Giant Rivet TT Western Helmet - Black Size:M it threads onto Presta and

it threads onto Presta and Schrader valves

this tool is a useful helper to prevent damages to material and threads

Elastic wrist closure for comfortable fit

you don't want to add weight to make your ride harder than it already is

B&W Bike Box II - The bike box with the award-winning design

Giant Rivet TT Western Helmet - Black Size:M it threads onto Presta andAERO ADVANTAGE. Front to back, every curve and shape is fine tuned through Computational Fluid Dynamics for optimal aerodynamics. Faster on average in various rider positions and yaw angles while deLivering unrivaled fit and comfort. FEATURES Optimized aerodynamics featuring a radius shaped curvature designed through Computational Fluid Dynamics analysis. The unique shape reduces drag across all angles From the crown of the helmet toward the rear, two