Graves Motorsports R1 fork spring kit allows for the use of optional rate springs in the front forks, while allowing additional ride height adjustment in the front (through the use of 15mm taller fork caps). The kit comes with 2 Ohlins fork springs (send us your specs in the order notes), or let Graves recommend a custom spring rate for you. Ohlins springs are used since it is easy to access Ohlins springs when you need a different rate. The caps are anodized in a black finish with 5mm incremental lines in the cap for measuring purposes.