best mountain bike helmets 2017 uk 7iDP X2 Helmet – Lightweight MTB Helmet for Men & Women, Trail & Enduro, Adjustable Fit, Breathable with Extended Rear Coverage. (Blue/White, S/M) Sports & Outdoors Size:15mm (1/2") | 1/64 oz | #16 Hook Cute Hello Kitty's Back saldi_fino_50

best mountain bike helmets 2017 uk 7iDP X2 Helmet – Lightweight MTB Helmet for Men & Women, Trail & Enduro, Adjustable Fit, Breathable with Extended Rear Coverage. (Blue/White, S/M) Sports & Outdoors Size:15mm (1/2") | 1/64 oz | #16 Hook Cute Hello Kitty's Back saldi_fino_50

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below are the most important ones, which we considered while we were researching this list

saldi_fino_50

Size:15mm (1/2") | 1/64 oz | #16 Hook

With an extension to protect the teeth and jaw, while still ensuring adequate comfort and ventilation, these helmets will guarantee you against the heaviest of knocks