About The Trek Domane AL 5 Gen 4 Aluminum Shimano 105 Road Bike
The Trek Domane AL 5 Gen 4 is the top aluminum build in Trek's Gen 4 Domane AL line, pairing the 100 Series Alpha Aluminum frame and carbon fork with 12-speed Shimano 105 R7120 — the first generation of 105 to offer 12-speed performance at an aluminum bike price. The 12-speed cassette (11-34) provides a tight, even gear progression that meaningfully improves cadence control compared to the 8- and 11-speed tiers below it. Available in sizes 44–61cm across three colorways.
The AL 5 uses Bontrager alloy hubs with sealed bearings and centerlock disc mounts, paired with Shimano CL700 centerlock 160mm rotors. Shimano 105 R7120 shifters and R7100 rear derailleur (36T max cog) deliver the clean, predictable action 105 is known for. Tubeless-ready Paradigm 23 rims with Kwaremont Comp 700x32mm tires are shared across the AL lineup. Blendr-compatible Bontrager Elite stem and hidden cable routing are standard.
Who It's For
- Road cyclists who want 12-speed Shimano 105 on an aluminum frame
- Riders who do longer, more demanding road rides and will notice the difference in shifting quality and gear density
- Those ready to step into a groupset with strong long-term parts availability and service support
- Consider carbon: if weight is a priority — the Domane SLR offers a meaningful ride quality difference at a higher price
What to Look For
- 12-speed Shimano 105 R7120: Tightest gear steps available on an aluminum Domane; the upgrade over 8- and 11-speed is noticeable on hilly rides
- Centerlock disc: Centerlock rotors are more convenient to swap and more precisely centered than 6-bolt alternatives
- Frame platform: Same carbon fork and aluminum frame as the AL 2 and AL 4 — the investment here is in the drivetrain
Key Features
Frame & Fork — 100 Series Alpha Aluminum + carbon: UDH, 142x12mm thru axle, internal routing, fender mounts, flat mount disc. Domane AL carbon fork with fender mounts and 12x100mm thru axle.
Drivetrain — Shimano 105 R7120 12-speed: R7120 shifters, R7100 front derailleur (down swing), R7100 rear derailleur (36T max cog). 50/34 crank at 165mm, Shimano 105 7101 11-34 cassette. Shimano SLX M7100 chain.
Brakes — Shimano CL700 centerlock disc: 160mm rotors front and rear. Significantly better modulation and wet-weather performance than mechanical disc. Easier rotor centering than 6-bolt.
Wheels & Tires — Bontrager Paradigm 23 tubeless-ready: Sealed-bearing Bontrager alloy hubs (centerlock). Kwaremont Comp Hard-Case Lite 700x32mm. Ready for tubeless conversion.
Rider Intent Summary
- Biggest strengths: 12-speed Shimano 105 on aluminum; centerlock hydraulic disc; tubeless-ready wheels; Blendr stem; UDH for drivetrain upgrades
- Tradeoffs: Aluminum frame carries more weight than carbon alternatives at a similar or higher price; 700x32mm stock tires are road-focused
- What makes it different: The Domane AL 5 Gen 4 delivers 12-speed 105 shifting at an aluminum price — the practical upgrade ceiling for this chassis before moving to carbon
Victory's Take
At Victory Bicycle Studio, the Domane AL 5 is the bike we fit most often for riders who take road cycling seriously and want a proper groupset without a carbon frame. The 12-speed 105 drivetrain is an upgrade you'll notice on every ride.
What you get

Trek Domane AL 5 Gen 4 Aluminum Shimano 105 Road Bike
Frequently Asked Questions
How is the bike packaged and how long does delivery take?
All bikes are securely packaged to ensure that damage doesn't occur during shipping. All parts of the bike are padded and if needed, zip tied to minimize or eliminate movement inside the box. Once a bike is handed to the shipping company (usually Fedex or UPS), depending on your location, delivery will range from 1 day to 8 days. If you do choose the option for Professional Assembly or White Glove Delivery, this can add anywhere from 2 days to 5 days to the lead time.
Can I finance the purchase of my new bike?
