Trek Domane SL 6 Gen 4 (2025)

Ideal for you!

Even if your rides start on asphalt, it doesn't mean they can't end on a less-traveled road. You're looking for a bike that balances versatility, comfort, and speed. For you, the look is as important as reliability, and you appreciate the high-tech nature of the Shimano 105 Di2 electronic drivetrain and the stopping power of the hydraulic disc brakes. The carbon frame and rear IsoSpeed decoupler will make every ride a dream experience.

The technology you get

Light and sophisticated OCLV 500 Series carbon frame with rear IsoSpeed decoupler for absorbing road bumps. Shimano 105 Di2 2x12-speed electronic drivetrain and powerful flat-mount disc brakes. Additionally, wide Bontrager Paradigm Comp 25 tubeless-ready wheels, internal storage, and cable routing improve both performance and the bike’s look. Additional attachment points on the top tube allow you to secure bags for longer rides, without the need for straps or elastics.

The final word

All the comfort benefits of a carbon Domane combined with a fully wireless Shimano 105 Di2 drivetrain. Comfortable, fast, and light: this bike is ready for adventure. The tire clearance allows you to install tires up to 38mm to float over both paved roads and light gravel.

Here’s why you’ll love it

• On the Domane SL Gen 4, the rear IsoSpeed decoupler, integrated cables, and aerodynamic Kammtail tube shapes come together to create a fast, light, and comfortable road bike. This bike is incredibly versatile, suitable for long rides on open roads, group outings, and competitions.
• The wireless Shimano 105 Di2 drivetrain offers precise shifting without breaking the bank. The IsoSpeed decoupler smooths the road while the generous tire clearance allows for tires up to 38mm, helping absorb the challenging road imperfections, making the ride smoother and more comfortable.
• The practical internal storage provides a versatile solution for tools and equipment, while the attachment points on the top tube allow for a bag to carry everything you need for longer adventures.

FRAME KIT

• Frame: OCLV 500 Series Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, fender mounts, flat-mount disc, thru-axle 142x12mm
• Fork: Domane SLR carbon, tapered carbon steerer, internal brake routing, fender mounts, flat-mount disc, thru-axle 12x100mm

WEIGHT

• Weight: 56 - 8.90 kg / 19.63 lbs (with TLR sealant, without inner tube)
• Weight limit: This model has a maximum combined weight limit (bike, rider, and gear) of 125kg (275 lbs).

DRIVETRAIN

• Shifter: Shimano 105 R7170, 12-speed
• Front Derailleur: Shimano 105 R7150 Di2, braze-on, low clamp
• Rear Derailleur: Shimano 105 R7150 Di2, max cog 36T
• Crankset:
  - Size: 44, 47 - Shimano 105 R7100, 50/34, 165mm length
  - Size: 50, 52 - Shimano 105 R7100, 50/34, 170mm length
  - Size: 54, 56 - Shimano 105 R7100, 50/34, 172.5mm length
  - Size: 58, 60, 62 - Shimano 105 R7100, 50/34, 175mm length
• Bottom Bracket: Praxis, T47 threaded, internal bearing
• Cassette: Shimano 105 7101, 11-34, 12-speed
• Chain: Shimano SLX M7100, 12-speed
• Max chainring size: 1x: 48t, 2x: 52/36

WHEELS

• Front Wheel: Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, thru-axle 100x12mm
• Rear Wheel: Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, Shimano 11/12-speed freehub, thru-axle 142x12mm
• Front Axle: Bontrager Switch Thru-Axle, removable lever
• Rear Axle: Bontrager Switch Thru-Axle, removable lever
• Tire: Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 120tpi, 700x32mm
• Tire Component: Bontrager TLR Sealant, 6oz
• Nipple Protector: Bontrager TLR
• Max Tire Size: 38mm without fenders, 35mm with fenders

COMPONENTS

• Saddle:
  - Size: 44, 47, 50, 52 - Verse Short Comp, steel rails, 155mm width
  - Size: 54, 56, 58, 60, 62 - Verse Short Comp, steel rails, 145mm width
• Seatpost:
  - Size: 44, 47, 50, 52, 54, 56 - Bontrager Aero KVF Carbon Seatpost, 20mm offset, 280mm length
  - Size: 58, 60, 62 - Bontrager Aero KVF Carbon Seatpost, 20mm offset, 320mm length
• Handlebar:
  - Size: 44, 47 - Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 cable routing, 75mm reach, 128mm drop, 36cm width
  - Size: 50 - Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 cable routing, 75mm reach, 128mm drop, 38cm width
  - Size: 52 - Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 cable routing, 75mm reach, 128mm drop, 40cm width
  - Size: 54, 56 - Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 cable routing, 75mm reach, 128mm drop, 42cm width
  - Size: 58, 60, 62 - Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 cable routing, 75mm reach, 128mm drop, 44cm width
• Handlebar Tape: Bontrager Supertack Perf Tape
• Stem:
  - Size: 44 - Trek RCS Pro, -7 degrees, 60mm length
  - Size: 47 - Trek RCS Pro, -7 degrees, 70mm length
  - Size: 50 - Trek RCS Pro, -7 degrees, 80mm length
  - Size: 52, 54 - Trek RCS Pro, -7 degrees, 90mm length
  - Size: 56, 58 - Trek RCS Pro, -7 degrees, 100mm length
  - Size: 60, 62 - Trek RCS Pro, -7 degrees, 110mm length
• Brake Rotor: Shimano RT70, Centerlock, 160mm
• Max Rotor Size: 160mm front and rear

The manufacturer reserves 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. The prices shown are the manufacturer's suggested retail prices.