CP Industries has quite a few cylinder options for the Banshee. Their most popular line up is the Cub. Available in plenty different stroke and bore combinations. Typically anything 72mm bore will be referred to as "Super". IE, Super Cub or Super Serval...
The cub sold very well, however they have porting more suited toward wide open duning or drag racing. Eventually CP Industries and builders worked together to fill a void in the market for the guys more in to riding trails. They took the cub and made it with a little bit different port timing so the motor would react earlier and make more of a torquey grunt feeling much earlier, and not need to be revved to the moon to be on the pipe. The new cylinder was called the Serval Cub (all their cylinders are named after large cats)