Alpine Trail Carbon 1
![2021 Marin Alpine Trail Carbon 1 profile.](https://s3.us-east-1.amazonaws.com/craft-marinbikes/images/2020/bikes/hero/_bikeHero320Wide/2021_Alpine_Trail_Carbon_1_Color.jpg)
See this bike in a different color:
- Price: $4,999.00*
- Suspension: RockShox Yari RC / Rock Shox Deluxe Select + RT
- Wheel Size : 29"
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Size Range:
S, M, L, XL
Size Rider height range S 5'3" to 5'6" M 5'6" to 5'10" L 5'10" to 6'2" XL 6'2" to 6'4"
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
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FRAME
All New Unidirectional Carbon Fiber Front Triangle, Series 4 Alloy Rear End, 29” Wheels, 150mm Travel MultiTrac Suspension Platform, Internal Dropper Post and Rear Derailleur Housing, Chainstay Mounted Post Mount Disc Brake, 148x12mm Boost Thru- Axle, 73mm Threaded BB w/ ISCG05 Tabs
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FORK
RockShox Yari RC, 29”, 160mm of Travel, Air Sprung, Debonair, Rebound and Compression Adjust, Fast Black Stanchions, 110x15mm Maxle Stealth, 42mm Offset
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REAR SHOCK
Rock Shox Deluxe Select + RT, Debonair Air Spring, 2 Position Compression Adjustment, Rebound Adjustment, 205x65mm, Trunnion Upper Mount, M8x25mm Lower Mount
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RIMS
Marin, Double Wall Alloy, 29mm Inner, Pinned Joint, Disc Specific, 32H, Tubeless Compatible
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HUB REAR
Shimano HB-MT410B, 148x12mm, Centerlock, Microspline Freehub Body
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HUB FRONT
Shimano HF-MT410B, 110x15mm, Centerlock
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SPOKE
14g Black Stainless Steel
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TIRES
Front: Maxxis Assegai 29x2.5”, MAXX TERRA, EXO+, Tubeless Compatible; Rear: Maxxis Assegai 29x2.5”, MAXX GRIP, DoubleDown, Tubeless Compatible
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DERAILLEUR REAR
Shimano Deore, 12-Speed, SGS
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DERAILLEUR FRONT
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SHIFT LEVER
Shimano Deore, 12-Speed, SL6100-IR
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CRANKSET
FSA Comet Heavy Duty, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing
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BOTTOM BRACKET
Mega EXO 73mm BSA
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CHAIN
KMC X-12 Silver and Black
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CASSETTE
Shimano, Deore M6100 12-Speed, 10-51T
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BRAKE FRONT
Shimano BR-MT420, 4-Piston Hydraulic Disc, 203mm Rotor
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BRAKE REAR
Shimano BR-MT420, 4-Piston Hydraulic Disc, 180mm Rotor
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BRAKE LEVERS
Shimano BL-M4100 Hydraulic, I-Spec EV Compatible
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HANDLEBAR
Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back
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STEM
Marin 3D Forged Alloy, 35mm
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GRIPS
Marin Single Clamp Locking
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HEADSET
FSA No 57, Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
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SEATPOST
TranzX, YSP23JL, 1x Remote, Size S 125mm Travel, Size M and L 150mm Travel, Size XL 175mm Travel, 30.9mm
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SADDLE
Marin Speed Concept
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PEDALS
Not Included
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EXTRAS
Bolt-On Thru-Axle, Downtube Protector
Specifications, pricing, and availability are subject to change without notice.
Geometry
![Alpine Trail Carbon 1 geometry diagram](https://s3.us-east-1.amazonaws.com/craft-marinbikes/images/2020/bikes/geometry/_bikeGeometry320Wide/21_MRN_GEO_ALL_MULTITRAC_1416px.jpg)
S | M | L | XL | |
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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 |
Seatpost 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
Suspension Setup
REAR SHOCK SET UP
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 SET UP
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
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 |
Reviews
Great frame geometry and suspension action, backed up by sleek carbon fibre looks and a solid suite of parts for the price.