this up to 110 miles. The 250-watt rear hub motor will assist with pedalling up to 25kph (15.5mph), at which point it cuts out, but thanks to the build weight of around 14kg, the bike will still offer a natural ride feel.
Shimano 105 11-speed components with compact gearing offer a good range for hills and descents alike, and hydraulic discs take care of braking, in all conditions. The Bontrager Paradigm wheels and R1 Hard-Case Light tyres are strong and durable, offering good traction, smooth rolling comfort and puncture protection.
Equipped with mounts for mudguards and racks, and with enough room for 38mm wide tyres, this bike can be set up ready for bigger adventures and all-weather commuting, be that on roads or gravel trails.
Browse our range of Trek electric road bikes today.
- 100 Series Alpha Aluminium frame
- Plenty of mounts for racks and bags let you load up to explore anywhere from the road to light gravel
- Stable endurance geometry keeps you feeling comfortable and confident during long days in the saddle
- Natural feeling rear hub motor offers pedal assist up to 15.5mph (25kph)
- Fully integrated 250Wh battery in downtube offers ~55 mile (88km) range in eco mode (~110 mi (177 km) with optional Range Extender)
- Two, discreet top-mounted controls allow you to easily toggle between three assist levels without taking your hands off the bar for ultimate control and confidence
- The human interface (HMI) display is cleanly integrated into the top tube, giving riders a clear view of assist level and battery life
- At just over 14kg, it’s easy to ride without power and feels similar to an acoustic road bike.
- Shimano 105 drivetrain and hydraulic disc brakes
- Bontrager Paradigm tubeless-ready wheels and Bontrager R1 Hard-Case Lite tyres in a 32mm width
- 38c tyre clearance (32c with mudguards)
- Maximum Assist: 250 watt
- Battery Power: 250Wh
|Frame||Trek 100 Series Alpha Aluminium, mudguard and rack mounts, 142x12mm thru-axle|
|Fork||Trek 100 Series Alpha Aluminium, mudguard mounts, 12x100mm thru-axle|
|Stem||Bontrager Elite, 31.8 mm, Blendr-compatible, 7°, length - 80mm (49) / 90mm (52,54) / 100mm (56,58) / 110mm (61)|
|Handlebar||Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, width - 38cm (49) / 40cm (52) / 42cm (54,56) / 44cm (58,61)|
|Bar Tape||Bontrager Supertack Perf tape|
|Front Brake||Shimano 105 R7070 hydraulic disc, Shimano RT66, 6-bolt, 160mm rotor|
|Rear Brake||Shimano 105 R7070 hydraulic disc, Shimano RT66, 6-bolt, 160mm rotor|
|Brake Levers||Shimano 105 R7025, short-reach lever (49, 52) / Shimano 105 R7020 (54-61)|
|Front Derailleur||Shimano 105 R7000, 31mm clamp|
|Rear Derailleur||Shimano 105 R7000, long cage, 34T maximum cog, 11-speed|
|Shift Levers||Shimano 105 R7025, short-reach lever, 11-speed (49, 52) / Shimano 105 R7020, 11-speed (54-61)|
|Chain||Shimano 105 HG601, 11-speed|
|Cassette||Shimano 105 HG700-11, 11-34T, 11-speed|
|Crankset||FSA, 50/34T, 11-speed|
|Front Wheel||Bontrager Paradigm, tubeless-ready, 28-hole, 21mm width, Presta valve rim / Formula RX-812 alloy, sealed bearing, 6-bolt, 100x12mm thru-axle hub|
|Rear Wheel||Bontrager Paradigm, tubeless-ready, 28-hole, 21mm width, Presta valve rim / G2 hub drive hub|
|Front Tyre||Bontrager R1 Hard-Case Lite, wire bead, 60tpi, 700x32c|
|Rear Tyre||Bontrager R1 Hard-Case Lite, wire bead, 60tpi, 700x32c|
|Saddle||Bontrager P3 Verse Comp, steel rails, 155mm width (49,52) 145mm width (54-61)|
|Seatpost||Bontrager carbon, 27.2mm, 8mm offset, 330mm length|
|Pedals||Available to be purchased separately|
|Motor||HyDrive rear hub, 250 watt, 40Nm|
|Charger||Shimano 105 HG700-11, 11-34, 11-speed|
|Electric Assisted Speed Limit||15.5mph / 25km/h|
|Manufacturer Claimed Weight||14.06kg / 31lbs (56)|
|Weight Limit (combined weight of bicycle, rider and cargo)||125kg (275lbs)|
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.