Ventura system works very well and when not being used, the permanent elements are very low profile indeed.
You'll need the 130B kit and reserve an hour to fit everything and check it's all secure. Once done, very secure, high speed touring is yours for the taking.
And when you switch from transit to scratching mode all it takes is 4 very easy to access bolts. It's quicker than any other system I know of, including all those soft options mentioned already. And almost invisible. No straps to rub paint. No risk of wobbles, or exhaust heat melting your Nikes.
Just one heads up - the fitting requires you to use two of the four pillion footrest bolts. If, like me you opted out of pillion provision, you'll need to get a pair of bolts from your friendly dealer - mine threw them in for free at my 600 mile service.
