gearing extremely low is not always the best way to the fastest et in a given distance, what lower gearing does is take off load from the clutch's from the engine, in simple terms, your working the engine less with a lower gear(higher numericly), this helps aid in getting it moving only. The bigger the top sprocket is the less it bends the chain and reduces rolling friction in the chaincase. Plus using a 1.95 ratio will give you alot better mph in drags, its still plenty low to help with the accelaration. The taller(lower numericly) gear keeps the belt lower in the primary and is easier to keep the clutch's around 1:1 ratio, means the belt has the same radius of bend in the front clutch as the rear clutch, this makes for efficent operation and thus the best power transmitted to the track, where you need it.
I raced a stock 02 srx for one year and won with it 12 times out of 14 races, other 2 were 2nd place finishes. multiple classes, 700 stock triple, 800 stock triple, 21/41 ratio in it. With lower gearing 19/40, and 18/40, it was much slower mph, close to the same et though, I wanted the extra mph by the end, then you dont have someone nudging you out the last 25feet.
the srx likes to be loaded and shifted hard, it likes to tractor its way down the track, load it hard on clutching/gearing and get it to come out of the hole around 8000-8100rpm, then let it climb slightly to 83-8400rpm at the very finish.
