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18 sales tracked since 1 Jun 2026 · 6 for sale now
Every 2021 390 Adventure that's come off Autotrader since 1 Jun 2026, with its final asking price and how long it took to sell.
What each 2021 390 Adventure variant sold for (filled dots) and what the 6 for sale are asking (rings), with monthly medians drawn through them. Click a dot to open the bike.
Solid lines: median sold price per month (3+ sales). Dashed lines: median asking price of bikes currently for sale, by the month they were listed. 1 bike listed before the chart starts is not shown.
By month sold, all variants
How long sold bikes were listed
How many bikes were listed each day since tracking began
Asking price range, with the median marked
Listings added and sold each month
6 live listings from Autotrader · from £2,700 · median £3,098
Sold and asking prices against mileage. Each dot is a bike; click one to open it.
What 2021 KTM 390 Adventure bikes sell for and how many are on Autotrader UK right now. Updated 19 Oct 2026.
The median asking price for a used 2021 KTM 390 Adventure on Autotrader UK is £3,098, across 6 bikes for sale as of 19 Oct 2026. The 18 2021 KTM 390 Adventure bikes recorded as sold since 1 Jun 2026 went for a median of £3,295.
The median 2021 KTM 390 Adventure sells within 34 days of being listed on Autotrader, based on 18 recorded sales.
There are 6 used 2021 KTM 390 Adventure bikes for sale on Autotrader UK as of 19 Oct 2026. Autotrender has recorded 18 sales of 2021 KTM 390 Adventure bikes so far.
Autotrender records every KTM 390 Adventure listing on Autotrader UK twice a day and groups them by registration year. A bike counts as sold when its advert is removed, and its sold price is the final asking price before it came off; days to sell run from the advert's listing date to its removal. Medians are used throughout, and figures are only stated once at least 5 sales have been recorded.
Recomputed after every Autotrader scan. Month-by-month trends across all years: KTM 390 Adventure market report ·