Graves Motorsports KTM Sport Bike 10mm Swingarm Spools. The Graves Motorsports swingarm spool kits are available in 10mm and hard anodized in black and finished with laser etching as soon in the video at the bottom of this listing. They are direct fitment motorcycle swingarm spools for bikes that have threaded spool bosses in the 10mm sizing. The bolt in these kits are 10x1.5 please confirm your size and thread pitch.