Product Highlights
Trek's highest grade carbon makes the frame incredibly light, stunningly responsive and compliant.
Blending Bontrager's top RSL carbon with a tuned rim profile these wheels are light, stiff and aero.
Shimano's flagship offering, this 11-speed electronic groupset maximises accuracy and efficiency.
Dampening units in the seat tube and head tube markedly reduce rough road vibrations.
Trek Domane SLR 9 Disc Road Bike Gen 4 2025
Fast, comfortable and hugely versatile, Trek’s Domane SLR 9 Disc Road Bike Gen 4 can tackle everything from long endurance rides to short races, with a bit of light gravel and winter training thrown in for good measure.
The key to its versatility is the Gen 4 frame. Made from 800 Series OCLV Carbon it is light and stiff where necessary with improved Kammtail tubing for better aerodynamics, yet Trek’s IsoSpeed concept provides cossetting comfort on rough roads and lanes. When coupled with the Bontrager Pro IsoCore handlebar, it greatly reduces fatigue and discomfort caused by poor surfaces, making the bike quicker for longer. The bike’s geometry also reflects its performance-comfort aims, with figures that are ideal for long endurance style rides without blunting its speed on shorter loops.
Clearance for tyres up to 38mm offers the opportunity to fit some wide rubber and venture off the tarmac onto traffic-free trails whilst the integrated mudguard mounts make it a viable year-round option. The frame also includes Trek’s internal down tube storage that is hidden beneath the bottle cage, and with space for a few tools and an inner tube, it keeps the weight low down and out of jersey pockets.
Dura-Ace 9200 is Shimano’s range-topping groupset, with superlative shifting and braking performance. The 11-34-tooth, 12-speed cassette allows for a wide range of ratios without there being uncomfortable gaps between the gears and the 50/34 chainset means that there is a 1:1 option for really steep or long climbs. Shifting is fully electronic, with just a light touch of the levers needed to call up another gear, front or rear, and with no cables to stretch or deteriorate every shift is instant and accurate.
The hydraulic disc brakes have some crossover technology with the mountain bike line, so the Servo Wave design gives more power and modulation whilst also putting a bigger gap between the rotor and pads for less dragging.
Bluetooth connectivity allows the system to communicate with GPS computers and smartphones for gear displays, battery information and other useful metrics, and Shimano’s E-Tube app provides the possibility to choose between various shifting modes and customise some operations.
The tubeless-ready Bontrager Aeolus RSL 37 OCLV Carbon wheels are lightweight for climbing and shallow enough to be untroubled in blustery conditions but still have an aerodynamically advantageous profile for lower drag at high speed.
Highlights
- Trek 800 Series OCLV Carbon frame with IsoSpeed, mudguard mounts and internal storage
- Trek Domane SLR carbon fork with mudguard mounts
- 12-speed Shimano Dura-Ace Di2 electronic groupset
- Shimano Dura-Ace hydraulic disc brakes
- Tubeless-ready Bontrager Aeolus RSL 37 OCLV Carbon wheels with 32c Bontrager R3 Hard-Case Lite tyres
- Clearance for 38c tyres without mudguards, 35c with mudguards
Technical Specification
| Frame | Trek 800 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, 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 RCS Pro, 7°, 70mm length (size 47), 80mm (50), 90mm (52, 54), 100mm (56, 58), 110mm (60, 62) |
| Handlebar | Bontrager Pro IsoCore VR-SF, 38cm (size 47), 40cm (50, 52), 42cm (54, 56), 44cm (58, 60, 62) |
| Bar Tape | Bontrager Supertack Perf tape |
| Front Brake | Shimano Dura-Ace 9200 hydraulic disc with MT900, Center Lock rotor 160mm |
| Rear Brake | Shimano Dura-Ace 9200 hydraulic disc with MT900, Center Lock rotor 160mm |
| Brake Levers | Shimano Dura-Ace 9200 hydraulic |
| Front Derailleur | Shimano Dura-Ace R9250 Di2, braze-on, down swing |
| Rear Derailleur | Shimano Dura-Ace R9250 Di2 12-speed |
| Shift Levers | Shimano Dura-Ace R9270 Di2, 12-speed |
| Chain | Shimano Dura-Ace 12-speed |
| Cassette | Shimano Dura-Ace R9200, 11-34, 12-speed |
| Crankset | Shimano Dura-Ace R9200, 50/34, 165mm length (size 47) 170mm (50, 52), 172.5mm (54, 56), 175mm (58, 60, 62) |
| Front Wheel | Bontrager Aeolus RSL 37, OCLV Carbon, tubeless-ready, 37mm rim depth, 100x12mm thru-axle |
| Rear Wheel | Bontrager Aeolus RSL 37, OCLV Carbon, tubeless-ready, 37mm rim depth, Shimano 11/12 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 Pro, short nose, 155mm width (size 47, 50, 52), 145mm (54, 56, 58, 60, 62) |
| Seatpost | Trek Domane carbon seat post, KVF2 shaping, 20mm offset, 280mm length (size 47, 50, 52, 54, 56), 320mm (58, 60, 62) |
| Pedals | Available to be purchased separately |
| Accessories | Bontrager BITS internal frame storage bag |
| Manufacturer claimed weight | 7.25kg 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 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. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
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 SLR 9 Disc Road Bike Gen 4 2025 Sizing
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