Description
Built for Big All-Mountain Adventures
The Marin Alpine Trail 8 is a 29″ full suspension enduro bike built for riders who demand confidence, control, and durability on long mountain days, technical descents, and aggressive trail sessions. With a 150mm MultiTrac suspension platform, 160mm Marzocchi Z1 Coil fork, and coil rear suspension, the Alpine Trail 8 delivers a planted and controlled ride when the terrain gets rough.
Designed for abuse and rowdy riding, the Alpine Trail 8 features a Series 4 6061 aluminium frame, modern enduro geometry, and large 29″ wheels for maximum rollover capability, speed, and stability. Whether you’re racing enduro or earning your downhill laps after a long climb, this bike is built to handle demanding terrain.
Key Upgrades Compared to Alpine Trail 7
- Marzocchi Z1 Coil fork and Marzocchi CR Coil rear shock
- Shimano SLX/XT 12-speed drivetrain
- TRP Slate EVO 4-piston hydraulic disc brakes
- FSA Gradient Modular crankset
Key Features
- 29″ full suspension enduro platform
- Designed for aggressive trail riding and enduro racing
- Series 4 6061 aluminium frame
- 150mm MultiTrac rear suspension
- 160mm Marzocchi Z1 Coil fork
- Marzocchi CR Coil rear shock
- Shimano XT/SLX 12-speed drivetrain
- TRP Slate EVO 4-piston hydraulic brakes
- FSA Gradient Modular 1x crankset
- Maxxis Assegai 29×2.5″ tyres with EXO+ casing
- Modern enduro geometry:
- 63.5° head tube angle
- 78° seat tube angle
- Long reach measurements
- Internal dropper post and derailleur routing
- Boost 148x12mm rear axle
- ISCG05 chain guide compatibility
- Tubeless-compatible wheel setup
Specifications
Frame
| Component | Details |
|---|---|
| Frame Material | Series 4 6061 Aluminium |
| Wheel Size | 29″ |
| Rear Travel | 150mm |
| Suspension Platform | MultiTrac |
| Rear Axle | 148x12mm Boost Thru-Axle |
| Bottom Bracket | FSA MegaEvo BB, 73mm BSA Threaded |
| Chain Guide Mount | ISCG05 |
| Cable Routing | Internal |
| Brake Mount | Chainstay Mounted Post Mount Disc Brake |
| Dropper Ready | Yes |
Suspension
Fork
| Specification | Details |
|---|---|
| Model | Marzocchi Z1 Coil |
| Travel | 160mm |
| Damper | Sweep Adjust Damper |
| Adjustments | Rebound Adjustment |
| Spring | Coil Spring |
| Stanchions | Black Stanchions |
| Axle | 110x15mm Kabolt |
| Offset | 44mm |
| Spring Rate | Medium |
Rear Shock
| Specification | Details |
|---|---|
| Model | Marzocchi CR Coil |
| Travel | 205x65mm |
| Mount | Trunnion Upper Mount |
| Lower Mount | M8x25mm |
| Adjustments | Compression + Rebound Adjustment |
| Spring Size S/M | 350lb Spring |
| Spring Size L/XL | 450lb Spring |
Wheels & Tyres
Wheelset
| Specification | Details |
|---|---|
| Rims | Marin Aluminium Double Wall |
| Rim Width | 29mm Internal |
| Joint Type | Sleeved Joint |
| Tubeless Ready | Yes |
| Front Hub | Forged Aluminium, 110x15mm |
| Rear Hub | Forged Aluminium, 148x12mm |
| Freehub | Shimano Micro Spline |
| Spokes | 14g Black Stainless Steel |
Tyres
Front & Rear:
- Maxxis Assegai 29×2.5″
- MaxxTerra Compound
- EXO+ Casing
- Tubeless Compatible
Drivetrain
| Component | Details |
|---|---|
| Rear Derailleur | Shimano XT 12-Speed SGS |
| Front Derailleur | Not Included |
| Shifter | Shimano SLX 12-Speed, I-Spec EV |
| Crankset | FSA Gradient Modular 1x |
| Chainring | 32T Direct Mount Chainring, MegaTooth Technology |
| Bottom Bracket | FSA MegaEvo BB, 73mm BSA Threaded |
| Chain | KMC X-12 Silver and Black |
