Giant mountain bikes: price by condition
| Condition | Typical |
|---|---|
| New with Tags | £630 (~$839) |
| Like New | £536 (~$713) |
| Good | £410 (~$545) |
| Fair | £284 (~$378) |
| For Parts | £158 (~$210) |
Seller-declared grades, sterling with an approximate US dollar equivalent at £1 ≈ $1.33 (July 2026). What each grade means.
What holds its value across Giant
- TCR and Propel road frames in their carbon builds, which are raced at the top level and have a following independent of the badge
- Bikes with a full Shimano groupset one or two tiers up from entry level, since the components carry much of the value
- Recent e-bike models with healthy batteries, where the battery is most of the price and its condition is the whole question
- Frames with the original paint intact, because Giant’s finishes are durable and a tidy one signals a bike that has been looked after
What pulls Giant resale value down
- Entry-level Talon and ATX models, which were built to a price and have a shallow second-hand market
- Any carbon frame that has been in a crash, since damage can be internal and invisible and no honest sale can ignore it
- Degraded e-bike batteries, which are expensive and often no longer available for older models
- Worn drivetrains sold without mention, which are a normal consumable but which buyers will price down sharply if they find it themselves
Identifying and dating yours
- The serial is stamped under the bottom bracket shell and is what any buyer will ask for before meeting you
- The model and year are usually printed on the chainstay or seat tube, and the year matters because Giant revises frames regularly
- Photograph the groupset markings on the derailleurs and shifters, since the tier of the components is most of what a used bike is worth
What lifts any mountain bike, whatever the label
Mountain bikes are priced on suspension and drivetrain, and buyers know exactly what each fork and groupset tier is worth.
- Air suspension forks recently serviced
- Higher-tier drivetrains and hydraulic brakes
- Straight frames with no cracks at the welds
- Dropper post fitted and working
And what pulls one down
- Blown or leaking suspension needing a rebuild
- Worn drivetrains requiring chain, cassette and rings
- Cracks around the head tube and bottom bracket
- Coil-sprung budget forks
Working out what yours is worth
- Compress the fork and check for oil leaks or knocking
- Note the exact fork model and drivetrain tier
- Inspect the frame welds carefully for cracks
What to state in the listing
- Frame size and the rider height it suits
- Wheel size, and hardtail or full suspension
- Fork and shock model, travel, and whether they have been serviced
- Groupset, brake type, and tyre and drivetrain condition
Size, wheel size and suspension type: “Trek Marlin 7, Large, 29er Hardtail”. Wheel size — 26, 27.5 or 29 inch — is a genuine filter and often left out. Say whether it is hardtail or full suspension in the title, since they are different bikes for different buyers.
Preparing and photographing it
- Note the frame size, wheel size and whether it is a hardtail or full suspension.
- Check the fork and any rear shock for oil weeping around the seals, and cycle the suspension through its travel.
- Inspect the frame at the welds and pivots, check the brake pads and rotors, and clean the drivetrain properly.
- The whole bike side on, drive side, in daylight
- The fork stanchions close up, showing whether they are clean and unpitted
- The drivetrain and rear derailleur, model readable
- The frame at the pivots or welds, plus tyres and brake rotors
When it sells best, and handing it over
Seasonal but less sharply than road bikes, since many ride year round. Spring is strongest, with a secondary lift in autumn. Full suspension bikes hold value better than hardtails.
Collection is normal and lets the buyer ride it. If posting, expect to remove the wheels, bars and pedals and use a proper bike box.
What buyers ask
Are Giant bikes worth less because they are so common?
They sell for sensible rather than premium prices, which is a fair reflection of scale. The engineering is the same that other brands buy in, so the bikes themselves are good.
How should I price a used e-bike?
Start from the battery. State its age, its capacity and how far it realistically goes on a charge, because a tired battery is most of the cost of putting the bike right.
How much is a Giant mountain bike worth?
Roughly £105 to £630 depending on condition, against £100 to £600 for mountain bikes generally. The identification points above are what move a listing to the top of that range.
What the fees would take elsewhere
At the mid-range £367 for a Giant mountain bike, against what the commission marketplaces would deduct:
| Platform | Fee | You keep |
|---|---|---|
| Poshmark | −£73 | £294 |
| eBay | −£50 | £317 |
| Mercari | −£37 | £330 |
| Etsy | −£24 | £343 |
| WishThrift | −£0 | £367 |
Seller-side rates verified 26 Jul 2026, percentages only — the per-order and processing charges those platforms add are excluded, so the real gap is wider.
Listing is free and there is no commission — read how to sell a mountain bike for the title, handover and timing, or the general mountain bike value guide if yours is not a Giant.
See also: all Giant value guides · value guides by brand · buying a mountain bike · Bicycles & Cycling · condition grades.