Scott Lumen 920

What the Lumen 920 is for

The Lumen 920 is built for riders who want a full-suspension e-MTB that still feels and handles like a proper mountain bike, not a heavier trail machine with a motor bolted on as an afterthought. Scott's brief for this bike is cross-country, marathon and trail riding, and that shows in a carbon main frame paired with an alloy rear end, an integrated shock and travel figures - 140mm up front, 130mm at the back - that sit closer to a lightweight trail bike than a big-hit enduro sled. If your rides mix long climbs with technical singletrack and you want assistance without the bulk of a battery-hungry, motor-first e-MTB, this is the sort of bike that appeals.

Motor and battery: how much help, and how far

Power comes from a TQ HPR60 mid-drive motor, offering up to 60Nm of torque and cutting assistance at the UK/EU limit of 25km/h. That's a modest maximum output next to the biggest trail-focused motors, and that's deliberate: compact, lighter motors like this are part of why Scott can keep the bike's claimed weight down to around 18.5kg. The internal battery holds 360Wh, and Scott includes a separate 160Wh range extender with the bike rather than selling it as an optional add-on. It clips onto the front bottle mount, giving you nearly half as much capacity again on the days you want it, without carrying a heavier internal battery all the time; an optional sliding mount can also let you keep a water bottle in place alongside it. Scott doesn't publish a distance or riding-time figure for this battery-and-extender combination, so treat the numbers as capacity rather than a guaranteed range: how far either takes you will depend on terrain, assistance mode and rider weight, same as with any e-bike.

Suspension and control: what TwinLoc actually does

The 140mm RockShox Recon Gold RL Solo Air fork and 130mm X-Fusion Nude 5 RLX shock give a genuinely trail-capable amount of travel without pushing the bike into longer-travel territory. What's more distinctive is TwinLoc, Scott's handlebar-operated system for switching between Descend, Traction Control and full Lockout modes without reaching for a shock or fork lever. On a long fire-road climb you can firm the suspension right up for efficiency, then flick back to fully open Descend mode for the technical stuff, all without taking a hand off the grips. That kind of quick mode-switching matters more on a bike aimed at marathon and XC-style riding, where efficient climbing and confident descending both count.

Drivetrain, brakes and the rest of the build

There's only one specified UK build of the Lumen 920, so there's no build-to-build choice to make here, just a look at what you're getting. SRAM's Eagle 70 Transmission handles the 12-speed shifting with a 10-52T cassette, giving a wide enough spread for both steady motor-assisted climbing and technical trail work. Braking comes from SRAM DB4 four-piston callipers on 180mm rotors front and rear, a sensible choice given the extra weight and speed an e-MTB carries into a descent. A Syncros dropper post and tubeless-ready Alex Rims wheels round out a build that's aimed squarely at riders who already know what good trail-bike components look like, rather than at newcomers who need everything explained from scratch.

Mind the name: an earlier, different Lumen 920

If you come across a review or an older listing for a Lumen eRIDE 920, it's describing a different bike. That earlier build used a less powerful HPR50 motor, a Shimano Deore drivetrain, and treated the range extender as an optional extra rather than something included in the box. Its test results and component verdicts don't carry over to the current HPR60 bike described here, and a 2026 or 2027 label on a retailer listing doesn't by itself tell you which version you're looking at. Before buying, it's worth checking that any Lumen 920 offer actually specifies the HPR60 motor, SRAM Eagle 70 Transmission and an included 160Wh extender, since those are the details that genuinely distinguish the current bike from its predecessor.

Sizing and ownership

The Lumen 920 is offered in four sizes, S through XL. Because reach, stack and standover shift meaningfully between sizes on this frame, it's worth matching your height to the specific geometry for your chosen size rather than assuming fit from the letter alone. Scott's overall system weight limit is 130kg, and that figure covers the bike, rider, kit and anything else you're carrying, not just body weight, so it's worth keeping in mind if you ride with a loaded pack or add much extra kit. On the ownership side, Scott backs the frame and rear end with a five-year guarantee for a first owner, provided the bike is registered within a year of purchase and serviced annually through an authorised dealer; skip that servicing and the guarantee drops to three years. The integrated shock and its cable routing also mean this isn't the easiest bike to service in a home workshop, and Scott directs technical adjustment work to authorised dealers rather than treating it as a driveway job.