"LEONARDO" titanium 1/2-internal-gears / 1/2-fixed-gears bike

Sale price Price £1,825.00 Regular price Unit price  per 



gravel, city and even velodrome, one version for everyone!

carefully built to order, in London, from pristine new components

large diameter tubes titanium frame and fork

reversible positive/negative offset seat-post

available with any handlebars shape

easily removable hybrid mechanical/hydraulic brakes

aluminium handlebars, stem, rims and crank-set

GATES carbon belt-drive or standard metal chain

bespoke gearing ratios

easy to maintain or upgrade, external cable routings and no proprietary standards

brown microsuede or black sport saddle and grips

aluminium pedals with removable stainless steel toe clips

eyelets for mudguards and racks

track dropouts

wide rims allow for a vast selection of tyre sizes, standard and gravel

1 or 2 gears with SCHLUMPF-DRIVE front gearbox and easy-shift crank-arm plates

rear wheel can be flipped and cog can be installed in place of the disc brake rotor, resulting in 1 or 2 fixed gears!

*bespoke ZEHUS HORIZON (BIKE+) wheel upgrade available post-purchase

*step-through versions available as pre-orders

*also available as a standalone frame-set


the super-flat planetary gearbox (only 10mm wide), blends in alongside the chainring in a seamless fashion

change gear

with a simple kick of the heel on the side buttons, while standing still or under heavy load

low maintenance

no cables, levers or derailleurs

high efficiency, high quality materials, ensure great longevity

symmetrical clutch allows full torque in both pedalling directions, making it compatible with coaster brakes and fixed-gear bikes without a rear brake

the optional EASY-SHIFT plates, available on request, cover the whole crank arms and allow for shifting by pushing on a larger area, best for clip-in pedals

SPEED-DRIVE ratios: direct-drive / 165%

MOUNTAIN-DRIVE ratios: 40% / direct-drive (for even the steepest climbs)

videos on our ‘TECHNOLOGIES’ page

pics provided for final approval before shipping

get in touch for more details or to discuss specific requirements

"nfixedlondon" on X/facebook/instagram/threads


53cm (centre-top) seat-tube

53cm (centre-centre) effective top-tube

11.5cm head-tube

74° seat-tube angle

~53mm B.B. drop


56cm (centre-top) seat-tube

56cm (centre-centre) effective top-tube

11.5cm head-tube

74° seat-tube angle

~53mm B.B. drop