meaning

This guy clamming his S is for Senna :D https://www.ebay.com/itm/2014-Ducati-Superbike/323838417734?hash=item4b66461b46%3Ag%3APUQAAOSwFDBdCMbl&LH_ItemCondition=3000%7C1000%7C2500

So despite digging my knees in the hole behind the fairing under the tank I still found myself sliding around a bit, I didn't want to put great big Stomp Grips on, so I worked out the contact patch and was going to make up something from their universal pack, then I saw the steetfighter ones...