The Trek Domane AL 5 is a speedy and versatile road bike that's a perfect starting point for anyone looking to get into road riding. With an Alpha Aluminium frame, clearance for larger tyres, a 12-speed Shimano 105 drivetrain, top tube mounts and an all-day road comfort geometry – the Domane AL 5 is perfect for casual pedalling, group rides, fast commutes and even venturing beyond tarmac roads to most gravel roads.

A totally versatile and smooth ride that's a perfect choice for your first performance road bike
Room for bigger tyres let you ride everything from smooth tarmac to most gravel roads in comfort.
Internal cable routing and an integrated cockpit provides premium looks and a clean aesthetic
Rack, mudguard and top tube mounts make it easy to carry all the gear you'll need
Powerful disc brakes allow for super fast stopping power in all conditions

Sunset Cycles offers the 2025 Trek Domane AL 5 Gen 4 endurance road bike in Matte Trek Black finish with up to 36 months 0% finance and free delivery.

The 2025 Trek DOMANE AL range: Domane AL 2 Gen 4 (Crimson) | Domane AL 2 Gen 4 (Grey) | Domane AL 5 Gen 4 (Black)

Full Specification: Trek Domane AL 5 Gen 4 (Black) 2025 Endurance Road Bike

Frameset
Frame	100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, flat-mount disc, UDH, 142x12 mm thru axle
Fork	Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle
Wheels
Front Hub	Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle
Rear Hub	Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
Rims	Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve
Tires	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
Drivetrain
Shifters	Shimano 105 R7120, 12-speed
Front derailleur	Shimano 105 R7100, 31.8 mm clamp, down swing
Rear derailleur	Shimano 105 R7100, 36T max cog
Crank (Size: 44)	Shimano 105 R7100, 50/34, 165 mm length
Crank (Size: 49,52)	Shimano 105 R7100, 50/34, 170 mm length
Crank (Size: 54,56)	Shimano 105 R7100, 50/34, 172.5 mm length
Crank (Size: 58,61)	Shimano 105 R7100, 50/34, 175 mm length
Bottom bracket	Shimano RS501 BSA
Cassette	Shimano 105 7101, 11-34, 12-speed
Chain	Shimano SLX M7100, 12-speed
Components
Saddle	Verse Short, steel rails, 145 mm width
Seatpost (Size: 44,49)	Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 250 mm length
Seatpost (Size: 52,54,56,58,61)	Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
Handlebar (Size: 44, 49)	Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 38 cm width
Handlebar (Size: 52)	Bontrager Elite IsoZone VR-SF, alloy, 31.8 mm, internal Di2 routing, 75 mm reach, 128 mm drop, 40 cm width
Handlebar (Size: 54, 56)	Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, internal Di2 routing, 93 mm reach, 123 mm drop, 42 cm width
Handlebar (Size: 58, 61)	Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, internal Di2 routing, 93 mm reach, 123 mm drop, 44 cm width
Stem (Size: 44)	Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
Stem (Size: 49)	Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
Stem (Size: 52, 54)	Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Stem (Size: 56, 58)	Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Stem (Size: 61)	Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length
Grips	Bontrager Supertack Perf tape
Brake
Brake Rotor	Shimano RT70, CentreLock, 160 mm
Weight
Weight	56 - 9.85 kg / 21.72 lbs (with tubes)

Size Guide: Trek Domane AL 5 Gen 4 (Black) 2025 Endurance Road Bike

Frame Size	Rider Height* (metric)	Rider Height* (imperial)
44	150 - 153 cm	4'11" - 5'0"
49	156 - 163 cm	5'1" - 5'4"
52	163 - 168 cm	5'4" - 5'6"
54	168 - 174 cm	5'6" - 5'9"
56	174 - 180 cm	5'9" - 5'11"
58	180 - 185 cm	5'11" - 6'1"
61	185 - 191 cm	6'1" - 6'3"
*This is for guidance only. You may be taller or shorter, it doesn't mean our bikes will not fit you. The best way to determine the correct bike size for you is to try one. Please contact us if you are in any doubt about the correct bike size for you.