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The product of extensive research and development in the pursuit of racing faster, the Ballista is Trek’s fastest and most aerodynamically advanced helmet. With a suite of pro-level features like the Mips Air safety system and the customisable BOA fit system, the Ballista is the go-to helmet for the days when speed is the top priority.
With our Crash Replacement Guarantee, we will provide you with a free replacement helmet if it is involved in a crash within the first year of ownership. Simply contact us or your local retailer with the crashed helmet, original sales receipt, details of the incident and a return address for your replacement.
If for any reason you’re not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.
For your helmet to do its job, it's important that it's sized properly and fits well. Reference our sizing guide at the link below to find your ideal size and see how Bontrager helmets are intended to fit.