here's some ideas, apologies if they have been suggested before. please take it as "constructive criticiscm"
it wouldn't have to just be reviews, maybe there could be more granularity in the main sections too for example:-
sv - general sv topics
general discussion - chat not related to the bike
exhausts
engine
oil and tyres (generally do not mix but it seems OK here
)
equipment (leathers, gloves, helmets)
and others I have probably forgotten (e.g. the law, MOTs etc.)
on the car forum I also read, the mods have the ability to make some threads "sticky" so that they appear at the top of each section all the time. so, for example, if someone posts a guide to suspension modification or whatever and people find it useful, it can be marked as "sticky".
just a couple of ideas anyway.