Mountain Bike Helmet Color:Gradient Purple 10 Damage or deterioration of

10 Damage or deterioration of the surface finish

8 Crank set

Combined with a dual suspension system and 20” × 4” wide tires

The warranty period for a repaired or replaced battery remains unchanged based on the original purchase date

1 Caused by charging by a battery charger not intended or appropriate for use with the battery or the improper use of a battery charger

Mountain Bike Helmet Color:Gradient Purple 10 Damage or deterioration ofApplicable Head Circumference: 58 61cm Material Shell: PE Material Liner: EBS Suitable for most adults' head circumference. Fit for men and women. With an adjustable snug belt to adapt the built in helmet framework for a perfect fit. Use safe, solid, and light materials, which definitely can be very good protection for the head. Solid but light, definitely can be very good protection for the head.