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 are the travel options for BoXXer? What size tokens does the BoXXer use? How do I change travel in my RockShox fork? Can I change my RockShox DebonAir or Solo Air fork to Dual Position Air (or vice versa)? Can I upgrade my current RockShox Charger 3 damper to a Charger 3.1 damper?