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Marin Alpine Trail E2 Bosch
Marin Alpine Trail E2 Bosch
Marin Alpine Trail E2 Bosch
Marin Alpine Trail E2 Bosch
Marin Alpine Trail E2 Bosch

Product Description

The all-new Alpine Trail E (Bosch) is our biggest, baddest beast of a bike family. Moving one step beyond in capability from the Alpine Trail E models, the new Alpine Trial E Bosch eMTBs are constructed with all-new Series 4 aluminum MultiTrac 2 LT frames that feature significant upgrades for riders who challenge themselves with the steepest, most technical terrain, as well as those who require the maximum in range.

We've increased the travel by 10mm at both ends, now standing at 170mm (f) and 160mm (r), and relocated the pivots to the chainstays to deliver the suspension performance and tunability demanded by the longer travel. Riders have the ability to alter the head tube angle by +/- .75° by repositioning the lower headset cup while the bottom bracket height/chainstay length can be changed by the means of seatstay flip chips.

Bosch's Performance Line CX drive units twist out 85Nm of torque and are backed by large capacity 750Wh PowerTube batteries, nestled safely in the frame's downtube, giving you the largest battery in the Marin range for the biggest adventures.

The Alpine Trail E2 (Bosch) lights the wick with a premium Fox suspension pairing and Shimano's XT 12-speed drivetrain, along with our own proprietary CNC 35mm stem and Trail Bar combo.


  • Frame

    All New, Series 4 Alloy, 160mm MultiTrac Suspension LT, Adjustable Headset & CS Length/Height, Integrated Battery/Charging Port, 148mm Rear Thru-Axle

  • Front Suspension

    Fox 38 Performance Elite, 170mm Travel, 29" , 110x15mm Boost Kabolt Thru-Axle, 44mm Offset, Integrated Fox Fender

  • Rear Suspension

    Fox DHX2, Performance Elite, Low Speed Compression and Rebound Adjustment, 205x65mm, Trunnion Upper Mount, 30mmxM8 Lower Mount, S/M Spring Rate = 350lb, L/XL Spring Rate = 450lb

  • Rim

    Front: Marin Aluminum Double Wall, 29" Diameter, 32mm Inner Rim Width, Pinned Joint, Disc Specific, Tubeless Compatible; Rear: Marin Aluminum Double Wall, 27.5" Diameter, 32mm Inner Rim Width, Pinned Joint, Disc Specific, Tubeless Compatible

  • Hub Rear

    Shimano HB-TC500, 148x12mm, Centerlock, Standard Freehub Body

  • Hub Front

    Shimano FH-TC500, 110x15mm, Centerlock, 32H

  • Spokes

    14g Black Stainless Steel

  • Tires

    Vee Tire Co Attack HPL, E-Control Compound, Front 29x2.5", Rear 27.5x2.5"

  • Derailleur Rear

    Shimano XT 12-Speed, SGS

  • Derailleur Front


  • Shift Lever

    Shimano SLX 12-Speed, I-Spec EV

  • Crankset

    e*thirteen e*spec Plus Cranks, 160mm Length

  • Motor

    Bosch Performance Line CX, 85Nm, 20MPH (US, NZ)/25 km/h (Rest of World) Top Assisted Speed

  • Chain

    KMC E12S, E-Bike Specific Chain

  • Cassette

    Shimano SLX M7100 Cassette, 12-Speed, 10-51T

  • Brakes Front

    TRP DH-R EVO 4-Piston Hydraulic Disc, 203mm, 2.3mm Thick

  • Brakes Rear

    TRP DH-R EVO 4-Piston Hydraulic Disc, 203mm, 2.3mm Thick

  • Brake Levers

    TRP DH-R EVO Hydraulic

  • Handlebar

    Marin Trail, 35mm Clamp, 7000 Alloy Bar, 800mm Length, 20mm Rise, 5 Degree Up, 8 Degree Back

  • Stem

    Marin CNC, 35mm Length, 35mm Bar Bore

  • Grips

    Marin Grizzly Lock On

  • Headset

    FSA Custom Headset, 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


  • Battery

    Bosch PowerTube 750 Wh

  • Display

    Bosch BRC3100 Systems Controller

  • Switch

    Bosch BRC3300 Bluetooth Remote 22.2mm Clamp

  • Extras

    e*thirteen e*Spec Chainguide

  • Extras

    Cush Core Pro Tire Inserts, Marin Tire Sealant 300ml Bottle

  • Range, Charging Time

    31-78 miles/50-125km (Based on Rider Weight, Terrain, Climate and Level of Assist Used), 4 Hours (estimated, under ideal conditions)

