I am old enough to have been lapped (in a sprint race) by a couple of kids named Hayden (#69 & #13) in 1994 at Gratten MI (CCS light weight twins) . I think they were 11 and 13 at the time.

4 stroke only GP racing is nothing more then WSB, or even less then. I prefer two separate series that allow the manufacturers to push the limits of technology. It is true that the premier class will never be privateer friendly, but I would have liked to see Moto2 a mix of 250 2t against non spec 600 4t and Moto3 stay with the 125s for cost reasons. It costs twice as much to develop and maintain a racing 4t. Modern 4t are not the forgiving XR 600s.

To counter this, FIM made Moto2 a "spec" series, utilizing a single engine provider. The FIM has chosen "spec racing" to keep the cost down and crush 2t. I would still like to see a study for the carbon footprint (from manufacturing through crushing) of a titanium valved 4t compared to a same CC 2t using modern, biodegradable 2t oil.

I just billed out 2 YZF450 rebuilds and 2 CR 125 rebuilds. The YZF rebuilds were each engine only (engine cases had to be replaced). Both were in excess of 2K and required no transmission gears or clutch parts. One CR was a top end with new Honda cylinder ($675) (serious cold seizure, owner is a squid I just went through this entire bike last year when he purchased it) The other CR is rebuilt crank, new piston-main bearings-gaskets-seals, complete trans cluster (used), new linkage bearings, new wheel bearings for Talon hubs, swing arm assembly (used with good bearings, chain slider and flawless chain adjuster threads ( lucky find on Ebay)), and god knows how many miss matched bolts replaced. The cost of this this CR is under 1800.

Fortunately for the world, no one cares what I think 2 Stroke, using biodegradable oil, RULEZ . Forgive me that I do not see the world the same as you do. This has been a civil exchange of ideas. Thank you, it seems hard to find on the interweb.