Trek 3900
Medium demand · 0 active listings
Cyclesite Fair Value Range
Based on current UK market prices for this model
Trade-in vs Private Sale
Shop trade-in
£98
Private sale
£150
You save
£52 (53% more)
Value by Condition
Estimated market value based on current UK market prices for this model.
Excellent
Like new, minimal signs of use
£150
£150 to £200
Good
Normal wear, fully functional
£128
£128 to £170
Fair
Visible wear, may need minor work
£98
£98 to £130
Poor
Significant wear, needs repairs
£60
£60 to £80
Based on real UK market prices, updated continuously as the market moves.
See the full Trek 3900 valuation, depreciation and price history
Similar Trek models
Buying a used Trek 3900?
Check the frame number before you pay. On a Trek it is not always in the obvious place, and a bike with no readable number is a bike you cannot verify.
Still deciding between brands?
If the Trek 3900 is on your shortlist but you have not settled on it, it is worth seeing which brands UK riders compare it against, what each one gives you and what you give up.
What's your 3900 worth?
Get an instant valuation based on real market data, condition, year, and current demand.
Trek 3900 Resale Value & Market Data
The Trek 3900 has a current fair market value of £150-£200 based on current UK market prices for this model. At the mid-point of £150, this places the 3900 in the medium-demand segment of the used market.
Trek 3900 Value by Condition
Condition has a significant impact on resale value. An excellent-condition 3900 commands around £150, while good condition drops to £128 and fair condition to £98. These figures update as Cyclesite tracks new sales across the UK.
Sell Your 3900
Selling privately on Cyclesite typically nets £52 more than a shop trade-in (53% difference). With 0 active listings and medium demand, now is a reasonable time to list.