Regular maintenance is essential for getting the most out of your time on the bike the x tools performance toolkit includes the tools you need for the majority of bike servicing applications such as replacing drivetrain components replacing cables adjusting gears and brakes wheelhub servicing and general fitting adjustments the tools and wrenches feature ergonomic moulded handles for comfort on longer applications and a durable carry case is provided for convenient storage 1x 2 in 1 cran