Marin Alpine Trail 1 2025 Enduro Bike

The all-new Alpine Trail series is our boldest and most capable line of enduro bikes ever, built upon our most advanced, most adjustable frames to date.

Series 4 aluminum MultiTrac 2 LT frames feature mixed 29”/27.5” wheels, 170mm front and 160mm rear travel, and the utmost in adjustability. Riders can alter the head tube angle and bottom bracket/chainstay length, as well as run 29” rear wheels if desired. “Bear Box” downtube storage includes a zippered nylon bag to house trail essentials, and a 34.9mm seatpost increases strength and is compatible with the latest dropper posts.

While the Alpine Trail 1 is the starting point in the three-model lineup, we didn’t make any concessions regarding the spec. High-performance Fox suspension keeps you in control, while a Shimano Deore 12-speed drivetrain transmits your power to the wheel. TRP’s Slate Evo 4-piston brakes feature 203mm rotors, keeping all that speed in check in a powerful, fade-free manner.

Specification

Frame	All New Series 4 6061 Aluminum, 29” Wheels, 160mm Travel MultiTrac LT Suspension Platform, Integrated Downtube Storage, Adjustable Headset & CS Length/BB Height, Full Internal Cable Routing, Chainstay Mounted Post Mount Disc Brake, 148×12mm Boost Thru- Axle, 73mm Threaded BB w/ ISCG05 Tabs
Fork	Fox 36 Rhythm, 170mm Travel, 29”, Grip Damper, 110×10 Kabolt, 44mm Offset
Rear Shock	Fox Float Performance, 205×65, 30xM8 Lower Hardware, Custom Tune
Rims	Marin, Double Wall Alloy, 29mm Inner, Pinned Joint, Disc Specific, 32H, Tubeless Compatible
Rear Hub	Shimano HB-TC500, 148×12mm, Micro Spline Freehub Body
Front Hub	Shimano FH-TC500, 110×15mm
Spokes	14g Black Stainless Steel
Tyres	Vee Tire Co. Snap WCE, 29×2.6” Front 27.5×2.6” Rear, Top 40 Compound, Enduro Core, 90 TPI, Tubeless Compatible
Rear Derailleur	Shimano Deore, 12-Speed, SGS
Shifter	Shimano Deore, 12-Speed, SL-6100-IR
Crankset	FSA Comet Heavy Duty, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing
Bottom Bracket	FSA MegaExo 73mm BSA
Chain	KMC X-12 Silver and Black
Cassette	Shimano, Deore M6100 12-Speed, 10-51T
Front Brake	TRP Slate EVO, 4-Piston Hydraulic Disc, Resin Pads, 203mm Rotor
Rear Brake	TRP Slate EVO, 4-Piston Hydraulic Disc, Resin Pads, 203mm Rotor
Handlebar	Marin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back
Stem	Marin 3D Forged Alloy, 35mm
Grips	Marin Grizzly Lock-On
Headset	FSA Custom, Adjustable HTA Design
Seatpost	TranzX, YSP39 1x Remote, 34.9 Seatpost Diameter, Travel S = 150mm, M/L = 170mm, XL = 200mm
Saddle	Marin Speed Concept
Pedals	N/A
Extras	Bolt-On 12mm Thru-Axle, 174mm Length, 1.0 Thread Pitch, 16.5mm, Tapered Head
Extras	Downtube Storage Bag

Specifications are subject to change without notice

Size Guide

Frame Size	Minimum Height	Maximum Height
Small	160cm (5’3”)	168cm (5’6”)
Medium	168cm (5’6”)	178cm (5’10”)
Large	178cm (5’10”)	188cm (6’2”)
X Large	188cm (6’2”)	195cm (6’5”)

We have developed our size guide from our selling experience and it may differ from the manufacturers guide. Please note, this is only a guide and if you have any concerns over sizing please get in contact

Geometry

Geometry configuration – 29/27.5 wheels – BB High – Chainstay Short – Headtube 0°

Frame Size	S	M	L	XL
A – Stack	620.08	633.51	642.6	646.93
B – Reach	430	460	490	520
C – Headtube Angle	63.5°	63.5°	63.5°	63.5°
D – Headtube Length	100	115	125	130
E – Seattube Angle	79.2°	79°	78.8°	78.6°
F – Seattube Length	400	420	430	460
G – Toptube Effective	556	592	626	659
H – BB Height	352	352	352	352
I – BB Drop (Rear/Front)	7/24	7/24	7/24	7/24
J – Chainstay	435	435	435	435
K – Wheelbase	1211.42	1248.11	1282.57	1317.8
L – Standover Height	683.32	68 9.88	695.6	698.13
M – Fork Offset	44	44	44	44
Seatpost Diameter	34.9	34.9	34.9	34.9
Handlebar Width	780	780	780	780
Stem Length	35	35	35	35
Crank Length	160	160	160	160

Want to compare the size of your current bike to this one? Read our Reach and Stack guide here.