Originally posted by aviaar
What are the best spare parts to have for the XXX-S?
If your track has boards or pipes around it you need to get a stiff and big foam bumper, a lot of 4 deg C hubs, and a pair of rear hubs, reinforce the front bumper with an upper bumper plate (like the G+ has it). Replace the big original wheel nuts with flat ones. You may need a spare CVD dogbone. (I have broken a lot of C hubs before I replaced the wheel nuts.)