If you enjoyed reading this article, please click here to view it on Kropotkin's site, MotoGP Matters. ----------------- If anybody tells you it is easy to make modern day Superbikes truly competitive with fixed tech rules that are identical for every bike, smile warmly and move on to a more stimulating, reality-based conversation. Possibly the single most difficult thing to do is make sure the final on-track performance of what started out as commercial products in the market place, all with their own unique marketing USPs and familial DNA helices, is to design the final tech rules. After all, some donor bikes are still relatively cheap and low-tech and some are sold right on the forty grand limit for eligible WorldSBK machines, complete with an electronics suite fit to control the International Space Station. Or even a design concept that is MotoGP-driven, rather than coming with an extended warranty requirement in the original engineering brief. Enter a plethora of performance rules for WorldSBK, which extend to cost-capped parts and approved racing parts, which can include concession parts, as one profound balancing rule element if your bike qualifies. But all of these operate under the catch-all of the ultimate balancing rule - Maximum Rev Limits. There, I capitalised the initial letters, to show how significant this one can be.