Marin Alpine Trail XR 29 - Silver-Black - 2025

★★★★★ 4.2 56 reviews

US$1,469.70
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US$1,469.70
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Product details

Management number 235943373 Release Date 2026/07/09 List Price US$1,469.70 Model Number 235943373
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Marin Alpine Trail XR 29

The Alpine Trail series is our boldest and most capable line of enduro bikes ever, built upon our most advanced, most adjustable frames to date.

Series 4 aluminum MultiTrac 2 LT frames feature mixed 29”/27.5” wheels, 170mm front and 160mm rear travel, and the utmost in adjustability. Riders can alter the head tube angle and bottom bracket/chainstay length, as well as run 29” rear wheels if desired. “Bear Box” downtube storage includes a zippered nylon bag to house trail essentials, and a 34.9mm seatpost increases strength and is compatible with the latest dropper posts.

"XR" = "Xtra Rad" here at Marin, and like the XR models that have preceded the new Alpine Trail, we created a model for the more discriminating rider. We focused our efforts on building a bike with high performance RockShox Ultimate-level suspension, a SRAM GX Eagle Lunar 12-speed drivetrain and DB8 4-piston brakes - all equipment that helps the rider level up, but without blowing the budget. Don't forget the Maxxis rubber and our proprietary CNC machined 35mm stem and matching Trail Bar.

Key Upgrades:

  • RockShox Zeb Ultimate/RockShox Super Deluxe Ultimate suspension
  • SRAM GX Eagle Lunar drivetrain
  • SRAM DB8 4-Piston hydraulic disc brakes
  • Maxxis Assegai Tires
  • Marin Trail Bar & CNC Stem

Specifications:

  • Frame

    All New Series 4 6061 Aluminum, 29” Wheels, 160mm Travel MultiTrac LT Suspension Platform, Integrated Downtube Storage, Adjustable Headset & CS Length/BB Height, Full Internal Cable Routing, Chainstay Mounted Post Mount Disc Brake, 148x12mm Boost Thru- Axle, 73mm Threaded BB w/ ISCG05 Tabs

  • Front Suspension

    RockShox Zeb Ultimate, 170mm Travel, 29", 110x15mm Maxle Stealth, 44mm Offset

  • Rear Suspension

    RockShox Super Deluxe Coil Ultimate, 205x65, 30xM8 Lower Hardware, Custom Tune, Spring Rates S/M: 350lbs, L/XL:450lbs

  • Rim

    Marin, Double Wall Alloy, 29mm Inner, Sleeved Joint, Disc Specific, 32H, Tubeless Compatible

  • Hub Rear

    Formula, DCL-3482, 148x12, 4 Sealed Bearings, 6-Bolt Disc, XD Driver, 32H

  • Hub Front

    Formula, DC-711, 110x15mm, 6-Bolt Disc, 32h

  • Spokes

    14g Black Stainless Steel

  • Tires

    Maxxis Assegai MAXX GRIP, Front 29x2.5 EXO+, Rear 27.5x2.5" DoubleDown, Tubeless compatible

  • Derailleur Rear

    SRAM GX Eagle Lunar 12-Speed

  • Derailleur Front

    -

  • Shift Lever

    SRAM GX Eagle Lunar MMX Mount

  • Crankset

    SRAM GX Eagle, 32T, 55MM CL, 170MM Length

  • Bottom Bracket

    SRAM DUB MTB 73

  • Chain

    SRAM NX Eagle

  • Cassette

    SRAM GX 1275 T-Type 10-52T

  • Brakes Front

    SRAM DB8 4-Piston Hydraulic Disc, HSC 200mm Rotor

  • Brakes Rear

    SRAM DB8 4-Piston Hydraulic Disc, HSC 200mm Rotor

  • Brake Levers

    SRAM DB8 Hydraulic

  • Handlebar

    Marin Trail, 35mm Clamp, 7000 Alloy Bar, 800mm Length, 20mm Rise, 5 Degree Up, 8 Degree Back

  • Stem

    Marin CNC, 35mm Length, 35mm Bar Bore

  • Grips

    Marin Grizzly Lock-On

  • Headset

    FSA Custom, Adjustable HTA Design

  • Seatpost

    TranzX, YSP39 1x Remote, 34.9 Seatpost Diameter, Travel S = 150mm, M/L = 170mm, XL = 200mm

  • Saddle

    Marin Speed Concept

  • Pedals

    -

  • Extras

    Bolt-On 12mm Thru-Axle, 174mm Length, 1.0 Thread Pitch, 16.5mm, Tapered Head

  • Extras

    Downtube Storage Bag

Specifications, pricing, and availability are subject to change without notice.

Geometry

Geometry configuration

  • Front/Rear Wheels: F: 29"/R: 27.5"
  • BB and Chainstay: High BB/Short CS
  • Headtube Angle: 0° Headset Cup
Alpine Trail XR geometry diagram
S M L XL
STACK 620.08 633.51 642.6 646.93
REACH 430 460 490 520
HEADTUBE ANGLE 63.5° 63.5° 63.5° 63.5°
HEADTUBE LENGTH 100 115 125 130
SEATTUBE ANGLE 79.2° 79° 78.8° 78.6°
SEATTUBE LENGTH 400 420 430 460
TOPTUBE EFFECTIVE 556 592 626 659
BB HEIGHT 352 352 352 352
BB DROP (REAR/FRONT) 7/24 7/24 7/24 7/24
CHAINSTAY 435 435 435 435
WHEELBASE 1211.42 1248.11 1282.57 1317.8
STANDOVER HEIGHT 683.32 68 9.88 695.6 698.13
FORK OFFSET 44 44 44 44
SEATPOST DIAMETER 34.9 34.9 34.9 34.9
HANDLEBAR WIDTH 780 780 780 780
STEM LENGTH 35 35 35 35
CRANK LENGTH 170 170 170 170

All lengths in millimeters

Technology

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