The Marin Alpine Trail XR 29 is designed for riders who demand a trail bike that can tackle technical descents and steep climbs with equal confidence. Built on a lightweight yet sturdy Series 3 aluminum frame, this model delivers a precise balance of strength and agility, making it ideal for aggressive trail riding and endurance adventures.
Its modern trail geometry features a slack head tube angle for stable handling at speed, a low bottom bracket for improved cornering, and short chainstays that promote quick acceleration and nimble responsiveness. The 29” wheels paired with Boost 148x12mm rear spacing enhance stiffness and momentum, providing a smooth ride over rough terrain.
The suspension setup centers around the RockShox Recon Silver RL fork with 140mm of travel, featuring Motion Control damping and lockout. This fork offers excellent control and comfort over roots, rocks, and technical sections, while allowing riders to lock out the suspension for efficient climbing and sprinting.
The Shimano Deore 1x12-speed drivetrain ensures precise and reliable shifting across a wide gear range, with a Shadow+ clutch rear derailleur minimizing chain slap for quieter rides and improved chain retention. The 10–51T cassette combined with a narrow-wide 32T Marin forged alloy crankset offers ample gearing for steep ascents and fast flats.
Stopping power is handled by Shimano MT420 hydraulic disc brakes equipped with 180mm rotors front and rear, providing consistent, powerful braking in all conditions and terrain.
The bike’s wheels feature Marin’s aluminum double-wall rims and Boost hubs, shod with Maxxis Minion DHF 29x2.5” tires that deliver excellent grip and durability. The tubeless-ready tires allow for lower pressures, improving traction and comfort on technical trails.
Equipped with a TranzX dropper post with 125mm travel, the Alpine Trail XR allows riders to quickly adjust saddle height for better control on descents and technical terrain, making it a versatile and capable machine for serious trail enthusiasts.
