R&G Aero Crash Protectors feature our stylish, aerodynamic Aero Bobbins and are available in Black or White options. Suitable for the Kawasaki Ninja 250/ 400 '18- & Z400/ Z250 '19- models. R&G Crash Protectors offer core motorcycle protection, keeping the frame, engine, fairing and other critical components off the ground in the event of a crash, drop or slide.R&G Aero Bobbins are a stylish, aerodynamic, teardrop shaped bobbin improving on the original good looks of our highly successful and popular standard round bobbins. Fitted with a removable end cap which hides the bobbins fittings, this sleek design looks superb and is a winner on road and track!R&G Aero Bobbins from R&G Racing – the market leaders in crash protection and the only insurance approved crash protectors on the market. As used by some of the worlds top race teams, what better endorsement do you need! R&G Racing – innovation not imitation!