Marin Bikes

Alpine Trail XR

2023 Alpine Trail XR Color

See this bike in a different color:
  • Suspension: Marzocchi Z1 Coil/Marzocchi CR Coil
  • Wheel Size: 29"
  • Frame: Aluminum
  • Size Range: S, M, L, XL

BIG ALL-MOUNTAIN DAYS WHERE TRAVEL AND GEOMETRY MATTER MOST

BUILT FOR ABUSE AND ROWDY RIDING

ENDURO-STYLE RIDING AND RACING

BIG BIKE, BIG WHEELS, BIG FUN

The Alpine Trail is a 29” wheeled full suspension bike built for the all day enduro rider that earns their downhill fun.

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Specifications

  • Frame

    Series 4 6061 Aluminum, 29” Wheels, 150mm Travel MultiTrac Suspension Platform, Internal Dropper Post and Rear Derailleur Routing, Chainstay Mounted Post Mount Disc Brake, 148x12mm Boost Thru- Axle, 73mm Threaded BB w/ ISCG05 Tabs

  • Front Suspension

    Marzocchi Z1 Coil, 160mm Travel, Sweep Adjust Damper, Rebound Adjustment, Black Stanchions, 110x15 Kabolt, 44mm Offset, Medium spring rate

  • Rear Suspension

    Marzocchi CR Coil, Compression and Rebound Adjustment, 205x65mm, Trunnion Upper Mount, M8x25mm Lower Mount, S/M 350lb Spring, L/XL 450lb Spring

  • Rims

    Marin Aluminum Double Wall, 29mm Inner, Sleeved Joint, Disc Specific, Tubeless Compatible

  • Hub, Rear

    Forged Aluminum, 148x12mm, Disc, Microspline Freehub Body

  • Hub, Front

    Forged Aluminum, 110x15mm, Disc

  • Spoke, Nipples

    14g Black Stainless Steel

  • Tires

    Maxxis Assegai 29x2.5", MAXX TERRA, EXO+, Tubeless Compatible

  • Derailleur, Rear

    Shimano XT 12-Speed, SGS

  • Derailleur, Front

    -

  • Shift Lever

    Shimano SLX 12-Speed, SL-7100

  • Crankset

    FSA Gradient, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Mega Eco Spindle, Boost Spacing

  • Bottom Bracket

    MegaEvo BB, 73mm BSA Threaded

  • Chain

    KMC X-12 Silver and Black

  • Cassette

    Shimano SLX M7100 Cassette, 12-Speed, 10-51T

  • Brake, Front

    TRP Slate EVO, 4-Piston Hydraulic Disc, 203mm Rotor

  • Brake, Rear

    TRP Slate EVO, 4-Piston Hydraulic Disc, 180mm Rotor

  • Brake Levers

    Shimano BL-M4100, I-Spec EV Compatible

  • 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 Grizzy Lock On

  • Headset

    FSA No 57, Sealed Cartridge Bearings, 1 1/8" x 1 1/2”

  • Seatpost

    X-Fusion Manic, 1x Composite Remote, Size S 125mm Travel, Size M and L 150mm Travel, Size XL 175mm Travel, 30.9mm

  • Saddle

    Marin Speed Concept

  • Pedals

    -

  • Extras

    Bolt-On Thru-Axle

  • Extras

    Downtube Protector

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

Geometry

Alpine Trail XR geometry diagram
S M L XL
Stack 619 628 632 643
Reach 430 455 480 515
Headtube Angle 63.5° 63.5° 63.5° 63.5°
Headtube Length 100 110 115 130
Seattube Angle 78° 78° 78° 78°
Seattube Length 390 400 425 430
Toptube Effective 561.7 589 615 652
BB Height 342 342 342 342
BB Drop 35 35 35 35
Chainstay 430 430 430 430
Wheelbase 1199 1229 1256 1297
Standover Height 714 716 732 734
Fork Offset 44 44 44 44
Seatpost Diameter 30.9 30.9 30.9 30.9
Handlebar Width 780 780 780 780
Stem Length 50 50 50 50
Crank Length 170 170 170 170

All lengths in millimeters

Suspension Setup

REAR SHOCK SETUP

Recommended Sag = 30%/19.5mm

Step 1: Set correct pressure in rear shock.

Step 2: Sit on the bike and cycle the suspension (*with correct riding gear).

Step 3: Reset O-ring and sit on the bike, DO NOT BOUNCE, carefully step off.

Step 4: Measure sag (from o-ring to seal of shock), If it does not match the bike’s recommended sag in millimeters repeat process.

Step 5: Adjust rebound setting to ensure proper control.

Marzocchi CR Coil

Rider weight and air pressure
LBS KG COIL LB/IN
120 54 300
130 59 300
140 64 300
150 68 350
160 73 350
170 77 350
180 82 400
190 86 400
200 91 400
210 95 450
220 100 450
230 104 450
240 109 500
250 113 500
260 118 500
270 122 500

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Want to see what the bike is capable of?

Evan Mercure puts it through it's paces!