doe's anyone remember these trials bikes, never seen or heard of them?

I have a brother-in-law who used to work for the Neval importers in Yorkshire.I'll see if he remembers anything about them.Looks a bit like the RTX model, I wonder if there's any connection.

Hi

I have owned two Neval 125 trials bikes back in 1979/80 one was blue metal tank. Newer one was red fibreglass tank unit with a similar logo tick to Bultaco. I remeber them being heavy underpowered bikes. I visited their premises which were in Hull?? and was an old aircraft hangar I beleive. About all I can remenber as it was so long ago.

Regards Stuart

Is it a Montesa 250 Rolling Chassis

Vinnie