Honda did sell a limited number of RS125's in 07, as well as 06 and is planning on selling another round for 08.

Rumors are all we have at this time, and they are saying that 09 will be the last year Honda produces a 2-stroke RS (125 and 250). I guess we will need to see how things go.

Adjusting the chain will always be better/easier when there is no weight on the rear wheel, and the bext way to do that is to use a rear paddock stand. Since there is no kick stand on these bikes, you are pretty much going to need a rear stand to hold the bike up anyways, so you might as well have one. That and from what I understand, one comes stock with the RS125 (and 250) from HRC, so it should come with a used bike as well (of some flavor, HRC or other).
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Charles Gallant