Bontrager Circuit
  • Color: Black / White / Red
  • Color: Visibility Yellow
Please select options
This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience.


Bontrager's Circuit is a lightweight road helmet that features massive vents for maximum airflow. It features their one-hand-adjustable Headmaster fit system, plus it has an in-mold strap retention system with FlatLock strap adjusters for a superb fit and serious safety. The premium fit pads not only give you a custom feel, they also help keep your head dry on those hot rides.

- Small = 51-57cm
- Medium = 54-60cm
- Large = 58-63cm

Part Numbers

Option UPC MPN Store SKU
Black / White / Red / Small 601479339129 521330 HEL44774327C
Visibility Yellow / Small 601479339099 521321 HEL47403819C


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