Go Kart Champion
As per the product description, the preload of the support is adjustable and should be checked periodically. I’ve asked Danny from Darkside Developments what the service interval is on the brass support which makes contact with the input shaft and he said it depends on the application. On race / drag cars, they typically check for any movement of the brass support shaft after every race. On a road car with these power levels, they recommended checking for any movement of the brass support shaft every month or 1000 miles. Darkside Developments checked for movement on their road car after 1,000miles and there was no movement.