2025 Marin Alpine Trail XR AXS Mountain Bike
The 2025 Marin Alpine Trail XR AXS is a no-compromise enduro machine built around Marin’s new Series 4 aluminum MultiTrac 2 LT frame. Designed for aggressive riding, it features mixed 29”/27.5” wheels, 170mm front and 160mm rear travel, and extensive geometry adjustability.
Xtra Rad Performance
XR stands for “Xtra Rad”, and Marin delivers with RockShox Ultimate-level suspension, SRAM GX Eagle AXS wireless shifting, and powerful SRAM Code Bronze 4-piston brakes. This bike is built for hard charging, steep descents, and technical terrain.
Adjustable Enduro Geometry
Riders can fine-tune the Alpine Trail XR using adjustable head tube angle, bottom bracket height, and chainstay length. Mixed wheel setup comes standard, but the frame also supports a full 29” configuration.
Integrated Storage & Modern Details
Marin’s Bear Box downtube storage includes a zippered internal bag for tools and trail essentials. A 34.9mm seat tube improves frame stiffness and supports long-travel dropper posts.
Key Highlights
- Series 4 6061 aluminum MultiTrac 2 LT frame
- RockShox Zeb Ultimate 170mm fork
- RockShox Super Deluxe Coil Ultimate rear shock
- SRAM GX Eagle AXS wireless 12-speed drivetrain
- Mixed wheel setup: 29” front / 27.5” rear
| Frame | Series 4 6061 Aluminum, MultiTrac LT Suspension, 160mm travel, integrated downtube storage, adjustable headset & CS/BB, Boost 148x12mm thru-axle, 73mm threaded BB, ISCG05 |
|---|---|
| Front Suspension | RockShox Zeb Ultimate, 170mm travel, 29”, 110x15mm, 44mm offset |
| Rear Suspension | RockShox Super Deluxe Coil Ultimate, 205x65mm, custom tune (S/M: 350lb spring, L/XL: 450lb spring) |
| Rims | Marin double wall alloy, 29mm internal, tubeless compatible |
|---|---|
| Front Hub | Formula DC-711, 110x15mm, 6-bolt, 32h |
| Rear Hub | Formula DCL-3482, 148x12mm, XD driver, 32h |
| Spokes | 14g black stainless steel |
| Tires |
Maxxis Assegai MAXX GRIP Front: 29x2.5 EXO+ Rear: 27.5x2.5 DoubleDown |
| Rear Derailleur | SRAM GX Eagle AXS T-Type |
|---|---|
| Shifter | SRAM AXS POD MMX |
| Crankset | SRAM GX Eagle, 32T, 170mm |
| Bottom Bracket | SRAM DUB MTB 73 |
| Chain | SRAM GX Eagle T-Type |
| Cassette | SRAM GX 1275 T-Type, 10-52T |
| Front Brake | SRAM Code Bronze, 4-piston, 200mm rotor |
|---|---|
| Rear Brake | SRAM Code Bronze, 4-piston, 180mm rotor |
| Handlebar | Marin Trail Alloy, 800mm width, 20mm rise |
|---|---|
| Stem | Marin CNC, 35mm length |
| Grips | Marin Grizzly Lock-On |
| Headset | FSA Custom, adjustable HTA |
| Seatpost |
TranzX YSP39 dropper S: 150mm | M/L: 170mm | XL: 200mm |
| Saddle | Marin Speed Concept |
| Drivetrain | SRAM GX Eagle AXS 12-speed wireless |
|---|---|
| Dropper Post | TranzX Remote Dropper |
| Frame Platform | Series 4 Aluminum MultiTrac 2 LT Adjustable Frame |
Specifications are subject to change without notice.
