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Bell Piston Helmet



Cruise around town with friends or explore local parks with the BellA® Adult Piston Bike Helmet. This bicycle helmet features a rounded profile for a casual look that can adapt to a variety of riding styles. Constructed with Fusion™ in-mold microshell, the Piston is a sturdy and solid helmet. The Ergo Dial™ Fit system lets you to make mid-ride adjustments with one hand and the press of a button. Its 15 vents keep you cool.


  • Bike helmet
  • Great for cruising around town or exploring trails
  • Designed with a rounded profile for a casual look
  • Adaptable to a variety of riding styles
  • ErgoDial™ Fit system for single-hand adjustments with the press of a button
  • Snap-In visor minimizes glare
  • Cam-Lock™ levers for easy strap adjustment around your ears
  • Ventilation: 15 vents
  • Construction: Fusion™ in-mold microshell increases sturdiness and strength
  • Bell suggested use: Recreational MTB
  • Universal fit sizes: 21.25" - 24"/54-61 cm

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