Marin Alpine Trail E2 Electric Mountain Bike 2027

The Alpine Trail E Bosch is our biggest, baddest beast of a bike family, with 170mm of suspension up front, 160mm of MultiTrac 2 travel at the rear and a Bosch CX drive unit at its core, the Alpine Trail E is constructed  for riders who challenge themselves with the steepest, most technical terrain, and maximum range for big days in the mountains.

We’ve not skimped on performance – RockShox's Zeb Select+ fork and Vivid Air Select+ shock are ultra-adjustable. 170mm of buttery-smooth travel up front matches the rear shock’s custom-tuned damper, flawlessly fettled for our 160mm travel MultiTrac 2 LT suspension design.

SRAM's Eagle 70/90 Transmission has bombproof reliability and direct-mount simplicity – expect crisp shifts and minimal fuss. WTB's burly Sportterra Tough i30 wheelset is built to handle serious abuse. Schwalbe's Radial Gravity casing Magic Mary tires stick to the trail and reduce buzzy vibrations. Adjust the X-Fusion Manic HC dropper post’s travel in 10mm increments – dial in your perfect fit. Maven Bronze brakes take the strain out of your fingers with epic stopping power. The E 2 crushes trails, not your bank account.

The Alpine Trail has evolved. Now with cleaner integration, Bosch’s latest motor and a slimmed-down look, it’s 3lb (1,345g) lighter. We kept what worked, and improved what mattered. Optimized tube shapes, a redesigned rocker link and brand-new chainstays add up to impressive savings.

The real magic is in what we didn't sacrifice – the frame is burlier and more capable than before while being lighter and sleeker. It wouldn’t be a Series 4 Aluminum frame without weather-sealed internal cable routing, SRAM’s UDH, Boost axle spacing and chunky chainstay protection. Three sets of bottle bosses inside the front triangle give you the flexibility to fit a bottle, tools, tubes or a PowerMore range extender. Big senders assemble – there’s now 37mm more ground clearance for the wildest descents and monster hucks.

Lock in your personal set-up with adjustable geometry. Swap out the upper headset cup for ±0.75-degrees of adjustment – go slack for fast descents or steepen it up for tight tech. Chainstay flip chips adjust bottom bracket height and chainstay length to find your sweet spot and own it. Mixed wheels – 29in up front, 27.5in out back – beautifully combine stability and agility.

The MultiTrac 2 LT suspension system balances progression, support and suppleness. Whether you’re railing berms, hunting for traction or just sending it to flat, the design’s neutral predictability has your back.

Transform steep climbs into joyrides with Bosch's groundbreaking Gen 5 Performance Line CX motor now with an extended Boost mode. Tap into a 600 per cent support ratio, 750 watts and 120Nm of torque fueled by a potent 800Wh battery – fitted to every Alpine Trail E model and frame size from small to extra-large. On- or off-bike charging, mid-ride battery swaps and travel are easy thanks to its removable design. Want to save weight? Drop in Bosch's 600Wh unit instead, without needing any extra parts. Chasing maximum range? Bolt on the 250Wh PowerMore range extender. Track your ride stats with Bosch's 2in color Kiox 400C display, cleanly integrated into every model’s top tube, down to the E 1. There are no compromises here.

Why Bosch? Proven rattle-free ride and immense, natural feeling power are hard to ignore. Bosch’s proven reliability means few issues and its global warranty and service network give you peace of mind.

Engage your afterburners – the Alpine Trail E is our biggest, boldest enduro eMTB ever.