I cut, jacked out and (1) first butt welded the tubes together, ground the weld down level, then (2) slid a socket over the weld and welded the socket in place as a sort of reinforcing gusset (I was using gas barreling tube) ending up with (3) the welded, extended frame.
Click the pictures below for larger images:
Elevated view of the bike from the right
Click the image to see a larger picture. Shows a view of the assembled bike. The grey cable visible is mains 240v connected to the twin 24v chargers.
GBox
Here you can see the gearbox in situ, showing also how a standard final drive sprocket fitted the clutch/output shaft - thank God for tooling up economy!
GPz 2
Shows tank, panels and g'box in place. Note the uncut frame.
GPz GBox
Same as the above picture, just from a different angle. This picture is an early one, before I swopped over the 550 forks for a set of forks off of a GPz 1100 - this was literally an attempt to redress the balance.. the bike was far too front heavy.
Note to self - next time fit the batteries amidships!
Latest Pictures - half the batteries taken off
Taken in May 2005. The controller I am using was described as a 48v controller. I was mildly surprised to note that I needed to supply the 48v as two short strings of 24v. When the weight overload situation became apparent, I wondered if I could take one pair of batteries off, and connect the remaining 24v to both ends of the controller - without blowing anything up. It was. Quite nimble now, but reduced range of course.
I have connected both of the 24v chargers to my one pair of batteries - it will charge twice as fast now.
Spent an enjoyable afternoon going up and down the access road. Chain thrash annoyingly loud - no I.C.E to drown it out!
Some more views of the bike, these are not clickable
I cut, jacked out and 
Click the image to see a larger picture. Shows a view of the assembled bike. The grey cable visible is mains 240v connected to the twin 24v chargers.
Here you can see the gearbox in situ, showing also how a standard final drive sprocket fitted the clutch/output shaft - thank God for tooling up economy!
Shows tank, panels and g'box in place. Note the uncut frame.
Same as the above picture, just from a different angle. This picture is an early one, before I swopped over the 550 forks for a set of forks off of a GPz 1100 - this was literally an attempt to redress the balance.. the bike was far too front heavy.
Taken in May 2005. The controller I am using was described as a 48v controller. I was mildly surprised to note that I needed to supply the 48v as two short strings of 24v. When the weight overload situation became apparent, I wondered if I could take one pair of batteries off, and connect the remaining 24v to both ends of the controller - without blowing anything up. It was. Quite nimble now, but reduced range of course.
