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6 sales tracked since 21 Jul 2026 · 1 for sale now
Every 125 SX that's come off Autotrader since 21 Jul 2026, with its final asking price and how long it took to sell.
What each 125 SX variant sold for (filled dots) and what the 1 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.
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
1 live listing from Autotrader · from £4,490 · median £4,490
Sold and asking prices against mileage. Each dot is a bike; click one to open it.
Month-by-month sold prices, asking prices, time to sell and supply for used KTM 125 SX bikes on Autotrader UK. Updated 19 Oct 2026.
As of 19 Oct 2026, there is 1 used KTM 125 SX bike for sale on Autotrader UK, with a median asking price of £4,490. In the last 30 days, 1 KTM 125 SX bike has sold.
There have not yet been enough KTM 125 SX sales in a single month to read a month-on-month price trend; 6 sales have been recorded so far.
Autotrender has recorded 6 KTM 125 SX sales on Autotrader since 28 May 2026, with final asking prices from £3,895 to £7,049 and a median of £5,075. The typical KTM 125 SX took 61 days to sell.
| Month | Median asking | Median sold | Sold | Days to sell | New listings | For sale at month end |
|---|---|---|---|---|---|---|
| June 2026 | £7,049 | – | 0 | – | 2 | 3 |
| July 2026 | £4,593 | – | 1 | – | 2 | 4 |
| August 2026 | £5,500 | – | 2 | – | 2 | 4 |
| September 2026 | – |
| – |
| 2 |
| – |
| 0 |
| 2 |
| October 2026 so far | – | – | 1 | – | 0 | 1 |
|---|
The median asking price for a used KTM 125 SX on Autotrader UK is £4,490, across 1 bike for sale as of 19 Oct 2026. Across all 6 recorded sales the median sold price is £5,075.
There have not yet been enough KTM 125 SX sales in consecutive months to call a direction; Autotrender has recorded 6 sales so far and the trend will appear here as more come through.
The median used KTM 125 SX sells within 61 days of being listed on Autotrader, based on 6 recorded sales.
There is 1 used KTM 125 SX bike for sale on Autotrader UK as of 19 Oct 2026. In the last 30 days 0 were newly listed and 1 sold.
Autotrender records every KTM listing on Autotrader UK twice a day (since 28 May 2026). 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 months with fewer than 5 sales are not used to call a trend.
Recomputed after every Autotrader scan. Plain-text version for citation: /make/ktm/model/125-sx/report.md · About Autotrender