How much is a Giant Fathom worth?

A used Giant Fathom is typically worth £900 (£500 to £1,500). Here is how that breaks down by model year and condition.

Cyclesite fair value range

£900

Range: £500 to £1,500

£500£1,500

New, shops listed this model at about £2,951. Today's fair value holds 30% of that.

From 7 used-market listings quoting an original price.

Trade-in vs private sale

Shop trade-in£585
Private sale£900
You keep extra£315 (54%)
Why shops pay less →

Market trend

Stable

Data points

50

Season

Normal seasonal demand

What a Giant Fathom sells for, by model year

Median asking price for each model year, measured from 50 real UK Giant Fathom listings. These are last-advertised asking prices, not confirmed sale prices.

Model yearTypical asking priceListings
2026£2,3504
2022£1,5506
2021£1,0007

Across these listings, a 2021 model about 43%, a guide to whether an older Giant Fathom is keenly priced.

Source: Cyclesite UK listings data, refreshed continuously. Median of asking prices per model year; years with fewer than four listings are omitted as too thin to publish.

Value by condition

Excellent
£900
£500 to £1,500

Like new, minimal signs of use

Good
£765
£425 to £1,275

Normal wear, fully functional

Fair
£585
£325 to £975

Visible wear, may need minor work

Poor
£360
£200 to £600

Significant wear, needs repairs

Get your exact Giant Fathom valuation

Prices vary by year, specification, and condition. Enter your exact bike details for a personalised valuation.

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Giant Fathom price guide 2026

The used Giant Fathom has a current Cyclesite fair-value range of £500 to £1,500, built from real Cyclesite UK market data. The market trend is currently stable.

Should you sell privately or trade in?

Bike shops typically offer 60-70% of the private sale value for a Giant Fathom. That's approximately £315 less than selling privately on Cyclesite. While a trade-in is faster, selling privately keeps more money in your pocket. Read our full breakdown of why shops pay less and how to maximise your return.

Giant Fathom valuation: common questions

How much is a used Giant Fathom worth?
A used Giant Fathom is typically worth around £900, with most prices between £500 and £1,500. It is built from real Cyclesite UK market data. The market is currently stable.
Is it better to sell a Giant Fathom privately or trade it in?
Bike shops typically offer 60-70% of the private-sale value for a Giant Fathom, around £315 less than selling privately. A trade-in is faster, but selling privately on Cyclesite keeps more of the value in your pocket.
Are these Giant Fathom prices based on real sales?
These figures come from 50 real Giant Fathom listings on the UK used market. They are last-advertised asking prices rather than confirmed sale prices, the most complete and current signal available for a model at this volume.
Where can I buy or sell a used Giant Fathom?
You can browse live Giant Fathom listings and advertise your own on Cyclesite. Every listing with a frame number is checked against a stolen-bike registry and rider-filed theft reports before it goes live, and the listing fee is shown upfront before you publish.
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