luhbo
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Posts posted by luhbo
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That's it:
https://en.wikipedia.org/wiki/Legnano_(cycling_team)
https://www.ebay.co.uk/itm/Brand-new-team-Legnano-Cycling-cap-Italian-made-Retro-fixie-/181823074638
https://www.insella.it/news/moto-guzzi-v7-racer-gli-usa-anche-verde-legnano
Don't call it Lime, please. I don't know how the cyclists called it then, but for sure in '72 the Sport's colour got its name after this team - Verde Legnano.
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the LeMans version is the better one. I too have that for my Greeny. You can make it fit.
The difference is that it's fixed additionally under the seat, great for heavy boxes. The Sport version is hanging at the rear pegs only, would make me nervous.
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This Green is printed as yellow in most magazines.
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Great memories, thx. Had somewhat similar in the early 80ies, had the rear main bearing not properly sealed on a repaired 750S engine.
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... Occasionally, when coasting to a stop... the type when you are caught in too high a gear and must downshift 2 or 3 gears quickly without releasing the clutch, it would not "complete" one of the shifts. I can only attribute this to the lighter spring tension. I will know when I upgrade it....
Owning a bike with a rather soft "Japanese Mod" I can watch the same. Quick shifts have become tricky, but it's a different gearbox anyway, so the reason for that can be anything.
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If it's about V11Sport Rivals then he should consider bying one out of the ST series. Or just overlook Ducati at all. They are radical bikes, nothing like a Gran Tourismo after my personal definition.
German Link: https://www.motorradonline.de/gebrauchte-motorraeder/gebrauchtberatung-ducati-st2-3-und-4.347269.html
http://www.motorcyclespecs.co.za/model/ducati/ducati_st2.htm
http://www.motorcyclespecs.co.za/model/ducati/ducati_st3%2004.htm
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You should do it. You don't love your LeMans anyway, so what. Termingnoni are adequate..
You've seen that at least one screw of the fairing is missing already? Missing small things in the engine and you'll have forgotten all your V11 spring problems in less then a blink.
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They come from overseas quite often nowadays, who knows.
I bought a '38 Universal from a chap like him. The entire house was packed with bikes. Bedroom, kitchen, garden. Wife long gone of course. She probably was afraid of ending in an auction like the one above.
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Yes, Wow!
Have you seen the TWN side cart? This is one rare piece. Laverda 200, never heard of it. Will they make the prices public?
Is that all from one person? Did he have a wife, too?
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I actually found a ASTM A228 standard. And a warning not to use Piano Wire of too high tensile strength because of a risk of delamination etc. etc.
Long story short: ask the spring supplier what exact sort/grade of piano wire he used for his springs.
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Define "Off Roading"
You remember the thread where this one brave guy (Englishman?) was tempted to put knobblies onto his V11 for doing a trip through Morocco?
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The question I had is whether the mentioned standards (while I didn't know there are any at all for "Piano Wire") are enough to consistently make reliable springs.
If "Piano Wire or better" is sufficient for that, then it's ok, sure. But for sure as well, a drawing like that would not pass my desktop.
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When Yamaha came out with the 5V heads their 750s were the fastest on the market. So they used this concept further on for marketing reasons.
When the 750 Suzukis came out they were also the fastest 750 bikes. Those were white and blue. So they used this colour concept further on for marketing reasons.
You could make the same story for the Ducati Desmo patents. They seldom were the fastest bikes, instead won 2 or 3 important race events, so they sticked to it for marketing reasons.
Originally the idea was to get rid of valve spring problems with their high reving race engines. An idea that could help to solve our G/B spring problems as well
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What I forgot to mention: an additional winding will make the spring even softer (with thin wires) and/or enlarge the safe travel (for a given diameter).
What I also wanted to mention: Piano or Music Wire stands for nothing usable in this context. It stands more or less for drawn, blank wire only. It's no indication for hardness or anything else, especially not for a certain technical suitability. One piano wire can give you a reliable spring, next time a different piano wire will leed to the known scenario discussed here.
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About 20° I assume. Waiting to hear from you, sounds interesting.
Another thing you could discuss with your spring guy: as such springs see some severe torsional stress it would make probably a huge difference for the expectable lifetime if you remove the U-bend at the outer end, as this U-bend eliminates any torsional freedom at this part of the wire. I guess that without this U the overall stress in the whole wire could be remarkably lower. As your solution in this direction interferes with the other nearby spring you alternatively could try an additional small pin as a boss on the long lever (pin, hole, weld point) or a bent tab out of the lever (unless the whole lever would fail in this case).
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Hey, I know this guy, boring his nose into the pad. Was he opting for the race track because he had no "Führerschein"? At the end of the day a Guzzi would have been an easier option...
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Attention: Spoiler!
Look what the big money will bring:
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Spring Is Sprung - another nice old times read from 2004
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A thicker wire might break easier. I think that the thickness is limited by the travel the legs make, so I'd try a thinner one.
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If you look carefully in the above picture, you can see where the two springs almost meet. This is with the lever in the downshifting position.
But that's not the end position, is it? In the end positions the bump resp. the step would have contact with the small excentric pin, the lock pin as you could call it.
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Looks promising, doesn't it? Maybe two OHCs? In the right direction? The pics will come now, I'm curious
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Youtube - don't go there
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You probably wouldn't make that much overseas business. Here we have that through already. It's been the 'Gerd' Feder - Gerd being the only one in this universe being able to roll proper springs and highly prised for that. Until the first stories of broken Gerd's rolled in at least. Sic transit gloria mundi (or so). Best cure so far seems to be having a spare one under the seat they say.
BTW: the KR I fetched from Italy 2 years ago as replacement for my old Greeny had this "Japanese Mod" installed already. Needles to say that, of course, between a lot of other crappy made things on this bike, the cover was leaking at this point.
Edit: just reread the mentioned thread and it seems as if the 'under seat spare one' charm didn't work for you, Scud
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