What size bike do I need for my height?

Height drives frame size: under 157cm = XS, 157-168cm = S, 168-178cm = M, 178-188cm = L, 188cm+ = XL. Mountain bikes use inch-based sizing (e.g. 17-18" for medium), road and gravel bikes use cm (e.g. 55-57cm for medium). The advisor picks the right format for your chosen bike type.

How much should I spend on a used bike?

For a daily commuter, £400-£900 used buys a reliable hybrid or entry road bike. Serious road or gravel riding starts around £1,200 used for Shimano 105 or equivalent. Quality hardtail MTBs from £800; full-suspension from £1,800. E-bikes cost 2-3× the equivalent non-electric. The advisor shows the median price on Cyclesite for your match as you move the budget slider.

What groupset should I look for on a used bike?

Road: Shimano Tiagra is the floor. Avoid Claris and Sora for anything over £900. Shimano 105 or Ultegra is the sweet spot used. Mountain: Shimano Deore or SLX is the floor for hardtails; SRAM GX or Shimano XT for full-suspension. The advisor flags the groupset floor for your match so you do not buy the wrong £1,200 bike.

Is it worth buying used over new?

Typically yes. Most bikes lose 35-55% of their value in the first three years, so a 2-3 year old used bike from a reputable seller is often the best value. Cyclesite checks every supplied frame number against UK stolen-bike databases, and the advisor shows how much you save versus typical new price for your match.

Do I need an electric bike?

E-bikes make sense if you commute 5+ miles with hills or headwind, carry kids or cargo, or are returning from a long break in cycling. They cost 2-3× the equivalent non-electric and weigh 5-10kg more. The advisor only suggests electric where a meaningful variant exists for your scenario.

How long does it take to use the Bike Advisor?

Around 90 seconds. Four core questions plus one or two follow-ups, no signup and no email required. Results include a shareable URL so you can save or send the recommendation.

Bike Advisor

Which bike should I buy?

Shortlist the right bike by category, frame size and groupset, matched to live UK listings with real depreciation, resale velocity and 3-year ownership cost data.

90 seconds · No signup · Free

How it works

You tell us how you ride
Whether you commute on tarmac, ride singletrack at weekends or need something for the school run, four quick questions cover it.
We match you to a bike
We pick the right category, estimate your frame size and flag a groupset floor, so you don't buy the wrong £1,200 bike.
You get a shortlist
Live UK listings in your size and budget, with real UK market-price data, resale velocity and 3-year ownership cost. No signup.

How it works

You tell us how you ride

We match you to a bike

You get a shortlist

Find the right type of bike

Bike size calculator

Browse all bikes

Free bike valuation

How it works

You tell us how you ride

We match you to a bike

You get a shortlist