Trek Domane SLR 9 Gen 4 Road Bike 2025
If you're searching for the ultimate endurance road bike that excels on tarmac and is ready for race days, the Domane SLR 9 Dura-Ace Di2 is your perfect match. You refuse to compromise on performance, and this bike delivers with the most advanced frame we offer, coupled with the wireless Shimano Dura-Ace Di2 drivetrain for lightning-fast, precision shifting in any condition.
The Domane SLR 9 Dura-Ace Di2 is built around an ultra-light 800 Series OCLV Carbon frame and fork, complete with rear IsoSpeed for unparalleled comfort on long rides. It features integrated internal storage, top tube mounts, and a Shimano 2x12 Dura-Ace Di2 electronic drivetrain for impeccable shifting. The bike is also equipped with powerful flat-mount disc brakes, Aeolus RSL 37 carbon wheels, and a Bontrager Pro IsoCore handlebar that reduces road vibrations by 20%, offering a smoother, more controlled ride.
The Domane SLR 9 Dura-Ace Di2 stands out as our highest-end endurance road bike, offering unmatched comfort, reliability, and speed. The 800 Series OCLV Carbon frame, with its sleek Kammtail tube shapes, not only reduces weight but also enhances aerodynamics for free speed. Shimano's top-tier Dura-Ace Di2 drivetrain ensures crisp, flawless shifts while keeping the setup light. With road-smoothing rear IsoSpeed, internal storage, and top tube mounts for gear, this bike is built for the longest and toughest rides, whether you're competing or adventuring.
Technical Specification
| Frame with Fork | 800 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, mudguard mounts, flat mount disc, 142x12 mm thru axle |
| Frame fit | Endurance |
| Weight | 56 cm – 7.25 kg / 15.99 lb (with TLR sealant, no tubes) |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 125 kg (275 lb). |
| Battery | Shimano BT-DN300 |
| Charger | Charging cable included |
| Shifter | Shimano Dura-Ace R9270 Di2, 12-speed |
| Front derailleur | Shimano Dura-Ace R9250 Di2, braze-on, down swing |
| Rear derailleur | Shimano Dura-Ace R9250 Di2, 34T max cog |
| Crank | Shimano Dura-Ace R9200, 50/34 |
| Bottom bracket | Praxis, T47 threaded, internal bearing |
| Cassette | Shimano Dura-Ace R9200, 11-34, 12-speed |
| Chain | Shimano Dura-Ace/XTR M9100, 12-speed |
| Max. chainring size | 1x 48T 2x 52/36 |
| Wheel front | Bontrager Aeolus RSL 37, OCLV Carbon, Tubeless Ready, 37 mm rim depth, 100 x 12 mm thru axle |
| Wheel rear | Bontrager Aeolus RSL 37, OCLV Carbon, Tubeless Ready, 37 mm rim depth, 142 x 12 mm thru axle |
| Skewer front | Bontrager Switch thru-axle, removable lever |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Tyre | Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 120 tpi, 700x32 mm |
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Max tyre size | 38 mm without mudguards, 35 mm with mudguards |
| Saddle | Verse Short Pro, carbon rails |
| Seatpost | KVF aero carbon seat post, 20 mm offset |
| Handlebar | Bontrager Pro IsoCore VR-SF |
| Handlebar tape | Bontrager Supertack Perf tape |
| Stem | Trek RCS Pro, -7-degree |
| Brake | Shimano Dura-Ace hydraulic disc |
| Brake rotor | Shimano CL900, CentreLock, 160 mm |
| Rotor size | Max brake rotor sizes 160 mm front and rear |
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 SLR9 Gen 4 Road Bike 2025 Sizing
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