About The Trek Roscoe Gen 4 Frameset

The Trek Roscoe Gen 4 Frameset is a hardtail trail frame built from Alpha Platinum Aluminum, designed around 27.5" Plus or 29" wheels on a geometry that's slacker and more aggressive than a typical XC hardtail. With clearance for wide tires, a 150mm fork travel spec, and a 65.0° head angle, this is a frame built for loose, chunky singletrack where you want tire volume and trail geometry, not race efficiency.

The Gen 4 adds UDH (Universal Derailleur Hanger) for AXS and Shimano Linkglide compatibility, internal routing for both derailleur and dropper post, integrated frame storage, and a bolt-on downtube guard. The threaded bottom bracket is a welcome detail — no press-fit complications on a hardtail that may see more abuse than a dedicated XC race sled. ISCG 05 mount allows a chain guide for rowdier terrain. The 148x12mm thru axle and tapered headtube (ZS/IS) are current standards that simplify the build.

Who It's For

  • Riders who want a trail-geometry hardtail with wide tire clearance and a modern component spec
  • Budget-conscious builders who want a hardtail that can handle real trail riding, not just gravel or XC tracks
  • Riders who plan to run a 1x drivetrain with dropper post — internal routing for both is built in
  • Not ideal for: XC race builds or riders who need full suspension for technical terrain

What to Look For

  • Fork: Spec'd for a 150mm travel fork — run a quality trail fork, not an XC fork
  • UDH: Built-in UDH supports SRAM AXS and Shimano Linkglide rear derailleurs directly
  • Threaded BB: BSA threaded shell — a durable, serviceable standard that simplifies crankset selection
  • Integrated storage: Frame bag/storage built in — works best with compatible packs

Key Features

Frame — Alpha Platinum Aluminum, Hardtail: Slack trail geometry (65.0° head angle) built for 150mm fork travel, ISCG 05 chain guide mount, threaded BB, UDH, bolt-on downtube guard, and integrated storage. Wide tire clearance for trail-appropriate rubber.

Fork — Not Included: Designed for a 150mm travel fork. Headset standard: ZS headset (FSA Orbit, 1-1/8" top, 1.5" bottom, 1.5" crown).

Compatibility — Boost148 / 12mm Thru Axle / Threaded BB: Boost148 rear spacing, 12mm thru axle, threaded bottom bracket shell, UDH for modern 1x drivetrains. 36.4mm bolt-on seat collar.

Routing & Mounts: Internal routing for derailleur cable and dropper post. ISCG 05 mount. Integrated frame storage. Downtube guard included.

Rider Intent Summary

  • Biggest strengths: Slack trail geometry, wide tire clearance, threaded BB, UDH, internal dropper and derailleur routing, integrated storage, low build complexity
  • Tradeoffs: Hardtail only — no suspension for rider comfort on technical terrain; weight will exceed a carbon hardtail
  • What makes it different: The Gen 4 combines modern standards (UDH, internal routing, threaded BB, Boost148) with trail geometry and a low entry price — a genuinely trail-capable hardtail platform at a reasonable cost

Victory's Take

At Victory Bicycle Studio, the Roscoe Gen 4 is a frame we often recommend to riders making their first real mountain bike build — the modern standards, slack geometry, and built-in routing make it a platform that won't need to be replaced when you upgrade components down the road.

What you get

  • Frame - Alpha Platinum Aluminum, trail hardtail, 150mm fork
  • Fork - Not included
  • BB - BSA threaded, UDH
  • Tires - Wide 27.5+ / 29" clearance
  • Axle - Boost148 12mm thru axle
Roscoe F/S M 29 Lava

Trek

Trek Roscoe Gen 4 Frameset

Regular price $699.99 USD
Sale price $699.99 USD Regular price $699.99 USD

Specifications

Frameset
Frame

Alpha Platinum Aluminum, tapered head tube, ZS headset, internal derailleur & dropper post routing, ISCG 05, threaded BB, UDH, 148x12mm thru axle

Wheels
Rear Thru Axle

Bontrager Switch thru axle, removable lever

Max Tire Size

Frame: 29x2.60", Fork: See manufacturer

Drivetrain and Brakes
Max Chainring Size

1x: 34T, min 28T

Max Brake Rotor

Frame: 203mm, min 180mm, Fork: See fork manufacturer

Cockpit
Headset

FSA Orbit, sealed cartridge bearing, 1-1/8" top, 1.5" bottom, 1.5" crown

Additional Information
Weight

M - 2.25 kg / 4.97 lbs (excluding bag)

Weight Limit

300 lbs (136 kg) maximum total weight (rider, bicycle, and cargo)

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.