One of the enduring questions of our time has to be why Aprilia fitted the cheapest shock that Sachs sell to the Tuono. Yup, on a $21k bike they fit the cheapest shock that they can find whilst finding the budget for Magnesium engine and clutch covers, Brembo Gold brakes, braided lines. But rear suspension that matches the bike and is fitted to the donor model isn't. The OEM shock is adjustable for rebound and preload only. Not a big problem except the ride can manage to be both harsh and wallowy at the same time. The thing most do is to ditch the rear shock and replace with one of these: The bike is so brilliant at everything else and I really thought I could ignore the rear shock. Before I spend everything else, I wanted to get this. It's the official Ohlins for the Aprilia RSV and is perfectly matched to the bike. All it lacks from the mega bucks model is the remote preload adjust, something I can live without. Now to wait for delivery I've never modded bikes before, but adding parts to the Aprilia seems ok. Now I need the CRG levers, Woodcraft sliders with the anodised end caps and some wanky clutch and brake reservoirs to cap it off.