So, I'm in the wonderful position of having to replace my sprockets and most likely chain as well, on my SV650 naked. My current sprockets are aftermarket...Vortex aluminum, and I believe I'm running a 15(?) - 46 tooth setup. Front is unknown as I can't see it to verify...possible that it's not 15, though, as my gearing feels pretty far from stock....so maybe it's a 14 in there? As my bike is, I find it a lot of fun around town, but it's totally shitty on the highway. At 120km/h I'm at near 7000rpm (which is only like 4000 or so away from redline), and on testing at a closed track I find I top out around 190km/h, all said. As such, I'm happy for the opportunity to change my gearing. I'd be happy to go back to closer to stock, or to stock settings, as I don't care a lot about the slight difference in perceived acceleration. This isn't a track bike.
From what I can find, the stock sprockets are:
15-45 for naked model
15-44 for "S" model.
So, what does all this 520, 525, 530 etc actually refer to? I thought it was something to do with tooth count, but it seems I can purchase any of them with any amount of teeth.
Also, steel vs. aluminum? EMS, who is doing my servicing, is recommending I go back to a steel sprocket. Not sure who even makes those, though? All the kits I see seem to be aluminum. Is OEM the only steel option?
I'm considering something like this, in 15-45:
Thoughts, opinions, etc are welcome