Conversion set for T4'20 to transform it toward T4'21 Graphite variation. Includes all necessary components such as for instance graphite framework, graphite top deck, human body upstops & battery pack adj. width dishes, composite 4 c-hubs for human body upstops, composite bumper top owner brace, composite adj. battery power holders & backstops, springs, ECS drive shafts 52mm, aluminum steering dish 8mm, aluminum gear tensioner, aluminum engine mount, aluminum framework brace, aluminum backside suspension system, holders with centering pin, steel solid drive shafts alongside parts.