I have spares, lots of spares! I part out wrecked Daytonas to fund my track days so I have boxes of spares. I've kept clutches, chains, sprockets, brake pads and rotors, wheels, levers, etc. Also, that's why I want to practice. I know I'm not doing it the best I can. But even then, I know I'm a super Noob at track racing but I've done pretty well on the starts. Last year at Beaver in the mini 20 I went from about 12th on the grid to 2nd into turn 1, passing a lot of the seasoned riders, even Andrew. Of course he passed me back by turn 9.