Giro Bell Piston Mountain Bike Helmet (and) -
Bell's Piston mountain bike helmet delivers straightforward protection for off-road adventures, with 15 cooling air vents and easy adjustability.
- ErgoDial fit system offers one-handed adjustment with the press of a button and the slide of a dial
- Fusion In-Mold Microshell construction
- Cam-lock levers on strap for easy adjustment around the ears
- US shipments only
- Snap-in visor