Boss Vortex Mountain Bike, 18"

A hardtail rather than a full-suspension bike, and that's the point — fewer moving parts, less to maintain, and the money spent on brakes and wheels instead. Zoom disc brakes at both ends, 18 speed Shimano gearing and a matt grey frame that doesn't shout about itself.

Who it fits

18" frame, suitable for an inside leg measurement of 71–87cm (28–34") — a wider range than most, thanks to the 300mm seatpost. Measure from the floor to the crotch with shoes off. The saddle has rail adjusters too, so you can shift it forward or back to fine-tune the reach.

What you're getting

• Frame and fork: hi-tensile steel frame with a Zoom front suspension fork
• Brakes: Zoom mechanical disc brakes front and rear, 160mm wavy rotors, 3-finger alloy levers
• Gears: 18 speed Shimano with Revoshift shifters
• Wheels and tyres: 2.1" knobbly MTB tyres on lightweight double-wall rims
• Fitted as standard: frame-mounted front mudguard, 300mm seatpost with alloy clamp

Why we can price like this

We're an authorised Boss dealer — but we don't run a shop.

No showroom. No shop floor. No stock sitting in a warehouse depreciating. Your bike is picked and dispatched from the manufacturer's own facility and comes straight to your door.

A traditional bike shop has to cover premises, staff and stockholding before it makes a penny, and that has to come out of the ticket price. We don't carry those costs, so we're not asking you to pay for them.

What you don't lose: full manufacturer warranty, because we're an authorised dealer and not a grey importer. A real person to talk sizing through with before you order. And the option of a professional build so it arrives ready to ride.

Delivery and build

Free UK mainland delivery. Bikes ship boxed and part-assembled as standard. Add our professional build and safety check at checkout and a qualified mechanic assembles, adjusts and safety-checks the bike before it leaves — a real workshop job, and entirely optional.

Klarna and Clearpay available on any order value.