You can't really compare a stock TZ or RS with an Aprilia, not in power, spec or indeed price.
Any of use who trackday a 2t roadbike could have an RS instead, even now, the bills would be a bit higher, TD's might end up being a few fewer but we could. However we could not buy or run an Aprilia.
Back to the OP an RS125 beating any roadbike this side of a Superstock spec 600 is no shock.
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