“A high-end racing transmission from Italy for smallframe Vespa models. Cristian Mazelli is an avid Vespa enthusiast and has been the most active in the Italian scooter scene for many years. During his time as a runner he was constantly faced with partial material and quality issues that he felt were inadequate for the task at hand. To overcome these bottlenecks, he decided to use his career-based knowledge of industrial research and development to create parts under his own name which he now markets under the “CRIMAZ” logo. The results are well-detailed solutions combined with very high manufacturing quality! His vast experience gained in the world of racing made Cristian understand how important it is to correctly set the driving dynamics of a scooter. This isn’t just important for racers trying to reduce their lap times. Every day, street scooters reveal themselves to be truly unique when the installed transmission adapts to the characteristics of the engine and the required field of use. To completely cover these different needs, CRIMAZ produces three complete close-ratio transmission kits configured differently. They are all delivered including an output shaft, selector spider and spring and are also measured, shimmed and fully assembled. The kit includes: – Four gear gears – Output shaft – Selector spider – Input shaft – Selector spring – Shims and circlips – Clutch lock nut CRIMAZ gearbox components are manufactured to the highest standards and so are their appearance betrays the quality of technical perfection involved in their development to provide optimal function. The four-speed transmissions are manufactured from solid, hardened steel. All components were designed and developed using a dedicated computer program. They are also able to withstand extreme stress and loads, have convincing durability and durability and are an excellent complement to existing drivetrain parts. The transmissions allow for a more clearly defined implementation, perfect for the characteristics of each engine! Available configurations: – Grand Tour: input shaft 21-18-14-10