Specialized Turbo Levo 4 Alloy

The Specialized Turbo Levo 4 Alloy is the lowest-priced route into Specialized's current full-power trail e-MTB. You get the 3.1 motor, an 840Wh battery and an M5 aluminium frame with mixed wheels, 150mm of rear travel and a 160mm fork on S2 to S6. It is meant for technical singletrack, steep climbs and rough descents, and it fits trail riders who want that support for weekend loops and long assisted days without buying the higher-spec alloy kit first.

It is a current UK model, with an official original UK RRP of £4,799.00. This is the Levo 4 generation sold as the Turbo Levo 4 Alloy, not the Comp Alloy, carbon or EVO builds. Some retailer listings use a 2026 year label, which is not an official manufacturer model year.

Climbing help and all-day battery

Specialized's 3.1 motor now makes 810W peak power and 105Nm of torque. Use those figures; older articles quoting 666W and 101Nm were written before the firmware change, and early non-S-Works Levo 4 bikes may still need the over-the-air update. On a steep, rooty climb that extra shove is the point of the bike. You still have to be gentle when the rear tyre is searching for grip, because full assist drains the pack faster and can spin the wheel if you get clumsy.

An 840Wh battery is fitted as standard, and Specialized claims up to five hours of riding. Assist mode, climbing and your own pacing decide how that translates to a UK trail day, so treat the claim as a generous planning figure. A 280Wh range extender and a compatible 600Wh battery are optional extras if you want more capacity or a lighter main pack; neither is on the bike when it leaves the factory. A Specialized 4amp charger is included, and the 2.2-inch MasterMind T3 colour display lets you customise assistance in the Specialized App.

How the Alloy actually rides

The Levo 4 M5 alloy frame gives you 150mm of rear travel, a Marzocchi Bomber Inline shock and adjustable head angle, bottom bracket and chainstay, so you can bias the bike toward quicker steering, more stability or better climbing traction. S1 uses a 150mm Marzocchi Bomber Z1 fork; S2 to S6 get 160mm. A 29-inch front wheel rolls over roots and holes, while the 27.5-inch rear keeps the back of the bike easier to place. Internal SWAT storage takes a tube, snacks or a multi-tool when you do not want a full pack, though bottle space in the front triangle can be tight.

That chassis is built around a claimed 26.08 kg in size S4, so it is never going to feel like a featherweight. On rough descents it stays settled, and Electric Bike Report found the mixed wheels helped the alloy platform manage its mass. Trail-centre days and steep, physical riding play to that character.

SRAM's Eagle 70 Transmission is a mechanical 12-speed with a 10-52t cassette, so the range is wide without going wireless. The DB8 Stealth four-piston brakes, with a 220mm rotor up front and 200mm at the back, are up to trail-centre speeds if you keep them serviced. Rims are 30mm internal and tubeless-ready, shod with Butcher GRID GRAVITY T9 TLR tyres, 29x2.4 in at the front and 27.5x2.4 in at the rear, but they come with inner tubes. A sealant conversion is worth doing early if you want lower pressures and fewer pinch flats. Dropper is a TranzX 34.9mm post, with travel that changes by size.

Size, weight and living with it

Frame sizes run from S1 to S6. From S2 up, the height bands overlap so you can pick a smaller size for a snappier ride or a larger one for extra stability. Match the published reach and stack to a trail bike that already fits you. No rider-height range is published for S1, so that size should not be guessed from geometry alone.

The S4 weight figure is the one to plan around for lifting, storage and locking the bike at home, and other sizes will differ. Keep the firmware current so you have the latest motor output, and use the app when you want a milder or stronger assist map. The frame can take a fork up to 180mm if you later want a more descent-focused setup, which is compatibility rather than extra travel in the box.

Choose the Turbo Levo 4 Alloy when the motor, the 840Wh pack and the adjustable mixed-wheel chassis are what you actually want from a full-power trail e-MTB. You can ride it hard on UK trail-centre loops this year, then spend on a better fork, tyres or brakes only if your riding outgrows the kit that comes fitted.