GT Avalanche Sport 27.5 Mountain Bike Red (2017) RGroup_35D09ED66E19235A9AB5A58F573CC7FB0A90C35F This award-winning helmet enhances aerodynamics

This award-winning helmet enhances aerodynamics and reduces drag with specific airflow zones and an optimized trailing edge

and BR-M665

9” (L) TOP TUBE DIAMETER Fits ø38 - ø52 mm WEIGHT 65 g / 2

Integrated Mounting

Its tight-fitting design makes it ideal for racing or touring

GT Avalanche Sport 27.5 Mountain Bike Red (2017) RGroup_35D09ED66E19235A9AB5A58F573CC7FB0A90C35F This award-winning helmet enhances aerodynamicsGT Avalanche Sport is an entry level hardtail mountain bike with 27. 5 inch wheel size. 27. 5 inch wheels have quickly gained popularity amongst as they offer an optimal balance between the reduced rolling resistance that characterises 29ers and the agility and handling of smaller 26 incher wheels. Larger wheels are able to hit obstacles at a lesser angle than smaller wheel sizes, meaning reduced resistance and loss of momentum as the bike hits the