Trek Domane AL 4 2021
Domane AL 4 Disc combines the smooth, comfortable qualities of an advanced alloy frame with the performance of higher-quality parts. It features an upgraded drive train and crisp hydraulic disc brakes for a fast road bike perfect for competitive group rides and even races.
Spe
Frame
100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, DuoTrap S-compatible, flat-mount disc, 142x12 mm thru axle
Fork
Domane AL carbon, tapered alloy steerer, internal brake routing, mudguard mounts, flat-mount disc, 12x100 mm thru axle
Wheels
Front hub
Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle
Rear hub
Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle
Rim
Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21 mm width, Presta valve
Spokes
14 g stainless steel
Tyre
Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 c
Drivetrain
Shifter
Shimano Tiagra R4725, short-reach lever, 10-speed
Front derailleur
Shimano Tiagra 4700, 31.8 mm clamp
Rear derailleur
Shimano Tiagra 4700, long cage, 34T max cog
*Crank
Size: 44
Shimano Tiagra 4700, 50/34, 165 mm length
Size: 49, 52
Shimano Tiagra 4700, 50/34, 170 mm length
Size: 54, 56
Shimano Tiagra 4700, 50/34, 172.5 mm length
Size: 58, 61
Shimano Tiagra 4700, 50/34, 175 mm length
Bottom bracket
Shimano RS500, 68 mm, threaded external
Cassette
Shimano 10-speed, 11-32T
Chain
Shimano Tiagra HG54, 10-speed
Components
*Saddle
Size: 44, 49, 52
Bontrager P3 Verse Comp, steel rails, 155 mm width
Size: 54, 56, 58, 61
Bontrager P3 Verse Comp, steel rails, 145 mm width
*Seatpost
Size: 44, 49
Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 250 mm length
Size: 52, 54, 56, 58, 61
Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
*Handlebar
Size: 44, 49
Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 38 cm width
Size: 52
Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 40 cm width
Size: 54, 56
Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 42 cm width
Size: 58, 61
Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 44 cm width
Handlebar tape
Bontrager Supertack Perf tape
*Stem
Size: 44
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
Size: 49
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
Size: 52, 54
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Size: 56, 58
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Size: 61
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length
Head set
FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Brake
Shimano Tiagra hydraulic disc
Brake rotor
Shimano RT66, 160 mm, 6-bolt
Why you'll love it
- A light, comfortable frame and quality parts make it an amazing platform for long, fast group rides
- The unique IsoSpeed Carbon fork, which swoops forward toward the dropouts, absorbs vibrations from the road so your arms won't fatigue as quickly
- Hydraulic disc brakes give you more precise and consistent stopping power in any conditions
- Bigger tyre clearance lets you run wider tyres for more traction and stability on rail trails and other light gravel roads
- DuoTrap S compatibility makes it easy to wirelessly track your rides, so you can set goals and watch yourself reach them