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Bontrager Circuit

Bontrager Circuit
  • Color: Charcoal/Black
  • Color: Black / Blue / White
  • Color: Black / White / Red
  • Color: White/Silver
  • Color: Visibility Yellow
  • Color: Red/Black/White
  • Color: Black/Vis Yellow
Color: Charcoal/Black
Size: Select size
Please select options Unavailable


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/Vis Yellow / Large 768682343180 433636 HEL37862682N
Charcoal/Black / Medium 768682342985 433626 HEL41987696K
Visibility Yellow / Medium 601479339556 521322 HEL48342393C
White/Silver / Medium 768682343043 433629 HEL39316339R