Yes. Simply select the Shop Pay Installments option which will allow you to buy now and pay later. Shop Pay Installments is powered by Affirm. If you would like to determine your spending limit, simply download the Shop app or the Affirm app on your smartphone and after you create an account on one of these apps, the app will let you know what is your spending limit.
Can I return the bike if it doesn't suit my needs?
Our return process is as follows. The customer is responsible for the return label ($150). Once the returned bike arrives at our warehouse, our team will inspect it and make sure it is in new condition and undamaged. Once we verify, we will process the return and issue a refund to the original payment method on file. To clarify the amount refunded, it would just be the amount of the bike (and tax if applicable) less the $150 shipping label that we provided, but the original shipping is not refunded. So if the original bike cost $4,500 and shipping was $150 (so you paid $4,650), you would be refunded $4,350 (the $4,500 less $150 for the return label) assuming the bike was returned in new and un-used condition and within the 30 day return period.
What does the warranty of my new bike or product cover and what is the warranty period?
Depending on the bike or any product, different companies have different warranty policies. If you do ever have an issue with your bike or any product, simply email us at online@victorybicyclestudio.com and we will assist with any warranty issues and clarify the warranty for the affected product.
Can I have my bike serviced at any bike shop?
Typically, to avoid any issues with your warranty, you should bring your bike to a certified mechanic or bike store for that bike (i.e. if you have a Trek bicycle, you should bring the bike to be serviced to a local bike store that is an authorized Trek dealer). If you need assistance, simply email us at online@victorybicyclestudio.com and we can direct you to a certified dealer of your bike.
Do you ship bikes internationally?
We unfortunately do not ship bikes outside of the 48 contiguous states of the United States. We do recommend for international customers to open (or use a current account) account with a freight forwarding company. If you use a freight forwarding company located in the U.S., make sure to put your billing address for a dedicated credit card as the same address as the freight forwarder so that you don't have any credit card or payment method issues).
Once you do this, simply place an order with us and we can ship to the U.S. address as long as the credit card doesn't get rejected. Once the freight forwarder has the box/order/shipment, you would instruct them to then ship to you in your home country and they would charge you their own shipping charge to ship to your international address.
Do you offer free shipping?
We do offer free shipping on non-bike orders over $100. We do not offer free shipping for bicycles unless it is a one time promotion. Generally, bike shipping will cost $150 and that covers just the shipping of the bike with no assembly. If you were to bring that bike to your local mechanic or bike store, you would pay them their assembly fee. If you choose our Professional Assembly option for $200, our service technicians would assemble the bike before shipping and then re-pack the bike safely for transit. When you receive the bike you would attach the front wheel, attach the seatpost/saddle, and raise the handlebars and clamp them. Those three items do have to be detached to minimize or eliminate the chance of damage in transit.
How much does shipping cost?
For orders of parts, accessories, apparel, etc. on orders under $100, shipping is a flat rate of $9.99. Regular bike shipping without assembly is $150, bike shipping with Professional Assembly is an additional $200 (so $350 in total which includes the $150 of regular shipping). Our White Glove Delivery option is $699 and that will cover the assembly of the bike and our White Glove Delivery partner delivering your dream bike to your front door, ready to ride!
How can I track my order?
When you place your online order, you will receive an instantaneous email update with your order number and order details, and shortly after, you will receive a follow up order email with the tracking number for your order. If you still need assistance with your order, feel free to email us at online@victorybicyclestudio.com and we will respond asap.
What happens if my package arrives damaged?
If your package arrives damaged, email online@victorybicyclestudio.com with pictures of all angles of the box and pictures of the damaged product and we will work with you to either send a new replacement asap and coordinate return (or re-imburse you for labor or costs incurred to fix the issue at your local bike store).
Are pedals included with the bike?
If you do not see pedals in the bullet point product specs on the product page, the bike does not come equipped with pedals. Many manufacturers do not spec bikes with pedals, so they are often purchased separately.
If I only pay the $150 for bike shipping, can I assemble the bike on my own?
Victory Bicycle Studio highly recommends that you bring your bike to your local certified bike store for the brand of the bike that you purchased. If you do attempt to assemble the bike and damage occurs, this may result in your warranty not being honored. For that reason, we do highly recommend to select our Professional Assembly option for $299.