The better you get the front working the more it will show up the fact that the oem, as in oem gsxr/ zx shocks are not setup for the sv chassis if you just bolt them straight on.
I put an aprilia rsv4 shock in mine and the most notable thing was the ride height was more corrected for the type of 'canyon' riding I prefer.
The stock shock wasn't that bad compared to the stock fork which I found dangerous.
The independent suspension forum has lots of usefull tips for reworking the oem sportsbike Kayaba and Showa stuff.
I was a bit purist in wanting a Nitron/ Penske or Ohlins but finances dictated a secondhand replacement that could be manipulated to do a half reasonable job for now got fitted.
I'd go for it especially if you weren't going to rework the fronts dramatically. An expensive aftermarket shock might be a waste in my opinion, in some cases at least.
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