Trek Farley AL Frameset
In-Store Pickup Only
Fully assembled, tuned, and test-ridden—ready to ride at pickup from our shop.
Product Data
SKU:
5292423
5292423
UPC/EAN:
601479115204
601479115204
Farley AL is a high-value platform for your fat bike build. This lightweight Alpha Platinum Aluminum fat bike frameset has the ride characteristics of a traditional trail bike, with all the monster truck capability that comes with fat bike tires. Plus, you get tons of mounts for adding accessories like racks, fenders, and gear cages.
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- All the mounts make it easy to add accessories and customize Farley for how you want to roam
- It's a four-season freedom machine that lets you ride outside all year long
- You can run your choice of wheels with 26x5" or 27.5x4" tires
- The faster you ride a fat bike, the more fun it gets — and this bike is a lot of fun
Adventure-ready fork
Farley's new, short-offset OCLV carbon fork puts you in an optimal position over the front wheel, upping traction over sketchy terrain while allowing for a shorter stem. A custom rack mount on the crown and thoughtfully positioned triple bottle bosses (64mm spacing) on the lower legs let you gear up without sacrificing handling. Protective rubber bumpers on the bottom of the fork legs keep Farley upright and manageable when the front wheel needs to come off.
Keep it clean
Internal routing helps to protect Farley's components from the elements and makes it easy to mount gear
Haul of the wild
Mounts all over the frame let you carry a wide variety of gear with endless customization options. Gummy bears? Extra layers? Camping gear? Haul it all.
A better way to produce aluminum
Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.
| Frame | Alpha Platinum Aluminum, tapered head tube, top tube bag mounts, strapless full frame bag mounts, downtube fender mount, lower downtube accessory mount, seat stay rear rack mounts, internal rear derailleur & dropper post routing, 100mm threaded BB, UDH, 197x12mm |
| Fork | Farley carbon, tapered alloy steerer, crown rack mounts, lower leg cage mounts, 150x15mm thru axle |
| Skewer Front | Bontrager Switch thru axle |
| Skewer Rear | Bontrager Switch thru axle, removable lever |
| Seat Collar | Bolt-on, 36.4mm |
| Headset | FSA IS-2, 1-1/8'' top, 1.5'' bottom |
Geometry Chart
| B B Drop | 6.5 |
| B B Height | 32 |
| Chainstay Length | 45 |
| Eff Seat Tube Angle | 74.0° |
| Eff Top Tube | 56.5 |
| Frame Reach | 40 |
| Frame Size Letter | S |
| Frame Stack | 58.9 |
| Head Angle | 68.5° |
| Head Tube Length | 9 |
| Offset | 4.2 |
| Seat Tube | 38 |
| Seat Tube Angle | 72.5° |
| Standover | 73 |
| Trail | 10.7 |
| Wheelbase | 109.7 |
| Wheel Size | 27.5" |
| Color | MERCURY |