tag:blogger.com,1999:blog-5906028895657817353.post7534905568283382280..comments2024-01-27T18:59:25.928+11:00Comments on The Velobanjogent: The BMG Desmodromic valve operating kit for the 86x86 Velocette engines….The Velobanjogenthttp://www.blogger.com/profile/14529221865633433179noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-5906028895657817353.post-69722591604559700202021-02-04T11:37:18.997+11:002021-02-04T11:37:18.997+11:00This kit was advertised in the US back in the earl...This kit was advertised in the US back in the early 60's, but I have never seen any information on one being installed. I had however heard about the high RPM claims and wondered if the bearings (or lubrication) of the ear were up to that level. But the idea is a gem, right up there with the Piper DOHC head for Honda CB750s.....Spirithttps://www.blogger.com/profile/17073178952482991279noreply@blogger.comtag:blogger.com,1999:blog-5906028895657817353.post-42931190897017789412013-05-06T04:36:29.410+10:002013-05-06T04:36:29.410+10:00I have one of these kits. My father-in-law, Brian ...I have one of these kits. My father-in-law, Brian Baxter, bought it back in the 60's and raced it in a Venom for a while until one of the rocker arms snapped. The bike was then stripped down for a rebuild but was never put back together. After a while his stepfather threw the frame and forks in a skip, the rest of it, including the desmo kit, has languished in the garden shed for the last 40-odd years. I've now salvaged what I could and rebuilt a bike to a similar spec to what he had but sadly I think the desmo kit is beyond salvation.<br />Best Regards,<br />MellieMellienoreply@blogger.comtag:blogger.com,1999:blog-5906028895657817353.post-59031240003558871432010-06-26T22:57:32.583+10:002010-06-26T22:57:32.583+10:00Peter, I don't believe anyone is making such a...Peter, I don't believe anyone is making such a kit again.<br />I borrowed the kit in the pictures on the engine before it was installed, years back, plus another for a local chap racing Velos to examine with the idea of making a better copy. He returned them to me with the comment that he felt it difficult to duplicate and unsure if it really gave any appreciable advantage.The Velobanjogenthttps://www.blogger.com/profile/14529221865633433179noreply@blogger.comtag:blogger.com,1999:blog-5906028895657817353.post-72180518940639991062010-06-26T11:44:05.358+10:002010-06-26T11:44:05.358+10:00Very interseting! Many thanks for sharing! I thoro...Very interseting! Many thanks for sharing! I thoroughly enjoyed the blog! Stuff like this must not be lost! Is there anyone reproducing this kit at the moment?<br />Thanks again, Peter.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5906028895657817353.post-63259727904849304882009-11-27T04:26:49.874+11:002009-11-27T04:26:49.874+11:00Thanks for digging up the info and making it avail...Thanks for digging up the info and making it available.<br /><br />I have a problem with the preoccupation with top speed in the report.<br />Desmodromic vave operation, as I understand it, was developed to enable high revs to be used and maintained in an era when valve springs were less developed than today. This Viper was over-geared - why? <br />Standard gearing plus Butler fairing should equal a far higher top speed - 7000rpm = 96.6 mph on standard gearing and the desmo kit should allow a considerable margin for over-revving!<br />The real benefit should be in the lower gears when the revs can be kept closer to the "red line" whilst scratching.<br /><br />I agree that the cost made it a bit of a non-starter though. <br /><br />DerkDerknoreply@blogger.comtag:blogger.com,1999:blog-5906028895657817353.post-87900893003404145192009-03-30T17:24:00.000+11:002009-03-30T17:24:00.000+11:00nice post. ived been searching for articles about ...nice post. ived been searching for articles about valves and actuators and your post really helps. thanks a lot for posting this.diverter valvehttp://www.meaincorporated.comnoreply@blogger.com