The Yamaha RD350 is one of the bikes that had incredible potential for modification. The two stroke engine could be tweaked to squeeze some impressive performance gains out of it with relatively simple tweaks. With the XSR300 now on the horizon, enthusiasts are wondering if the bike could be customized. While they are definitely more complicated, they also afford more opportunity. Will the XSR300 carry on being a tinkerer's dream, or will it be more of a sealed unit? We’ll discuss the potential for performance mods and aesthetic customization and how this might compare to the legendary modability of the RD350.