Trek Domane AL 2 Gen 4 2025 - Road Bike
The Domane AL 2 Gen 4 is a confident and comfortable alloy road bike, perfect for newer riders who want smooth shifting, disc brake control, and versatility to take on everything from tarmac to gravel and longer rides.
Key Features
- 100 Series Alpha Aluminium frame with endurance-focused geometry
- Domane AL carbon fork with tapered carbon steerer
- Shimano Claris R2000 2x8-speed drivetrain
- Tektro C550 mechanical disc brakes, flat mount
- Bontrager Paradigm SL wheels with R1 32mm tyres
- Rack, mudguard and top tube mounts add versatility
- Available with 0% APR finance
The Trek Domane AL 2 Gen 4 is a superb choice for anyone starting their road cycling journey. Built around a lightweight 100 Series Alpha Aluminium frame, it offers a stable and predictable ride feel with geometry that encourages comfort and confidence. Sleek internal cable routing and clean frame lines give it a premium look that punches above its price point.
Up front, a carbon fork with a tapered steerer absorbs vibration and improves handling—especially helpful for newer riders or those looking to stay comfortable over longer distances. The Shimano Claris R2000 2x8 drivetrain provides simple, reliable shifting and gearing that covers a wide range, from flat terrain to punchy hills.
Braking is handled by Tektro C550 mechanical disc brakes, delivering solid stopping power in all weather conditions. The Bontrager Paradigm SL wheels and 700x32mm Bontrager R1 tyres give a smooth ride with plenty of cushioning, and there’s clearance for even larger tyres—up to 38mm—if you plan to explore more off-tarmac routes.
Practicality is built-in with rack and mudguard mounts, plus a top tube mount for bags, making the Domane AL 2 ideal for commuting, fitness rides, or weekend escapes. It’s a versatile and approachable bike with all the core features you need to enjoy road riding—and grow with your cycling ambitions.
Occasionally, without notice, manufacturers change product design and/or specifications.
| 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 |
| Stem | Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
| Bars | Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 36 cm control width, 40 cm drop width // Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 38 cm width |
| Front Brake | Tektro C550 mechanical disc brake, dual piston, flat mount // Tektro C550 mechanical disc brake, dual piston, flat mount |
| Rear Brake | Tektro C550 mechanical disc brake, dual piston, flat mount // Tektro C550 mechanical disc brake, dual piston, flat mount |
| Front Mech | Shimano Claris R2000, 31.8 mm clamp |
| Rear Mech | Shimano Claris R2000, medium cage, 34T max cog |
| Speed | 16 |
| Rims | Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve |
| 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 |
| Front Tyre | Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm |
| Rear Tyre | Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm |
| Seat Post | Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 250 mm length |
| Saddle | Verse Short, steel rails, 145 mm width |
| Chainset | Shimano RS200, 50/34 (compact), 165 mm length |
| Bottom Bracket | Shimano UN300, 68 mm, threaded cartridge, 110 mm spindle |
| Chain | Shimano Sora HG71, 8 speed |
| Cassette | Shimano HG31, 11-32, 8-speed |
Trek Domane AL Gen 4 Sizing Guide
| Size | Height cm | Height Feet / Inches | Inseam cm | Inseam Inches |
|---|---|---|---|---|
| 44 | 150 - 153 cm | 4'11" - 5'0" | 71 - 73cm | 28" - 29" |
| 49 | 158 - 163 cm | 5'1" - 5'4" | 74 - 77 cm | 29" - 30" |
| 52 | 163 - 168 cm | 5'4" - 5'6" | 76 - 79 cm | 30" - 31" |
| 54 | 168 - 174 cm | 5'6" - 5'9" | 78 - 82 cm | 31" - 32" |
| 56 | 174 - 180 cm | 5'9" - 5'11" | 81 - 85 cm | 32" - 33" |
| 58 | 180 - 185 cm | 5'11" - 6'1" | 84 - 87 cm | 33" - 34" |
| 60 | 185 - 190 cm | 6'1" - 6'3" | 86 - 90 cm | 34" - 35" |
What size frame do I need if I am between sizes? - read here
Trek Domane AL Gen 4 Geometry Chart
| Size | 44cm | 49cm | 52cm | 54cm | 56cm | 58cm | 61cm |
|---|---|---|---|---|---|---|---|
| Stack | 510 | 540 | 561 | 575 | 591 | 611 | 646 |
| Reach | 360 | 368 | 371 | 374 | 377 | 380 | 385 |
| Head Tube Length | 95 | 123 | 145 | 160 | 175 | 195 | 235 |
| Head Tube Angle | 70.3° | 70.8° | 71.3° | 71.3° | 71.9° | 72.0° | 72.1° |
| Bottom Bracket Drop | 80 | 80 | 80 | 80 | 78 | 78 | 75 |
| Trail | 66 | 66 | 59 | 59 | 61 | 60 | 63 |
| Fork Rake/Offset | 53 | 53 | 53 | 53 | 48 | 48 | 48 |
| Chainstay Length | 420 | 425 | 420 | 420 | 420 | 425 | 425 |
| Wheelbase | 983 | 1001 | 100.3 | 101.0 | 101.8 | 102.2 | 103.8 |
| Top Tube Length (horizontal) | 505 | 516 | 530 | 542 | 554 | 567 | 586 |
| Standover Height | 657 | 717 | 735 | 754 | 776 | 796 | 842 |
| Seat Tube Length | 390 | 440 | 475 | 500 | 525 | 548 | 576 |
| Seat Tube Angle | 74.6° | 74.6° | 74.2° | 73.7° | 73.3° | 73.0° | 72.7° |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Trek Domane AL 2 Gen 4 2025 - Road Bike
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, we offer a fast high quality service, with a range of options from free delivery on orders over £30, next day and convenient click & collect from one of our stores. Simply select within the checkout.
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 365 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.