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


Geometry configuration

  • Front/Rear Wheels: F: 29"/R: 27.5"
  • BB and Chainstay: High BB/Short CS
  • Headtube Angle: 0° Headset Cup
Alpine Trail E2 Bosch geometry diagram
STACK 633.51 642.46 646.93
REACH 460 490 520
HEADTUBE ANGLE 63.5° 63.5° 63.5°
TOPTUBE EFFECTIVE 591.33 626.52 659.24
SEATTUBE ANGLE 79° 78.8° 78.6°
BB HEIGHT 352 352 352
BB DROP (REAR/FRONT) 7/24 7/24 7/24
CHAINSTAY 435 435 435
WHEELBASE 1248.12 1282.57 1314.8
STANDOVER HEIGHT 712.81 721.75 732.94
FORK OFFSET 44 44 44
SEATPOST DIAMETER 34.9 34.9 34.9
STEM LENGTH 35 35 35
CRANK LENGTH 160 160 160

All lengths in millimeters


Alpine Trail E2 Bosch frame detail.


Alpine Trail E models are built upon our 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, compatible with modern coil or air shocks.

Alpine Trail E2 Bosch MultiTrac 2 LT suspension detail.


Marin developed the all-new Series 4 aluminum frame in conjunction with the new human-powered Alpine Trail models and notable new features shared between the platforms. Firstly, travel has been increased by 10mm at both ends, now standing at 170mm (f) and 160mm (r), which is also an increase of 10mm beyond the current Shimano-equipped models. MultiTrac 2 LT (“Long Travel,” 150mm+), with rear pivots relocated from the seatstays to chainstays, makes its eMTB debut and delivers the suspension performance and tunability demanded of the longer travel. With MultiTrac 2 LT, the benefits of relocating the rear pivot points from the seatstay to the chainstay become apparent, as it reduces anti-rise, allowing for better chassis control while braking, more mid-stroke support, and better feel at bottom out. Furthermore, relocation of the pivots provides the added benefit of allowing for adjustable chainstay lengths and bottom bracket heights. Ultimately, it’s a better-riding, better-performing suspension system made possible by the new pivot placement.

The Shimano-equipped Alpine Trail E features the same great, proven MultiTrac suspension technology, but optimized for the Shimano STEPS system. With this combination there is no need for platform or lockout levers, just get on and blast up the hills. 160mm front/150mm rear travel.

Marin Alpine Trail E2 chainstay flip chip.


Adjustable geometry features are new to the Alpine Trail E Bosch models—integrated chainstay flip chips and an adjustable headset yield six possible configurations to suit a variety of trails best.

Flip chips are easy to reconfigure trailside and are quickly changed using a 6mm hex wrench. They require no additional parts and incorporate laser-etched graphics that indicate the position of the chips. Furthermore, the flip chips located at the seatstay pivots alter the bottom bracket height and chainstay length (low BB/long CS setting = 347/443mm, high BB/short CS setting = 352/435mm) so that riders can perfectly dial their bike in to match the terrain they are looking to conquer.

Finally, using our proprietary headset cups and inserts, the headtube angle can be adjusted to +0.75° or -0.75° from the standard 63° position, giving the rider three options to best suit their preferences.

Alpine Trail E2 Bosch rear 3/4.


29” front and 27.5”+ rear wheel sizes are the ideal combination for the Alpine Trail E, with larger front wheel easily rolling over most any trail obstacle and offering the best cornering traction, while the burly 27.5” x 2.8” rear setup adds playfulness and enhances acceleration and braking traction.

Marin Alpine Trail E Bosch downtube guard.


Shimano models: A stout and durable rubber guard protects the chainstay, while a durable and replaceable guard on the leading edge of the drive unit keeps the internals safe from whatever the rider is likely to kick up on the trail. CushCore inserts enhance tire performance and traction while also protecting the rims on the Alpine Trail E2 and E1 models.

Bosch models: Chainstays and seatstays are protected with durable rubber guards that minimize noise and protect paint finishes. Made from a 30% fiberglass-infused nylon, similar to what is used on safety and football helmets, the moto-inspired integrated downtube guard helps deflect errant rocks, logs, or anything else riders may encounter on the trail. This guard also includes drain ports to let moisture flow from the frame. Cable ports are of an all-new design and keep the frame innards sealed. These ports use rubber membranes punctured during initial assembly and seal around the housing or hose once inserted. Out at the wheels, CushCore inserts enhance tire performance and traction while also protecting the rims on both models.

Delivery & Returns

Delivery is free for all orders over £40. Otherwise, delivery is depending on the items you plan to purchase. Once your product has shipped, it usually takes 2 to 3 business days in UK, 3 to 8 in Europe. 5 to 15 for the rest of the world. 

You can return your product up to 14 days after receiving your order. Please make sure that the products are not used or damaged.

Marin Alpine Trail E2 Bosch

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