2025 Marin Alpine Trail 1 Mountain Bike
The 2025 Marin Alpine Trail 1 is the gateway to Marin’s long-travel enduro lineup, delivering serious downhill capability without compromising durability or value. Built around the Series 4 aluminum MultiTrac 2 LT frame, it features mixed wheel sizing, adjustable geometry, and integrated storage.
Built to Go Big
With 170mm front and 160mm rear travel, the Alpine Trail 1 is ready for steep descents, bike park laps, and technical enduro trails. High-performance Fox suspension keeps control predictable, while Shimano’s proven Deore 12-speed drivetrain delivers reliable shifting in all conditions.
Adjustable Geometry & Integrated Storage
Riders can fine-tune the bike’s handling with adjustable head tube angle, bottom bracket height, and chainstay length. Marin’s Bear Box downtube storage includes an internal zippered bag, making it easy to carry tools and essentials on long rides.
Key Features
- Series 4 6061 aluminum MultiTrac 2 LT frame
- 170mm Fox 36 Rhythm fork
- Fox Float Performance rear shock
- Shimano Deore 12-speed drivetrain
- Tektro Slate EVO 4-piston hydraulic disc brakes
| Frame | Series 4 6061 Aluminum Frame, MultiTrac LT Suspension Platform, 160mm travel, integrated downtube storage, adjustable headset & CS length/BB height, full internal cable routing, Boost 148x12mm thru-axle, 73mm threaded BB, ISCG05 tabs |
|---|---|
| Fork | Fox 36 Rhythm, 170mm travel, 29”, GRIP damper, 110x15mm Kabolt, 44mm offset |
| Rear Shock | Fox Float Performance, 205x65mm, custom tune |
| Rims | Marin double wall alloy, 29mm internal width, tubeless compatible |
|---|---|
| Front Hub | Shimano HF-MT410B, 110x15mm, Centerlock |
| Rear Hub | Shimano HB-MT410B, 148x12mm, Centerlock, Microspline freehub |
| Spokes | 14g stainless steel |
| Tires |
Vee Tire Flow Snap Front: 29x2.6 Rear: 27.5x2.5 Top 40 Compound, Enduro Core, Tubeless Compatible |
| Rear Derailleur | Shimano Deore, 12-speed, SGS |
|---|---|
| Shifter | Shimano Deore SL-6100-IR, 12-speed |
| Crankset | FSA Comet Heavy Duty, 32T direct mount, MegaTooth, Boost spacing |
| Bottom Bracket | Mego EXO, 73mm BSA |
| Chain | KMC X-12, silver & black |
| Cassette | Shimano Deore M6100, 12-speed, 10–51T |
| Front Brake | Tektro Slate EVO 4-piston hydraulic disc, 203mm rotor |
|---|---|
| Rear Brake | Tektro Slate EVO 4-piston hydraulic disc, 180mm rotor |
| Brake Levers | Tektro Slate EVO hydraulic, I-Spec EV compatible |
| Handlebar | Marin Mini-Riser alloy, 780mm width, 28mm rise |
|---|---|
| Stem | Marin 3D forged alloy, 35mm length |
| Grips | Marin Grizzly Lock-On |
| Headset | FSA Custom, adjustable head tube angle |
| Seatpost |
TranzX YSP39 dropper post S: 150mm | M/L: 170mm | XL: 200mm |
| Saddle | Marin Speed Concept |
| Drivetrain | Shimano Deore 12-speed |
|---|---|
| Dropper Post | TranzX Remote Dropper |
| Frame Platform | Series 4 Aluminum MultiTrac 2 LT Adjustable Frame |
| Fork Technology | Fox Performance 170mm Fork |
| Extras | Integrated downtube storage bag |
Specifications subject to change without notice.
