Marin Alpine Trail 1 MX - Brown-Blue - 2025

The Alpine Trail series represents Marin’s most advanced and adjustable enduro bikes, built for aggressive riding and all-out performance. The Series 4 aluminum MultiTrac 2 LT frame features a mixed-wheel setup (29” front / 27.5” rear), 170mm front and 160mm rear travel, and a host of adjustability options, including head tube angle, bottom bracket height, and chainstay length. The Bear Box downtube storage keeps essentials secure, while a 34.9mm seatpost ensures compatibility with modern dropper posts.

The Alpine Trail 1 MX might be the entry-level model in the lineup, but it doesn't compromise on performance. Fox suspension keeps things under control, while Shimano Deore 12-speed components ensure smooth shifting. TRP Slate Evo 4-piston brakes with 203mm rotors deliver powerful, fade-free stopping power.

Key Features

• Series 4 Aluminum Frame – Durable and lightweight, with internal cable routing, downtube storage, adjustable geometry, and a 148x12mm Boost axle.
• MultiTrac 2 LT Suspension – 160mm of rear travel for improved chassis control, braking support, and bottom-out feel.
• Fox 36 Rhythm Fork (170mm) – Grip damper technology for control on rough terrain.
• Fox Float Performance Shock (160mm) – Tuned for big-hit performance and composed riding.
• Mixed Wheels (MX Setup) – 29” front for rollover efficiency, 27.5” rear for agility and cornering precision.
• Shimano Deore 12-Speed Drivetrain – Reliable and precise shifting with a 10-51T cassette.
• TRP Slate Evo 4-Piston Brakes – Fade-free stopping power with 203mm rotors front and rear.
• Adjustable Geometry – Integrated flip chips allow for 12 unique configurations, including an option for a full 29” setup.
• Bear Box Downtube Storage – Sealed, zippered storage for tools and ride essentials.

Specifications

Frame & Suspension

• Frame: Series 4 6061 Aluminum, 160mm MultiTrac LT Suspension, downtube storage, adjustable headset, adjustable CS length/BB height, internal cable routing, ISCG05 tabs, Boost 148x12mm
• Fork: Fox 36 Rhythm, 170mm, Grip Damper, 29”, 110x15 Kabolt, 44mm offset
• Shock: Fox Float Performance, 205x65mm, custom tune, 30xM8 lower hardware

Wheels & Tires

• Rims: Marin Double Wall Alloy, 29mm Inner, Tubeless Compatible, 32H
• Hubs: Shimano HB-TC500 (Front: 110x15mm, Rear: 148x12mm, Micro Spline Freehub Body)
• Spokes: 14g Black Stainless Steel
• Tires: Vee Tire Co. Snap WCE – 29x2.6" front, 27.5x2.6" rear, Top 40 Compound, Enduro Core, 90 TPI, Tubeless Compatible

Drivetrain

• Rear Derailleur: Shimano Deore 12-Speed, SGS
• Shifter: Shimano Deore SL-6100-IR, 12-Speed
• Crankset: FSA Comet Heavy Duty, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing
• Bottom Bracket: FSA MegaExo 73mm BSA
• Cassette: Shimano Deore M6100, 12-Speed, 10-51T
• Chain: KMC X-12, Silver and Black

Brakes

• Front Brake: TRP Slate EVO, 4-Piston Hydraulic Disc, 203mm Rotor
• Rear Brake: TRP Slate EVO, 4-Piston Hydraulic Disc, 203mm Rotor
• Brake Levers: TRP Slate EVO Hydraulic, I-Spec EV Compatible

Cockpit & Controls

• Handlebar: Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back
• Stem: Marin 3D Forged Alloy, 35mm
• Grips: Marin Grizzly Lock-On
• Headset: FSA Custom, Adjustable HTA Design

Seat & Extras

• Seatpost: TranzX YSP39 1x Remote, 34.9mm, Travel: S = 150mm, M/L = 170mm, XL = 200mm
• Saddle: Marin Speed Concept
• Pedals: Not included
• Extras: Bolt-On 12mm Thru-Axle, Downtube Storage Bag

Technology

• MultiTrac 2 LT Suspension – Optimized pivot placement for improved suspension performance, reducing anti-rise and enhancing mid-stroke support.
• Adjustable Geometry – 12 configurations via flip chips, adjustable headset, and 29” rear wheel compatibility.
• Bear Box Downtube Storage – Built-in storage with a weather-sealed nylon bag for trail essentials.
• Adjustable Headtube Angle – Custom headset cups allow for +0.75° or -0.75° adjustments from the stock 63° headtube angle.
• Frame Protection – Durable chainstay and seatstay guards, integrated downtube protection, sealed cable exits, and a mudflap over the lower pivot.
• One-Piece Rocker Link – Maximizes frame stiffness and suspension performance while enhancing clearance.

The Marin Alpine Trail 1 MX is built for serious enduro riders looking for big travel, aggressive geometry, and full adjustability in a capable aluminum package. Whether you're charging technical descents or shredding bike park laps, this bike is designed to push your limits while offering all-day rideability.