The Marin Alpine Trail XR 29 is crafted for riders who crave the thrill of technical trails but demand a bike that climbs efficiently and descends with confidence. At its core, the Series 3 aluminum frame blends durability with lightweight responsiveness, designed to handle the rigors of aggressive trail riding while maintaining nimble handling characteristics.
Featuring modern trail geometry, the Alpine Trail XR boasts a slack head tube angle and a low bottom bracket, creating a stable platform for descending technical terrain at speed. Meanwhile, the short chainstays and 29” wheels ensure quick acceleration and agile maneuverability on tight switchbacks and rugged singletrack.
Up front, the RockShox Recon Silver RL fork with 140mm travel offers excellent bump absorption with Motion Control damping and a lockout option, so riders can dial in the suspension for both efficient climbs and confident descents. The Boost 15x110mm axle adds stiffness and strength, improving front-end precision.
The drivetrain is a wide-range Shimano Deore 1x12-speed setup equipped with a Shadow+ clutch rear derailleur for crisp, secure shifts and reduced chain slap—critical for trail riding. The 10–51T cassette provides enough gearing to conquer steep climbs without sacrificing speed on flats or descents. A narrow-wide 32T chainring on a forged Marin alloy crankset simplifies shifting and enhances chain retention on rough terrain.
Braking control comes from Shimano MT420 hydraulic disc brakes, paired with 180mm rotors front and rear, ensuring reliable modulation and stopping power in all weather conditions and trail scenarios.
Durability and traction are assured with Marin’s aluminum double-wall rims and Maxxis Minion DHF 29x2.5” tires, tubeless-ready to allow lower pressures for improved grip and comfort while minimizing flats.
A TranzX dropper post with 125mm of travel is standard, giving riders the freedom to lower their saddle instantly for better control on descents and technical sections, and then raise it back up for efficient pedaling.
The Alpine Trail XR 29 is a capable and versatile trail bike built for riders who want to push their limits on technical climbs, rugged trails, and fast descents — all while enjoying a balanced, stable ride that inspires confidence and control.
