You can't use GP ones - you need the API ones and they are like rocking horse s+%t.
I built my S2 and wanted an uncluttered panel look so had f/b ones made without tubes/handles thinking I would just use GP and got the end and found not, I had to make some fortunately a kind mate lent me a set to make some - if i'd have made 10prs I could have sold them straight away
http://www.lambretta-images.com/archive ... p?pid=3497.
Although looking at it again it appears that the gp ones might bend!!! But memory tells me the couldn't, reason why I made some (the bottom ones)
Still think they look mint without handles - I removed all badges and replaced with vinyl for the smooth look.
Gaz