These aero crash protectors feature our stylish, aerodynamic Aero Bobbins and are available in black. Suitable for the Aprilia V4 Tuono (2011-2020) and Aprilia V4 Tuono 1100 models.This kit requires no trimming of either the left and right-hand side panels, installing into the front engine mount position - allowing for a hassle free installation.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 new 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!