lavgert
Hero member
- Location
- Vienna, Austria
Yes, it is the Haider-Prünner 1200 of my friend Horst. It was at Grobnik race track/Croatia. Ciao, GertAre the 1st two pics belonging to a Haider-Prünner ..?
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Yes, it is the Haider-Prünner 1200 of my friend Horst. It was at Grobnik race track/Croatia. Ciao, GertAre the 1st two pics belonging to a Haider-Prünner ..?
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Yeah, a 530, Tom.Wow. Is that on a 530?
Only like damage I've seen, although nowhere near as bad, has been on a 630 set up.
Yup, it'd been on for 20,000 miles.That on the 3C Hamish ? how many miles ? when i changed from the 630 on the Jota there was some decernible rotational play but not much - popped the new sprocket on and off we went
did you change the shaft ?Yup, it'd been on for 20,000 miles.
TBH, despite being driven so far out of alignment, the DID 530 ZVM-X chain was still in good condition.
Modern chains are truly wonderful!
I remember trashing a new chain (Regina/Renolds, prolly) and sprocket set just going to Breganze and back, in '91.
Seemed prudent.did you change the shaft ?
Bit o' Araldite and Bob's ya zio, Maurizio!Went to head out on one of my triples Friday night and wondered what that tick tick tick noise was under the cam cover![]()
As a matter of fact you are absolutely correct, a nice 1979 Jota was the substitute and my lovely wife and I took off down the GOR for a delightful night ride with a balmy 17 deg CBugger....
Lucky you found it Maurice
Hope you just parked it up and grabbed another from the stable?
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Guess it was mandatory given that wear patternSeemed prudent.


Mine was smoothbored to 35mm. I've had it happen twice. Second time on a replacement new slide only 19,000 miles old, in a different carb.Ugly. So do you mean a std triple 32mm bored to 36mm? 32's and 36s share a common body casting, as do 38s and 40s, which means the smaller iterations tend to offer more support to the slide (because there's more metal there to support it around the through bore). My SF1 36 slides had those same wear marks - but worse - but I never had a piece come away like that.