How much on the pricing approx...?

If i could have had a rig like that I would have ditched the GEBE and gone with a centre mount with your modification... running that through a 7-speed shimano would be fantastic..

Not to mention that shimano do an automatic transmission computerised shifter with manual paddle gear overdrive... 7 speed automatic 70cc with a nice tuned pipe would be something to see...

Mind you the 32cc GEBE can be fun - specially overtaking 540i BMWs - the look on the passengers face was camera-worthy lmao..

Welcome to the forum

Jemma xx