Ventura Astro 32L Topbox Kit Kawasaki Z500 Four B1, B2 Chrome RackingVentura Astro 32L Topbox Kit Kawasaki Z500 Four B1, B2 Chrome Racking ASTRO 32 litre Top Box kits are the first hard motorcycle luggage from Ventura. The designers and engineers at Ventura have continued the Ventura phylosophy of the Bike Pack system, for the first time offering a lockable hard luggage system that helps with mass centralisation by carrying the load as close to the centre of the bike as possible. Especially when riding solo as it can