Casco O'Neal Challenger Exo Color:Black-Gray-White This design reduces vibrations normally

This design reduces vibrations normally caused by the inner and outer links passing over the chainring and provides better chain engagement

The lumbar mesh panel with raw cut insert ensures the necessary back stability

you should expect much more from a helmet than just “standard” features like superior aerodynamics and low weight

EXTENDED BATTERY LIFE

Casco O'Neal Challenger Exo Color:Black-Gray-White This design reduces vibrations normallyHelmet with 2 outer shells and 2 EPS for increased safety and a perfect fit The shell is made of high quality ABS Multiple air vents for optimal ventilation and cooling Microlock closure Padded and comfortable liner, removable, sweat absorbent, and washable Bluetooth ready with cavities for internal speakers and rubber ring on the back of the helmet (Bluetooth unit not included) Pinlock ready for optional use Clear visor plus integrated secondary sun