Marin Alpine Trail 1 Full Suspension Mountain Bike - 2025

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4001971
  • Series 4 aluminium MultiTrac 2 LT frame
  • 170mm front & 160mm rear travel
  • Mixed 29"/27.5" wheel size
Stock Status:
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Built with care: Our mechanics fully assemble your bike before it's carefully packaged and shipped to you.

At Tweeks Cycles, we ensure your bike arrives fully assembled and, most importantly, well packaged so it arrives with you as it left us.

Upon delivery, simply unpack it, attach any included pedals (believe it or not, some bikes don’t come with pedals!), adjust the handlebars, and you're ready to ride!

It’s all super simple!

BUT! Please take extra care when fitting any pedals that are provided with your bike. Pedals are side specific and MUST be fitted to the correct side of the bike. They are usually clearly labelled Left and Right. Failure to do so will permanently damage the bike, void the bikes warranty and lead to many tantrums, for children or grown children alike!

Comprehensive 14-Point Inspection

Each bike undergoes a meticulous 14-point inspection to guarantee optimal condition and performance:

  • Ensure Cycle is free of any mechanical damage, paint chips or missing parts
  • Grease seat tube, secure seat clamp, make sure the saddle is level and ensure all fixings are secure
  • Ensure handlebar, stem and brake/gear levers are secured
  • Assess headset for play or tightness
  • Ensure handlebar tape or grips are fitted securely
  • Ensure wheel nuts, quick-release levers or through axles are tightened (please note: some adult mountain bikes come with the front wheel removed for transport), true the wheels for optimal alignment and check wheel bearings for proper adjustment
  • Inflate tyres to the correct pressure
  • Ensure front and rear brakes operate correctly. Bleed hydraulic brakes if required
  • Ensure pedal threads are greased
  • Test all gears to ensure smooth operation
  • Check suspension system for correct operation and ensure bolts are tight (if required)
  • Ensure smooth bottom bracket rotation with no free play and secure crank bolts
  • Check cable/house routing and that cable ends are fitted
  • Install reflectors and bell

This thorough process ensures your bike is in peak condition upon arrival. We do not fit mudguards or other accessories prior to shipping as these are likely to be damaged in transit.

Note on Electric Bikes

Due to shipping restrictions, in some circumstances you may receive your new electric bike and its battery separately. This is due to carriage restrictions on some removable batteries.

Note on Balance Bikes

Balance bikes are shipped unassembled, allowing you to enjoy the building experience and retain the original packaging-perfect for gifting.

Details

Conquer challenging trails with the Marin Alpine Trail 1. Equipped with adjustable geometry, premium suspension, and precise braking, it's designed for control and performance on demanding terrain.

Key Features and Benefits:

  • Adjustable Geometry for Tailored Rides: Fine-tune the head tube angle, bottom bracket height, and chainstay length. Achieve optimal control and comfort for diverse terrains.
  • Premium Fox Suspension: The 170mm Fox 36 Rhythm fork and 160mm Fox Float rear shock absorb rough terrain. Stay steady and in control through every descent.
  • Durable Series 4 Aluminium Frame: Engineered for strength and adjustability, this frame supports 29” front and 27.5” rear wheels. Enjoy durability and versatility for your rides.
  • Integrated Downtube Storage: Includes a convenient zippered nylon bag to store your essentials. Stay prepared without extra baggage on the trail.
  • High-Performance TRP Slate EVO Brakes: Four-piston hydraulic brakes with 203mm rotors deliver fade-free stopping power. Maintain confidence and safety at high speeds.
  • Shimano Deore 12-Speed Drivetrain: Offers a wide 10-51T gear range for effortless climbs and fast descents. Smooth, reliable shifting for any trail condition.

Take your mountain biking to the next level with features designed for power, precision, and adaptability. Built for enduro riders who demand performance, this bike provides the confidence to tackle any challenge with ease.

Gear up and experience the trails with superior handling, premium components, and rugged versatility. Marin Alpine Trail 1 is ready when you are.

Size - Rider height range

  • S: 5'2" to 5'6"
  • M: 5'6" to 5'10"
  • L: 5'10" to 6'2"
  • XL: 6'2" to 6'5"
Specification

FrameAll 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, 148x12mm Boost Thru- Axle, 73mm Threaded BB w/ ISCG05 Tabs
Front SuspensionFox 36 Rhythm, 170mm Travel, 29", Grip Damper, 110x10 Kabolt, 44mm Offset
Rear SuspensionFox Float Performance, 205x65, 30xM8 Lower Hardware, Custom Tune
RimMarin, Double Wall Alloy, 29mm Inner, Pinned Joint, Disc Specific, 32H, Tubeless Compatible
Hub RearShimano HB-TC500, 148x12mm, Micro Spline Freehub Body
Hub FrontShimano FH-TC500, 110x15mm
Spokes14g Black Stainless Steel
TyresVee Tire Co. Snap WCE, 29x2.6" Front 27.5x2.6" Rear, Top 40 Compound, Enduro Core, 90 TPI, Tubeless Compatible
Derailleur RearShimano Deore, 12-Speed, SGS
Shift LeverShimano Deore, 12-Speed, SL-6100-IR
CranksetFSA Comet Heavy Duty, Modular 1x, 32T Direct Mount Chainring, MegaTooth Technology, Boost Spacing
Bottom BracketFSA MegaExo 73mm BSA
ChainKMC X-12 Silver and Black
CassetteShimano, Deore M6100 12-Speed, 10-51T
Brakes FrontTRP Slate EVO, 4-Piston Hydraulic Disc, Resin Pads, 203mm Rotor
Brakes RearTRP Slate EVO, 4-Piston Hydraulic Disc, Resin Pads, 203mm Rotor
Brake LeversTRP Slate EVO Hydraulic, I-Spec EV Compatible
HandlebarMarin Mini-Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back
StemMarin 3D Forged Alloy, 35mm
GripsMarin Grizzly Lock-On
HeadsetFSA Custom, Adjustable HTA Design
SeatpostTranzX, YSP39 1x Remote, 34.9 Seatpost Diameter, Travel S = 150mm, M/L = 170mm, XL = 200mm
SaddleMarin Speed Concept
ExtrasBolt-On 12mm Thru-Axle, 174mm Length, 1.0 Thread Pitch, 16.5mm, Tapered Head
ExtrasDowntube Storage Bag

Size L, M, S, XL

BrandMarin Bikes
MPN(s)737513001, 737513002, 737513003, 737513004

Customer Reviews
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Finance

Our Payment Options

Maestro Mastercard Visa PayPal V12 Retail Finance

Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.

Finance Options

In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.

D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance and Klarna. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.

Delivery & Returns

UK Mainland Delivery Prices

Delivery Type Cost Estimated Delivery Time
Standard Delivery for orders under £49.99 from £1.33 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)
Standard Delivery for orders over £49.99 Free
Bike Delivery Free 3-5 working days from day of despatch *(Excludes weekends and Bank Holidays)
Express Delivery from £1.68 1-2 working days from day of despatch(Excludes weekends and Bank Holidays)
Special Delivery from £12.54 For any next working day delivery order before 4.30pm Monday to Thursday.
For any weekend delivery order before 4.30pm Friday

* Bike Delivery Info

A bike has to go though a Pre Delivery Inspection (PDI Check) prior to despatch, ensuring the bike is thoroughly checked and set up prior to you receiving. This also means an express delivery service is unavailable. We strive to despatch bikes within 3-5 working days. Please note this may change over school holidays and the festive season (November/December). For more information on the process please visit our pre-build page.

For international shipping please visit our delivery page.

For information about returning an item please visit our returns page.