The BC special is fun to drive, I really liked mine, but its also a handful, and bit manic!. spares are expensive.
The ZX5 does need a couple of things, the front tower mount isnt strong enough, not sure if there is a new updated version or not yet, but you can get alloy ones, needs an alloy front brace also really.. so, adds up the cost a bit.
The XX4 is pretty good, spares are a bit expensive also.. I broke 2 belts in mine before I set the slipper up properly, its been ok for a couple of races now.. but working on it to replace a belt, or indeed do anything is chore.
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