| Cassette | Shimano SLX M7100 12-Speed |
| Cassette Range | 10-51T |
Brakes
Front Brake
- TRP Slate EVO 4-Piston Hydraulic Disc Brake
- 203mm Rotor
Rear Brake
- TRP Slate EVO 4-Piston Hydraulic Disc Brake
- 180mm Rotor
Brake Levers
- Shimano BL-M4100
- I-Spec EV Compatible
Cockpit
| Component | Details |
|---|---|
| Handlebar | Marin Trail 7000 Alloy Bar |
| Clamp Diameter | 35mm |
| Width | 800mm |
| Rise | 20mm |
| Sweep | 8° Back / 5° Up |
| Stem | Marin CNC Alloy |
| Stem Length | 35mm |
| Grips | Marin Grizzly Lock-On |
| Headset | FSA No.57 Sealed Cartridge Bearings, 1 1/8″ x 1 1/2″ |
Seat Components
| Component | Details |
|---|---|
| Dropper Post | X-Fusion Manic Dropper Post |
| Diameter | 30.9mm |
| Remote | 1x Composite Remote |
| Travel Size S | 125mm |
| Travel Size M/L | 150mm |
| Travel Size XL | 175mm |
| Saddle | Marin Speed Concept |
| Pedals | Not Included |
Extras
| Component | Details |
|---|---|
| Additional Equipment | Bolt-On Thru-Axle |
Geometry
| Size | S | M | L | XL |
|---|---|---|---|---|
| Stack | 619mm | 628mm | 632mm | 643mm |
| Reach | 430mm | 455mm | 480mm | 515mm |
| Head Tube Angle | 63.5° | 63.5° | 63.5° | 63.5° |
| Head Tube Length | 100mm | 110mm | 115mm | 130mm |
| Seat Tube Angle | 78° | 78° | 78° | 78° |
| Seat Tube Length | 390mm | 400mm | 425mm | 430mm |
| Effective Top Tube | 561.7mm | 589mm | 615mm | 652mm |
| Bottom Bracket Height | 342mm | 342mm | 342mm | 342mm |
| Bottom Bracket Drop | 35mm | 35mm | 35mm | 35mm |
| Chainstay Length | 430mm | 430mm | 430mm | 430mm |
| Wheelbase | 1199mm | 1229mm | 1256mm | 1297mm |
| Standover Height | 690mm | 694mm | 695mm | 698mm |
| Fork Offset | 44mm | 44mm | 44mm | 44mm |
| Seatpost Diameter | 30.9mm | 30.9mm | 30.9mm | 30.9mm |
| Handlebar Width | 780mm | 780mm | 780mm | 780mm |
| Stem Length | 35mm | 35mm | 35mm | 35mm |
| Crank Length | 170mm | 170mm | 170mm | 170mm |
All measurements are in millimeters.
Technology Highlights
Series 4 Aluminium Frame
The Alpine Trail aluminium models feature Series 4 aluminium construction with advanced forging techniques, optimized tubing, and full internal cable routing. This creates a durable and high-performance frame designed for demanding trail and enduro riding.
One-Piece Forged Rocker Link
The heart of the MultiTrac suspension system is the forged one-piece rocker link. Its increased stiffness improves rear wheel tracking and keeps suspension performance smooth and controlled under heavy loads.
Bridgeless Seatstay Design
The stiff rocker design allows for a bridgeless seatstay construction, improving tyre clearance while maintaining excellent frame stiffness and durability.
Modern Enduro Geometry
The Alpine Trail features a slack 63.5° head tube angle paired with a steep 78° seat tube angle and long reach measurements. This geometry improves climbing efficiency while providing confidence and stability on technical descents.
Sizing & Selection
Choosing the correct bike size is essential for comfort, control, and performance. The Alpine Trail’s modern enduro geometry is designed to provide a balanced riding position for aggressive trail riding and racing.
Use the geometry chart above to compare reach, stack, and frame dimensions. Riders between sizes can choose based on their preferred handling characteristics:
- Smaller size: More agile and playful handling
- Larger size: More stability and confidence at higher speeds
