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A frame kit of the super capable Alpine Trail XR, build your dream bike from the ground up
A frame kit of the super capable Alpine Trail XR, build your dream bike from the ground up
Marin

Marin Alpine Trail XR Frame Kit - Silver/ Black

£1,699.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Marin Alpine Trail XR Frame Kit - Silver/ Black

Season:2025

Brand:Marin

Code:7376840SILBLK

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.

The Alpine Trail XR frame kit gives the rider the chassis to create the Alpine Trail that best meets their needs. All the essentials are included, from the rear shock to the headset, the rear axle and seattube collar. You bring your creativity and components to create the raddest bike on the trail.


Technical Information
  • 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, 148x12mm Boost Thru- Axle, 73mm Threaded BB w/ ISCG05 Tabs
  • REAR SUSPENSION
    RockShox Super Deluxe Coil Ultimate, 205x65, 30xM8 Lower Hardware, Custom Tune, Spring Rates S/M: 350lbs, L/XL:400lbs
  • EXTRAS
    Bolt-On 12mm Thru-Axle, 174mm Length, 1.0 Thread Pitch, 16.5mm, Tapered Head
  • EXTRAS
    Downtube Storage Bag
Sizing Information
Example of two of the 11 geomerty set up configurations

  • Front/Rear Wheels:F: 29"/R: 27.5"
  • BBand Chainstay:High BB/Short CS
  • Headtube Angle:0° Headset Cup
SmallMediumLargeX.Large
STACK620.08633.51642.6646.93
REACH430460490520
HEADTUBE ANGLE63.5°63.5°63.5°63.5°
HEADTUBE LENGTH100115125130
SEATTUBE ANGLE79.2°79°78.8°78.6°
SEATTUBE LENGTH400420430460
TOPTUBE EFFECTIVE556592626659
BB HEIGHT352352352352
BB DROP (REAR/FRONT)7/247/247/247/24
CHAINSTAY435435435435
WHEELBASE1211.421248.111282.571317.8
STANDOVER HEIGHT683.3268 9.88695.6698.13
FORK OFFSET44444444
SEATPOST DIAMETER34.934.934.934.9
HANDLEBAR WIDTH780780780780
STEM LENGTH35353535
CRANK LENGTH160160160160
  • Front/Rear Wheels:F: 29"/R: 29"
  • BBand Chainstay:High BB/Short CS
  • Headtube Angle:-.75° Headset Cup
SmallMediumLargeX.Large
STACK617.87631.56640.57645.07
REACH430.68460.18490.01519.91
HEADTUBE ANGLE63.6°63.6°63.6°63.5°
HEADTUBE LENGTH100115125130
TOPTUBE EFFECTIVE554.83590.11624.57657.3
SEATTUBE ANGLE78.6°78.4°78.1°78°
SEATTUBE LENGTH400430430460
BB HEIGHT350351351351
BB DROP26252525
CHAINSTAY435435435435
WHEELBASE1221.561256.771290.681322.78
STANDOVER HEIGHT682.06688.93695.05697.42
FORK OFFSET44444444
SEATPOST DIAMETER34.934.934.934.9
HANDLEBAR WIDTH780780780780
STEM LENGTH35353535
CRANK LENGTH160160160160
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