2025 Trek Domane SL 6 Gen 4

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  • Regular price $4,999.99

The Domane SL 6 is an endurance road bike that's light, aerodynamic and built to take on long, rough miles in the saddle. With the huge advantage of an electronic Shimano 105 Di2 drivetrain and clearance for 38 mm tyres, the Domane SL 6 is ready to soar over cobbles and tarmac alike. A fully integrated cockpit keeps your set-up looking as sleek as it feels and an easy-access storage compartment stows ride essentials. Pair that with road-smoothing rear IsoSpeed, easy-access internal storage, tubeless-ready wheels and you'll be riding for longer – and having more fun – than you ever thought possible.

It's right for you if...

Every ride might start on the road, but that doesn't mean it'll end there. You want a ride that balances versatility, comfort and speed. Looks are important, but so is reliability, and you love the high-tech electronic set-up of the Shimano 105 Di2 drivetrain and stopping power of hydraulic disc brakes. Finished off with a carbon frame and rear IsoSpeed, you know that every ride is going to be a dream.

The tech you get

A light and refined 500 Series OCLV Carbon frame with road-smoothing rear IsoSpeed. A Shimano 105 Di2 2x12-speed electronic drivetrain and powerful flat-mount disc brakes. Plus, wide Bontrager Paradigm Comp 25 tubeless-ready wheels, internal storage and cable routing that add to the bike's capability and sleek look. An added top tube mounts let you secure bags for longer rides without bulky straps and bungees.

The final word

All the road-smoothing benefits of a carbon Domane, with fully wireless Shimano 105 Di2 shifting. This bike is comfortable, fast, light and ready for adventure – with lofty 38 mm tyre clearance that keeps you floating on tarmac roads and light gravel alike.

Why you'll love it

  1. The Domane SL Gen 4's rear IsoSpeed, integrated cables and aero Kammtail tube shapes come together for a fast, lightweight and road-smoothing ride
  2. This bike is super versatile and equally suited to all-day adventures on the open road, club rides and racing
  3. The Shimano's 105 Di2 wireless electronic drivetrain delivers precision shifts that won't leave a hole in your wallet
  4. Road-smoothing IsoSpeed and clearance for up to 38 mm tyres absorbs fatiguing bumps in the road for a smoother, more comfortable ride
  5. A convenient internal storage compartment gives you a versatile spot for stowing tools and gear, while top tube mounts let you cleanly bolt on a bag for day-long adventures

Colour: Lunar Silver

*Please note – spec applies to all sizes unless listed separately


Frame 500 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, mudguard mounts, flat mount disc, 142x12 mm thru axle
Fork Domane SL carbon, tapered carbon steerer, internal brake routing, mudguard mounts, flat-mount disc, 12x100 mm thru axle

Weight 56 - 8.90 kg / 19.63 lbs (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 105 R7170, 12-speed
Front derailleur Shimano 105 R7150 Di2, braze-on, down swing
Rear derailleur Shimano 105 R7150 Di2, 36T max cog
*Crank Size: 44, 47
Shimano 105 R7100, 50/34, 165 mm length
Size: 50, 52
Shimano 105 R7100, 50/34, 170 mm length
Size: 54, 56
Shimano 105 R7100, 50/34, 172.5 mm length
Size: 58, 60, 62
Shimano 105 R7100, 50/34, 175 mm length
Bottom bracket Praxis, T47 threaded, internal bearing
Cassette Shimano 105 7101, 11-34, 12-speed
Max. chainring size 1x: 48T, 2x: 52/36


*Saddle Size: 44, 47, 50, 52
Verse Short Comp, steel rails, 155 mm width
Size: 54, 56, 58, 60, 62
Verse Short Comp, steel rails, 145 mm width
*Seatpost Size: 44, 47, 50, 52, 54, 56
KVF aero carbon seat post, 20 mm offset, 280 mm length
Size: 58, 60, 62
KVF aero carbon seat post, 20 mm offset, 320 mm length
*Handlebar Size: 44, 47
Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 36 cm width
Size: 50
Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 38 cm width
Size: 52
Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 40 cm width
Size: 54, 56
Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 42 cm width
Size: 58, 60, 62
Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 44 cm width
Handlebar tape Bontrager Supertack Perf tape
*Stem Size: 44
Trek RCS Pro, -7-degree, 60 mm length
Size: 47
Trek RCS Pro, -7-degree, 70 mm length
Size: 50
Trek RCS Pro, -7-degree, 80 mm length
Size: 52, 54
Trek RCS Pro, -7-degree, 90 mm length
Size: 56, 58
Trek RCS Pro, -7-degree, 100 mm length
Size: 60, 62
Trek RCS Pro, -7-degree, 110 mm length
Brake rotor Shimano RT70, CentreLock, 160 mm
Rotor size Max brake rotor sizes: 160 mm front and rear

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.