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               Momentum Cycles:  The Premier Bike Shop in St. Charles, St. Peters, and O'fallon, MO.                                                 There is no substitute for a great bike fit.                 Huge savings on incredible products.                         

    Locations:  O'fallon  636.240.9232   .   St. Peters  636.397.7433                                         Store Hours:  Mon - Fri: 10 am - 8 pm    .    Sat: 10 am - 5 pm    .    Sun: 12 pm - 4pm

 
 
 
 
 
 
 
> Bicycling > Helmets > Adults > 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

Bontrager Circuit

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 (0 Reviews)
$99.99
Availability: Check Store Availability
 

Product Details

Bontrager Circuit

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 close open

    Option Barcode Manufacturer's Part Number Store SKU
    Charcoal/Black / Small 00768682342961 433625
    Charcoal/Black / Medium 00768682342985 433626 HEL41522666K
    Charcoal/Black / Large 00768682343005 433627 HEL4012035K
    White/Silver / Small 00768682343029 433628 HEL3876367R
    White/Silver / Medium 00768682343043 433629 HEL39799886R
    White/Silver / Large 00768682343067 433630 HEL38928935R
    Red/Black/White / Small 00768682343081 433631 HEL40206983E
    Red/Black/White / Medium 00768682343104 433632 HEL41897574E
    Red/Black/White / Large 00768682343128 433633
    Black/Vis Yellow / Small 00768682343142 433634
    Black/Vis Yellow / Medium 00768682343166 433635
    Black/Vis Yellow / Large 00768682343180 433636
    Black / Blue / White / Small 00768682860809 501435 HEL31263750E
    Black / Blue / White / Medium 00768682860793 501436 HEL32214970E
    Black / Blue / White / Large 00768682860786 501437 HEL31136771E
    Visibility Yellow / Small 00601479339099 521321
    Visibility Yellow / Medium 00601479339556 521322 HEL4899849C
    Visibility Yellow / Large 00601479339563 521323 HEL47488034C
    Black / White / Red / Small 00601479339129 521330
    Black / White / Red / Medium 00601479339617 521331 HEL45234091C
    Black / White / Red / Large 00601479339624 521332 HEL44153295C
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