Which parts are needed to change BoXXer’s travel? Changing BoXXer’s travel requires a new air spring shaft, which is available to purchase aftermarket. Related articles What size tokens does the BoXXer use? What are the travel options for BoXXer? How do I change travel in my RockShox fork? Are any technologies in the new BoXXer compatible with previous generations? Will installing Bottomless Tokens change the travel of my RockShox fork?