Jan Thiel tells how Jamathi became Piovaticci:

"In 1974 Martin and me had 2 complete bikes with engines machined from solid aluminium.
When we went to Piovaticci in october 1974 we took with us 1 complete Jamathi and a spare
engine. The second rolling chassis was sold and fitted with a Kreidler engine.

After arriving in Pesaro we went testing with the Jamathi repainted in Piovaticci colours
at Misano. Lazzarini did one lap and stopped because he could not ride the bike as it was,
he was seated too far away from the clip-ons. We had to modify the chassis to put him more
forward. When we went back to Misano after this he beat the lap record, a good start!
We then realised that with this more forward position we could also seat him a little bit
lower, so making a really very small bike. So a new chassis was made and raced in 1975.
It was also the first 50 cc with cast magnesium wheels, made by Franco Ringhini.
Later Campagnolo wheels were fitted in 1976.

At the end of 1975 Piovaticci's money was finished and he had to sell his racing department to Bultaco!"
"While working for Piovaticci in Pesaro we made a casting mould, and with this mould
all Piovaticci and Bultaco cilinders were cast".
Jan Thiel 2008

The Piovaticci replica - made for Eugenio Lazzarini by Paolo Marcheselli of LGM fame.