Yamaha R6

The first update to the Yamaha R6 came in 2001, giving it a newer fork, fully-adjustable shock and some minor styling changes among other small updates. The first major revamp of the YZF-R6 came in ’03. All-new styling highlighted the looks, while internally it received fuel injection and a slightly longer stroke to make it a full 600cc (was 599cc before). The chassis was further updated with an inverted fork and piggyback rear shock, plus more aggressive steering geometry. As a result the wheelbase was nearly a full inch shorter.

Revised again in ’06, the Yamaha R6 received another totally new look and more over-square bore and stroke, going back to 599cc, for higher engine rpms. Though, the raised rpm claim received much controversy, as Yamaha advertised and printed on the tachometer that the bike could rev to 17,500 rpm-plus. But when owners and magazines got the machine on the dyno it was more in the range of 16,200 rpm max, thus Yamaha issued a letter of apology and offered to buy back any new R6 motorcycles from unhappy customers. Very few were bought back and despite this controversy, the Yamaha R6 was very successful and extremely capable. 2008 saw a host of small changes to give it a bit more mid-range power via higher compression ratio, as well as getting Yamaha’s patented variable intake (YCC-I) and electronically-aided throttle (YCC-T) systems.