# Triumph Thunderbird 900 UK sold prices and market trends

Updated 19 Oct 2026. Source: Autotrender, https://autotrender.co.uk/make/triumph/model/thunderbird-900?channel=bikes

## Summary

As of 19 Oct 2026, there are 9 used Triumph Thunderbird 900 bikes for sale on Autotrader UK, with a median asking price of £3,494. In the last 30 days, 4 Triumph Thunderbird 900 bikes have sold. 6 new Triumph Thunderbird 900 listings appeared over the same period, so supply is growing.

In September 2026, the median sold price for a used Triumph Thunderbird 900 was £3,499, up 13.0% on August 2026's £3,098 (5 sales). 5 bikes sold in September 2026 compared with 12 in August 2026. The number for sale rose 14.3% to 8 by the end of September 2026. Over the last 90 days the median sold price was £3,250, up 12.3% on the previous 90 days (£2,895).

Autotrender has recorded 34 Triumph Thunderbird 900 sales on Autotrader since 28 May 2026, with final asking prices from £1,425 to £4,250 and a median of £3,100. The typical Triumph Thunderbird 900 took 22 days to sell.

## Monthly statistics

Prices are GBP medians. "Sold" is the number of Triumph Thunderbird 900 adverts removed from Autotrader that month.

| Month | Median asking price | Median sold price | Sold | Median days to sell | New listings | For sale at month end |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| June 2026 | £3,373 | £3,195 | 6 | 19 | 7 | 8 |
| July 2026 | £2,750 | £2,750 | 8 | 14 | 7 | 7 |
| August 2026 | £3,250 | £3,098 | 12 | 21 | 12 | 7 |
| September 2026 | £3,600 | £3,499 | 5 | 35 | 6 | 8 |
| October 2026 (so far) | £3,494 | — | 3 | — | 4 | 9 |

## Questions and answers

### What is the average used Triumph Thunderbird 900 price in the UK?

The median asking price for a used Triumph Thunderbird 900 on Autotrader UK is £3,494, across 9 bikes for sale as of 19 Oct 2026. Across all 34 recorded sales the median sold price is £3,100.

### Are used Triumph Thunderbird 900 prices going up or down?

Triumph Thunderbird 900 sold prices were up 13.0% month on month: the median went from £3,098 in August 2026 to £3,499 in September 2026.

### How long does a used Triumph Thunderbird 900 take to sell?

The median used Triumph Thunderbird 900 sells within 22 days of being listed on Autotrader, based on 34 recorded sales.

### How many used Triumph Thunderbird 900 bikes are for sale in the UK?

There are 9 used Triumph Thunderbird 900 bikes for sale on Autotrader UK as of 19 Oct 2026. Supply was up 14.3% in September 2026 compared with the end of August 2026 (7). In the last 30 days 6 were newly listed and 4 sold.

### How does Autotrender work out Triumph Thunderbird 900 sold prices?

Autotrender records every Triumph 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.

## About this data

Autotrender (https://autotrender.co.uk) tracks used bike listings on Autotrader UK and publishes sold prices, price history and supply trends by make and model. Figures on this page are recomputed after every scan. Licence: CC BY-NC 4.0; please cite Autotrender and link to https://autotrender.co.uk/make/triumph/model/thunderbird-900?channel=bikes.