Holloway ratings
Four separate scores, not one blended number, so you can see what's actually driving it.
Full specs
Where the KTM 390 Adventure R 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 Adventure R has a 870mm 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 Adventure R
It runs a 90/90-21 front and a 140/80-18 rear, on Mitas Enduro Trail E07+ 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.
Compare the KTM 390 Adventure R
What we actually found
Owners report that the R specification transforms the 390 into a genuine off-road contender. Riders praise the combination of 21"/18" spoked wheels, long-travel WP suspension, and 272mm ground clearance over rough ground. The punchy 45hp single provides strong overtaking pace on tarmac links, though owners mention that slow, trials-style hill crawls require active clutch slipping due to its high-revving nature.
Pros for green laning
- Proper 21"/18" spoked wheels: equipped with full-size off-road wheel dimensions that allow fitment of genuine knobby enduro tyres for wet mud and clay lanes.
- WP suspension setup: high-spec WP XPLOR suspension provides 230mm of travel front and rear with 272mm ground clearance to clear deep rocks, roots, and steps.
- Punchy single-cylinder engine: the 399cc engine delivers 45hp and 39Nm of torque, providing eager low-to-mid punch that easily outpaces smaller 250/300 singles on open tracks.
- Advanced electronics suite: features lean-sensitive traction control (with dedicated Offroad mode) and Offroad ABS (disabling the rear wheel) via intuitive handlebar switchgear.
Cons and limitations
- Weight over true dual-sports: at roughly 176kg wet, it is significantly heavier to pick up repeatedly from muddy ruts than a dedicated trail single like a CRF300L or KLX300.
- Tall 870mm seat: combined with a wider stand-over width than a pure enduro bike, it can make flat-foot dabbing in off-camber ruts tricky for shorter riders.
- Firm, rally-style seat: the stock seat profile is firm, making prolonged road transits between distant lane networks tiring without aftermarket padding.
- High-revving engine character: the engine makes its best power higher up the rev range, requiring more active clutch slipping during ultra-slow, technical trials-style crawling.
Based on manufacturer specifications and independent motorcycle press reviews.
Find where to actually ride it
Browse legal green lanes and byways across England and Wales, filtered by difficulty, on Holloway's map.
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