Scott Voltage eRIDE 900 SL

The Scott Voltage eRIDE 900 SL is built for a fairly specific rider: someone who already rides technical trails on an unassisted bike and wants an e-MTB that keeps that feel rather than swapping it for raw power. With a carbon frame, 160mm of front travel and 155mm at the rear, a claimed weight of around 17.9kg and a motor pitched well below the heaviest e-MTB systems, this is a bike built around agility and descending manners first, and climbing assistance second.

Light assistance, not maximum assistance

The TQ HPR50 motor at the heart of this build is rated at a maximum of 50Nm of torque, with UK bikes limited to 25km/h of assisted speed as standard for EU-spec e-bikes. That's noticeably less shove than the more powerful mid-drive systems fitted to heavier e-MTBs, and it's a deliberate trade-off: less torque and a smaller, lighter motor unit is a big part of why Scott can claim a tubeless weight of around 17.9kg for the whole bike, without the range extender fitted. If your priority is being hauled up the steepest fire roads with minimal effort, a higher-torque e-MTB will do that job better. If you'd rather the bike still felt like a mountain bike on the way up, and want it to disappear underneath you on the way down, the 900 SL's approach makes more sense.

Scott's TwinLoc 2 remote lets you flick the FOX 36 Float Factory fork and FOX NUDE 6T Factory EVOL shock between full 160mm/155mm travel for descending and a firmer, shorter-travel Traction Control mode, 100mm at the rear, for sustained climbing, all from one bar-mounted lever alongside the dropper control. That's a genuinely useful thing to have on a bike pitched at all-mountain riding: you get an efficient pedalling platform when you want it and full travel the moment the trail points downhill, without having to reach down and fiddle with compression dials mid-ride.

Where the 900 SL's price goes

This is the range-topping SL build on the Voltage eRIDE HPR50 platform, and the components reflect that. SRAM's XX Eagle AXS Transmission handles shifting, doing away with a conventional derailleur hanger in favour of a direct SRAM UDH mount and drawing its power from the main e-bike battery rather than a separate shifter battery. SRAM Code Ultimate Stealth four-piston brakes, paired with 200mm rotors front and rear, give the kind of stopping power a fast-rolling 29er benefits from on long descents. Syncros' Revelstoke carbon wheels, built on DT Swiss 240 hubs with SRAM TyreWiz built in, keep rotating weight down while adding a useful tyre-pressure readout. Together these are the parts that justify sitting at the top of this build range, and they're worth knowing about if you're weighing this bike against a cheaper build sharing the same frame and motor.

Battery capacity and the range extender question

The internal battery is a 360Wh TQ unit, and Scott's own build specification for the 900 SL lists an additional 160Wh range extender as part of the package, which would bring total capacity to 520Wh if fitted. However, a matching UK retail listing for this exact build states that the extender isn't actually supplied. That's a meaningful difference if you're planning longer days out and budgeting for the extra capacity, so it's worth confirming exactly what's included with any specific offer rather than assuming the higher figure applies. No fixed mileage or range claim is published for this build, so treat any capacity figure as a planning input rather than a guaranteed distance.

Sizing across S to XL

Scott builds this frame in four sizes, and a matching UK size guide gives indicative height bands running from 162cm up to 196cm across S to XL, with meaningful overlap between adjacent sizes. Because of that overlap, it's worth looking at the published reach and standover figures for your height rather than picking a size on height alone, particularly if you're near a boundary. The Duncan 1.5S dropper post's travel and the Hixon iC handlebar's rise both change by size too, from 140mm of drop and a 15mm bar rise on the smallest frame up to 210mm of drop and a 25mm rise on the two largest, so taller and shorter riders both get a cockpit set up for their frame rather than a compromise.

Buying and owning this exact build

Worth knowing before you shop: Scott doesn't currently list this specific 900 SL version in its own UK catalogue, so you're buying from existing retailer stock rather than a live manufacturer listing, and it's worth matching the fitted motor, suspension and drivetrain against what an individual offer actually states rather than relying on a seller's model-year label alone. This build uses the TQ HPR50 motor and SRAM XX AXS Transmission; a similarly named Voltage 900 Tuned uses a different HPR60 motor and shouldn't be confused with it when comparing prices. On the ownership side, Scott's frame and rear-end guarantee runs to five years provided the first owner registers the bike within ten days of purchase, and that term falls to three years if the bike isn't serviced by an authorised dealer at least annually; component guarantees are handled separately. Scott also directs installation and setup of the TQ motor system to an authorised dealer rather than treating it as a home job. None of that undoes the real appeal here, which is a genuinely light, adjustable trail bike that lets you switch from an efficient climbing mode to full-travel descending at the flick of a lever.