Serfas HT-500/504 Kilowatt E-Bike Helmet

The Serfas Kilowatt is E-Bike certified and features adjustable venting which be can be opened or closed depending on how much air flow you want, also a built-in rear LED safety light for added visibility with additional reflective design accents, and an easy-to-adjust fit system. – Tested and Certified to NTA 8776 E-Bike Helmet Standards – Adjustable Top Vents (Slide Open/Close) – Built-In Rear Light – Rear-Facing Reflective Accents – Adjustable Straps – Easy-To-Adjust Fit System (Rear Knob) – Weight: 484 Grams – Vent Count: 8 – Sizes: S/M (54-58cm), L/XL (58-61cm)