2025 Trek Domane SL 6 Gen 4 – Road Bike
Specifications
| Specification | Details | 
| Model | Domane SL 6 Gen 4 | 
| Vehicle Category | Road Bike | 
| Application | Endurance road cycling, light gravel, racing | 
| Starting Price (2025) | $4,799.97 USD (sale), $5,149.99 USD (original) | 
| Color Options | Marianas Blue, Gravel Grey, Dark Star to Bronze Age Fade, White to Miami Green Fade | 
| Sizes | 47, 50, 52, 54, 56, 58, 60, 62 | 
Frame & Drivetrain
| Specification | Details | 
| Frame | 500 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, fender mounts, flat mount disc, 142x12mm thru axle | 
| Fork | Domane SL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle | 
| Drivetrain Compatibility | Shimano 105 Di2 R7170, 2x12-speed | 
| Dropouts | 142x12mm thru axle (R), 12x100mm thru axle (F) | 
| Crank | Shimano 105 R7100, 50/34T, 165mm (47), 170mm (50, 52), 172.5mm (54, 56), 175mm (58, 60, 62) | 
| Chain | Shimano SLX M7100, 12-speed | 
| Rear Derailleur | Shimano 105 Di2 R7150, 12-speed | 
| Front Derailleur | Shimano 105 Di2 R7150, braze-on | 
| Shifters | Shimano 105 Di2 R7170, 12-speed | 
| Cassette | Shimano 105 R7100, 11-34T, 12-speed | 
Components & Features
Rear Hub
| Specification | Details | 
| Seating | Bontrager Verse Short Comp, steel rails, 155mm width (47, 50, 52), 145mm width (54, 56, 58, 60, 62) | 
| Cargo Capacity | Internal storage, fender mounts | 
| Wheels/Tyres | Bontrager R2 Hard-Case Lite, tubeless ready, 700x32mm | 
| Wheel Size | 700c | 
| Brakes | Shimano 105 hydraulic disc, BR-R7170 flat-mount caliper, 160mm rotor | 
| Brake Levers | Shimano 105 Di2 R7170 hydraulic | 
| Handlebar | Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, internal Di2 routing, 93mm reach, 123mm drop, width: 38cm (47), 40cm (50, 52), 42cm (54, 56), 44cm (58, 60, 62) | 
| Stem | Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, length: 70mm (47), 80mm (50), 90mm (52, 54), 100mm (56, 58), 110mm (60, 62) | 
| Headset | FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom | 
| Saddle | Bontrager Verse Short Comp, steel rails, 155mm width (47, 50, 52), 145mm width (54, 56, 58, 60, 62) | 
| Seatpost | Bontrager carbon, 27.2mm, 20mm offset, length: 280mm (47, 50, 52), 320mm (54, 56, 58, 60, 62) | 
| Seatpost Clamp | Integrated, internal | 
| Grips | Bontrager Supertack Perf tape | 
| Front Hub | Bontrager alloy, sealed bearing, 12x100mm thru axle | 
| Rims | Bontrager Aeolus Elite 35, OCLV Carbon, tubeless ready, 35mm depth, 21mm inner width | 
| Spokes | Stainless steel, 14g | 
| Exterior Features | IsoSpeed, internal storage, fender mounts, tubeless ready wheels | 
| Weight | 8.90 kg (56cm, with TLR sealant, no tubes) | 

