The Superstock classes provide some of the biggest grids and most competitive racing of all the Bennetts BSB support classes. Being the class with the closest connection to showroom products the regulations have to be carefully evolved to reflect the changing market conditions.

The 2021 Pirelli National Superstock Championships will have a subtle change this season by dropping their capacity tags. The Pirelli National Junior Superstock Championship is by definition the entry level class with rider eligibility confined to 16-25 years old and machine capacity capped at 636cc to cater for the Kawasaki ZX6 model.

The senior class is now simply titled the Pirelli National Superstock Championship and includes a promoters option to propose (to the MCRCB) acceptance of motorcycle models above 1000cc. This is a result of changing global conditions affecting motorcycle model production and new Euro 5 regulations, which has seen manufacturers stretch capacities to boost performance and reduce reliance on high revs.

Of course balancing the various motorcycle models is key to fair competition, especially in the Superstock class where results define brand reputation and marketing. Any motorcycle above the current 1000cc capacity limit will be mandated to run a MoTeC series promoter specified ECU at a price within the class ECU price cap with rider aids disabled (as in BSB), and other invasive mechanical interventions, along with a rev limit and additional weight.

Bennetts British Superbike Championship Series Director Stuart Higgs explained: “We have to reflect the market and create opportunities for manufactures to participate. With Euro 5 and the general pattern and frequency of sports bikes entering the market changing, we have to think differently. Now we have technical solutions that can balance different capacity limits and architecture and we can apply this to several classes (Supersport, Junior Supersport and Superstock) to create a greater depth of competition and platform for teams and manufacturers.”