ARC introduce the R8.0 1/8th scale nitro on-road kit. Developed over a period of 18 month and under racing conditions, the newly designed car is based on a slim aluminium chassis and it features bulkheads made from 7075-T6 aluminium for high precision and optimised strength. The transmission parts are manufactured from heat-treated spring steel to minimise wear and maintenance needs while the belt pulleys are designed in a way that they do not need additional adapters to fit on their respective shafts which makes for a much lighter drivetrain. Moulded from high quality composite material the pulleys are also available in a Kevlar variant for improved durability, a lower weight and increased transmission smoothness. The gearbox package is rounded out by module 0.8 spur and pinion gears that allow for high efficiency without sacrificing durability.
The suspension design features an adjustable front track width that can be tuned at the inner mounting point of the lower suspension arms. When racing with control tyres or on a low-grip track, the wide arm position can provide improved steering response. The front upper arms sport an additional hole to mount large plastic screws that can be adjusted in a way that they touch the body under compression which can improve downforce with all suspension arms being made of an extremely hard composite to ensure consistent handling even in long finals. The rear uprights are included with a single upper camber link hole but dual hole uprights are available optionally to fine-tune the roll centre and camber gain. The kit is rounded out by a new design front bumper with adjustable body support for improved high speed downforce, the fuel tank sport a taller filler cap for easier and faster pit stops and optional air discs can be purchased and mounted to the uprights and steering knuckles as another tuning option. The R8.0 will become available very soon.