Marin Alpine Trail XR - 2021


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The Alpine Trail is a 29” wheeled full suspension bike built for the all day enduro rider that earns their downhill fun. The Alpine Trail was built to give riders long travel with no sacrifice in pedaling efficiency, providing a bike that will outshine the competition on the climb and while still allowing you to hold it wide open on the descents.

PERFECT FOR

  • 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

WHEEL SIZE: 29"
SIZE RANGE: S, M, L, XL
SUSPENSION: 160mm/150mm

COLOR: Tan/Black/Red 

  • The Series 4 aluminum alloy frame features high end 3D forged rocker links and dropouts, paired with highly manipulated tubing, to create a rough and tumble long travel bike that is stiff, strong, and ready to take what the nastiest trails dish out.
Size

- ALPINE TRAIL TECHNOLOGY -

  • UNIDIRECTIONAL CARBON FIBER FRAME
    Alpine Trail Carbon 1 and 2 models feature high modulus carbon fiber and monocoque construction to deliver the strongest and stiffest Alpine Trail to date.

  • ONE PIECE FORGED ROCKER
    The heart of the Alpine Trail’s MultiTrac suspension is the forged one-piece rocker link. The strength and stiffness of the rocker keeps the rear of the bike tracking straight, providing smooth suspension operation under the most demanding conditions.

  • SERIES 4 ALUMINUM FRAME
    Alpine Trail models feature Series 4 aluminum frames, with detailed forgings, highly manipulated tubes, and full internal cable routing, giving the rider the highest-end alloy frame that Marin offers.

  • BRIDGELESS SEATSTAY
    The stiffness of the one-piece rocker link allows for a bridgeless seatstay design, offering zero compromises on stiffness while at the same time allowing for maximum tire clearance and short chainstays.

  • MODERN ANGLES
    The Alpine Trail has a slack 63.5º head tube angle paired with a steep 78º seat tube angle and long reach to provide the best modern trail bike experience. The bike lets you climb better than ever before, while giving you even more confidence when descending.

- Bike Sizing -

Looking for the perfect size? Checkout our handy quick reference chart below (NOTE: The chart assumes average limb and torso proportions). Not sure about your size? Just send us your measurements using our Bike Sizing form and one of our experts will help you out!

Rider Height Frame Size
5'3" to 5'6" S
5'6" to 5'10" M
5'10" to 6'2" L
6'2" to 6'4" XL

- TECHNICAL SPECIFICATIONS -

Frame Series 4 6061 Aluminum Frame, 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 RockShox Lyric Ultimate, 29", 160mm of Travel, Air Sprung, Debonair, Charger 2.1, Fast Black Stanchions, 110x15mm Maxle Stealth, 42mm Offset
Rear Suspension Rock Shox Super Deluxe Coil Ultimate RCT, Coil Spring, Climb Switch, LS Compression and Rebound Adjustment, 205x65mm, Trunnion Upper Mount, 25mmxM8 Lower Mount (S/M=300lb, L/XL=400lb)
Rim Marin Aluminum Double Wall, 29mm Inner, Sleeved Joint, Disc Specific, Tubeless Compatible
Hub Rear Shimano HB-MT510B, 148x12mm, Centerlock, Microspline Freehub Body
Hub Front Shimano HF-MT410B, 110x15mm, Centerlock
Spokes 14g Black Stainless Steel
Tires Front: Maxxis Assegai 29x2.5", MAXX TERRA, EXO+, Tubeless Compatible; Rear: Maxxis Assegai 29x2.5", MAXX GRIP, DoubleDown, Tubeless Compatible
Derailleur Rear Shimano XT 12-Speed, SGS
Derailleur Front -
Shift Lever Shimano SLX 12-Speed, I-Spec EV
Crankset FSA Gradient, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Mego EXO Spindle, Boost Spacing
Bottom Bracket BB392 EVO, 73mm BSA Threaded
Chain KMC X-12 Silver and Black
Cassette Shimano SLX M7100 Cassette, 12-Speed, 10-51T
Brakes Front Shimano MT420, 4-Piston Hydraulic Disc Brake, 203mm Rotor
Brakes Rear Shimano MT420, 4-Piston Hydraulic Disc Brake, 180mm Rotor
Brake Levers Shimano MT4100 Hydraulic Lever, I-Spec EV Compatible
Handlebar Deity Ridgeline, Stealth Finish, 35mm Clamp, 800mm Width
Stem Deity Copperhead 35mm, Black Ano
Grips Marin Single Clamp Locking
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

- MARIN GEOMETRY -

S M L XL
Head Tube Angle 63.5 63.5 63.5 63.5
Head Tube Length (mm) 100 110 115 130
Seat Tube Angle 78 78 78 78
Seat Tube Length (mm) 390 400 425 430
Top Tube Effective (mm) 561.7 589 615 652
BB Height 342 342 342 342
BB Drop 35 35 35 35
Fork Offset (mm) 44 44 44 44
Stand Over Height 714 716 732 734
Wheel Base 1199 1229 1256 1297
Chain Stay (mm) 430 430 430 430
Seat Post Diameter 30.9 30.9 30.9 30.9
Stack 619 628 632 643
Reach 430 455 480 515
Handlebar Width (mm) 780 780 780 780
Stem Length (mm) 35 35 35 35
Crank Length 170 170 170 170


- WARRANTY -

We're an authorized Marin dealer, which means that every bike we sell is backed by Marin's warranty, including a one-year complete bike warranty and a five-year frame warranty.  For full details, click here.

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