Kinetics Stretch Disc Brake Fork for Brompton 18/20" - Steel - Raw Lacquer

These frame parts are longer than standard, for larger wheels – so the folded size is a bit larger, and standard accessories like mudguards either won’t fit or have to be modified to fit. The riding position is a bit different with these frames, the bottom bracket (where the pedals attach) is about 3cm higher than standard.

Brompton-compatible forks designed for disc brakes.

These are suitable for fitting standard 100mm-wide front hubs into the Brompton – not just disc brakes but electric motors and standard-width hub dynamos will fit.

They are made from Columbus Zona tubing with investment-cast crowns and fork ends, and come with the correct fittings for the Brompton mudguard and handlebar catch.

IS disc brake mounts - designed for 160mm rotors.

Lifetime warranty.
Instead of the standard 16"(349mm) wheels, these are designed for the following;

18? (355): This size is shared with the Birdy folding bikes, and can use either the fat 2? Big Apple tyres, or knobbly mountain bike tyres.
20? (406): This is the largest wheel size, so rolls very well, and is great for road riding – the fattest tyre that can be fitted is a 1.3? slick. Because of the larger diameter, gearing is increased – this is especially useful if you want higher than standard Rohloff gearing.

- there are some extra requirements if you want to fit mudguards, please email [email protected] to discuss this.

Stretch Forks must be used with a Stretch Triangle to ensure the bike rides and folds correctly.