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An aerodynamic road bike helmet that is undeniably fast, yet surprisingly light, cool and comfortable.
An aerodynamic road bike helmet that is undeniably fast, yet surprisingly light, cool and comfortable.

Trek Ballista MIPS Road Helmet in White

£159.00 £229.99 30% off
in Customer Rewards when you buy this item today

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

Any item, except food, face masks or e-gift vouchers (full e-gift vouchers T&Cs are listed on the respective product pages) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase. It is recommended that you use a recorded delivery service to ensure your items are received by us. We cannot assume responsibility for items that are lost in the post.

Online or in-store purchases can both be returned to any store free of charge or can be returned by post after completing the online returns form. If you are returning an item due to a fault, we will refund your postage.

If you wish to return your bike to us, please keep the box it arrived in and let us know using the returns form and we will arrange collection.

Customer Returns Form

If you wish to cancel, return or exchange an order please fill in the form below. Returns can be processed quicker if all required information is added.

Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the products have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:

1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £24.99 for collection. If you do not have the original box, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid receipt.

Trek Ballista MIPS Road Helmet in White




An aerodynamic road bike helmet that is undeniably fast, yet surprisingly light, cool and comfortable.

When speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically advanced helmet.

Ballista is light, cool, comfortable and engineered with a fully integrated Mips Air safety system that's designed to help keep you safer.


  • Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds
  • An excellent ventilation system makes this aero helmet surprisingly cool and comfortable
  • The Mips Air system is light, cool and designed to improve comfort and protection
  • The single-lace BOA® fit system is fully adjustable to provide a custom, 360° fit
  • Rubberised sunglasses docking port provides secure and easy-to-use storage
  • Bevelled front edge improves field of view while riding on the hoods and in the drops
  • 5-STAR Virginia Tech safety rating
  • Trek's Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership
Bontrager Helmet Sizing Guide
Sizing Information
Trek Sizing Guide
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  • Can I return the helmet using Trek's unconditional 30 day money back guarantee if I don't get on with it?
    Question asked by Graham Bleach on 03/05/2024 12:33:58
    Yes, this will be covered and this can be actioned in store. Further details can be found here
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