Patented keyless antitheft system for wheels and saddle.
Easy and quick mounting, no tool required.
The wheel antitheft system substitutes the quick-release of the wheels.
The saddle antitheft system substitutes the quick-release of saddle clamp.
The complete kit includes both the wheels (front and rear) antitheft and the lock saddle antitheft systems
Patent concept: in the horizontal position, the quick release lever is automatically locked; to unlock the bike has to  be lifted-up to the vertical position
A special washer makes the unscrewing impossible even with a tool