2024 Alpine Trail Carbon Fun² Frameset

Alpine Trail Carbon "Fun²" Frameset profile.

See this bike in a different color:

  • Price: $2,599.00*
  • Suspension: RockShox Yari RC/RockShox Deluxe Select+
  • Wheel Size : 29"
  • Frame: Carbon Fiber
  • 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.

Ready to bring the Fun?
How about bringing the Fun²?

Well, then Marin has you covered.
Our limited edition Alpine Trail Carbon Fun² frameset takes all that is great with the Alpine Trail Carbon frame, including the 150mm of smooth MultiTrac travel, and wraps it all in a wild fade of flashy paint that hearkens back to the earlier days of Marin’s storied history.

It's a great start to your bespoke build, and includes RockShox suspension, with a 160mm Yari RC up front and a Deluxe Select+ shock out back. A TranzX dropper post and lever, FSA headset, and thru axles are also included to help .

Now's time to make the bike your own, and share it with the world on the 'gram with #MyMarin


  • Frame

    Unidirectional Carbon Fiber Front Triangle, Series 4 Alloy Rear End, 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

  • Fork

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

  • Rear Suspension

    RockShox Deluxe Select+ RT, Debonair Air Spring, 2 Position Compression Adjustment, Rebound Adjustment, 205x65mm, Trunnion Upper Mount, M8x25mm Lower Mount

  • Headset

    FSA No 57, 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 170mm Travel, 30.9mm

  • Extras

    Bolt-on Thru-Axle, Downtube Protector

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


2024 Alpine Trail Carbon Fun² Frameset geometry diagram
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 690 694 695 698
Fork Offset 42 42 42 42

All lengths in millimeters


Detail image of Alpine Trail Carbon tube


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.


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
Alpine Trail rocker link detail.


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.


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 Alpine Trail's slack 63.5° head tube angle.


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.

Suspension 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.


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 manufacturer.

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 shock setup
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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