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

it threads onto Presta and Schrader valves

but their real power is in the materials

My E-Training - Mobile version*: an exciting and technically sophisticated virtual coach that travels with you whatever your destination

69 Wh Battery Duration 1 h Rechargeable No Dimensions Length: 53mm Weight 11 gms Whats Included 1 set of batteries

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