KTM 390 Enduro R (2025/2026) specs: can you green lane it?
The KTM 390 Enduro R (2025/2026) weighs 159kg wet, has a seat height of 890mm and 272mm of ground clearance, and makes 44.3hp. Expect about 72 mpg, for a range of around 140 miles from its 9-litre tank.
8/10
Holloway Green Lane Score
A dedicated dual-sport that finally gives the 390 platform proper off-road wheels and travel, light enough to manhandle yet capable of comfortable 70mph road links. Rider ability, terrain, weather and tyre choice still move the real answer more than the bike alone does.
£5,499New, OTR
159kgWet weight
890mmSeat height
~140 miReal-world range
Holloway ratings
Four separate scores, not one blended number, so you can see what's actually driving it.
Beginner friendliness
4/5
Road usability
2/5
Technical off-road capability
4/5
Green-lane suitability
4/5
Full specs
Price (new, OTR)£5,499
Engine399cc
Power44.3hp
Torque39Nm
Weight (wet)159kg
Seat height890mm
Fuel tank9L
Real-world range~140 mi
Economy~72 mpg
Wheels (f/r)21" / 18"
Ground clearance272mm
Suspension travel (f/r)231mm / 231mm
ABSYes
Traction controlYes
Ride modesYes
Service interval9,300 miles
Licence requiredA2
Stock tyre sizes (f/r)90/90-21 / 140/80-18
Stock tyresMetzeler Karoo 4
Where the KTM 390 Enduro R (2025/2026) sits
Wet weight against ground clearance for every bike in the finder that publishes both. Light and tall, top left, is where the easiest green lane bikes sit. Tap a dot to open that bike.
Figures are manufacturer claims. Clearance is measured differently by different makers, so treat small gaps as a draw.
Will your feet reach?
The KTM 390 Enduro R (2025/2026) has a 890mm seat. Enter your inside leg for a rough idea of how much foot you'll get down when stopped.
A rough guide only. A wide seat needs more leg than a narrow one, the suspension settles 20 to 40mm under you, and boots add a little. Many bikes offer a low seat or lowering link. Sit on one before you buy.
Range against similar bikes
Real-world range from tank size and typical economy, against the bikes closest to it in weight and type. Out on the lanes, fuel stops are often further apart than on a road ride.
Range only. Hard off-road riding and headwinds use more fuel, so plan fuel stops with margin.
Tyres that fit the KTM 390 Enduro R (2025/2026)
It runs a 90/90-21 front and a 140/80-18 rear, on Metzeler Karoo 4 from the factory. 43 tyres in our Tyre Finder are made in at least one of those sizes, ranked by green lane score.
Sizes are for the standard UK model and can change between model years. Check the size on your own tyre sidewall, and ask your dealer before fitting a different size. Our size lists come from maker and retailer listings and can miss sizes, so a tyre shown for one end may still be made in your other size. Check the maker's size chart.
The 390 Enduro R is the machine off-road riders have wanted since the launch of the 390 platform. Unlike the road-biased 390 Adventure, this is a dedicated dual-sport machine with minimalist bodywork, a flat enduro seat, and full 21"/18" spoked wheels. The new 399cc engine has an eager, snappy mid-range that easily out-drags traditional 250/300 singles on steep climbs. At 159kg wet, it hits a sweet spot: light enough to haul through slimy ruts and pick up repeatedly, yet powerful enough to cruise comfortably at 70mph on the tarmac links.
Pros for green laning
Lightweight 159kg wet chassis: a true slim dirt-bike platform that is easy to pick up, turn around, and paddle through deep bogs.
Long-travel suspension: 231mm travel front and rear with 272mm ground clearance and 21"/18" wheels clears logs and ruts effortlessly.
Punchy 44.3hp single: produces 39Nm of torque with punchy low-to-mid drive that easily outperforms 250/300 singles on hill climbs.
Dedicated Offroad electronics: features lean-sensitive traction control and switchable Offroad ABS (rear off) via a compact handlebar-mounted display.
Cons and limitations
Small 9-litre fuel tank: real-world fuel range is limited to ~130-145 miles, requiring regular fuel planning on long cross-country loops.
Tall 890mm seat height: demands confidence when stopping on rutted, off-camber banks.
Minimal wind protection: a pure enduro headlight cowl offers no weather protection on cold winter dual-carriageway transits.
Firm dirt-bike seat: a narrow competition-style bench seat becomes uncomfortable after an hour of seated road riding.
Based on manufacturer specifications and independent motorcycle press reviews.
Remember: a rank here assumes reasonable stock tyres and a competent rider in decent conditions. The right tyres, or the wrong weather, can move a lane from easy to genuinely hard regardless of what bike you're on. Check a lane's own difficulty and hazards on the map before you go, don't rely on a bike score alone.
Find where to actually ride it
Browse legal green lanes and byways across England and Wales, filtered by difficulty, on Holloway's map.
