Ballista Helmet Product Overview
Ultimate aero road bike helmet with wind-tunnel proven design.
30-Day Unconditional Guarantee
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.
Learn moreCrash Replacement Guarantee
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.
Learn moreHelmet Fit and Sizing
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.
Learn more| Size | S | M | L | Large (58-63cm) | Medium (54-60cm) | Small (51-57cm) |
|---|---|---|---|---|---|---|
| Circumference | 51-57cm | 54-60cm | 58-63cm | 58-63cm | 54-60cm | 51-57cm |
| Fit system | BOA® | BOA® | BOA® | BOA® | BOA® | BOA® |
| Pad material | Agion® antimicrobial pads | Agion® antimicrobial pads | Agion® antimicrobial pads | Agion® antimicrobial pads | Agion® antimicrobial pads | Agion® antimicrobial pads |
| Buckle type | Lightweight buckle | Lightweight buckle | Lightweight buckle | Lightweight buckle | Lightweight buckle | Lightweight buckle |
| Includes | Crash Replacement Guarantee, travel bag | Crash Replacement Guarantee, travel bag | Crash Replacement Guarantee, travel bag | Crash Replacement Guarantee, travel bag | Crash Replacement Guarantee, travel bag | Crash Replacement Guarantee, travel bag |
| Weight | 260g | 285.0g | 320g | 320.0g | 285.0g | 260.0g |