Alpine Trail 7

2021 Marin Alpine Trail 7 profile.

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  • Price: $2,569.00*
  • Suspension: RockShox Yari RC / Rock Shox Deluxe Select + RT
  • Wheel Size: 29"
  • Frame: Aluminum
  • Size Range: S, M, L, XL

Manufacturer’s suggested retail price may not include additional shipping or preparation charges. Please contact your local Marin dealer for a quote.

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.

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 Yari RC, 29”, 160mm of Travel, Air Sprung, Debonair, Compression and Rebound Adjustment, Fast Black Stanchions, 110x15mm Maxle Stealth, 42mm Offset

  • Rear Suspension

    Rock Shox Deluxe Select + RT, Debonair Air Spring, 2 Position Compression and Rebound Adjustment, 205x65mm, Trunnion Upper Mount, 25mmxM8 Lower Mount

  • Rims

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

  • Hub, Rear

    Shimano HB-MT410B, 148x12mm, Centerlock, Microspline Freehub Body

  • Hub, Front

    Shimano HF-MT410B, 110x15mm, Centerlock

  • Spoke, Nipples

    14g Black Stainless Steel

  • Tires

    Vee Tire Flow Snap, 29x2.6”, Tackee Compound, 72 TPI, Tubeless Compatible

  • Derailleur, Rear

    Shimano Deore, 12-Speed, SGS

  • Derailleur, Front

    -

  • Shift Lever

    Shimano Deore, 12-Speed, SL-7100R

  • Crankset

    FSA Comet Heavy Duty, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing

  • Bottom Bracket

    Mega EXO 73mm BSA

  • Chain

    KMC X-12 Silver and Black

  • Cassette

    Shimano, Deore M6100 12-Speed, 10-51T

  • Brake, Front

    Shimano MT420, 4-Piston Hydraulic Disc Brake, 203mm Rotor

  • Brake, Rear

    Shimano MT420, 4-Piston Hydraulic Disc Brake, 180mm Rotor

  • Brake Levers

    Shimano MT4100 Hydraulic Lever, I-Spec EV Compatible

  • Handlebar

    Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back

  • Stem

    Marin 3D Forged Alloy, 35mm

  • Grips

    Marin Single Clamp Locking

  • Headset

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

  • Seatpost

    TranzX, YSP23JL, 1x 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

Geometry

Alpine Trail 7 geometry diagram
S M L XL
Stack 619 628 632 643
Reach 430 455 480 515
Head Tube Angle 63.5° 63.5° 63.5° 63.5°
Head Tube Length 100 110 115 130
Seat Tube Angle 78° 78° 78° 78°
Seat Tube Length 390 400 425 430
Top Tube Effective 561.7 589 615 652
BB Height 342 342 342 342
BB Drop 35 35 35 35
Chain Stay 430 430 430 430
Wheel Base 1199 1229 1256 1297
Stand Over Height 714 716 732 734
Fork Offset 44 44 44 44
Seat Post Diameter 30.9 30.9 30.9 30.9
Handlebar Width 780 780 780 780
Stem Length 35 35 35 35
Crank Length 170 170 170 170

All lengths in millimeters

Technology

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.

Learn More
Detail of the one piece rocker link on the Alpine Trail mountain bike

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.

Detail of the tire clearance that the one piece forged rocker link allows for

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.

Detail shot of the slack 63.5° head tube angle

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.

Air Charts

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.

FORK SETUP

Marin recommends that all bikes front and rear suspension feel balanced

Step 1: After rear sag is set follow the recommended pressure from the fork manufacture.

Step 2: Bounce evenly up and down on the bike, cycling the suspension up and down to make sure both front and rear suspension feel balanced, if the front does not match the rear add or release pressure.

Step 3: Once the bike feels balanced adjust the rebound damping to ensure proper control.

Rock Shox Deluxe Select + RT

Rider weight and air pressure
LBS KG PSI
120 54 80
130 59 100
140 64 115
150 68 130
160 73 140
170 77 150
180 82 160
190 86 170
200 91 180
210 95 190
220 100 200
230 104 210
240 109 220
250 113 230
260 118 240
270 122 250

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