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Old 05-03-2012, 11:03 AM   #16
Renner
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Quote:
Originally Posted by gvadney View Post
I've been slowly working on a John Penton R27 ISDT replica...


let's hear it.
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Old 05-03-2012, 12:15 PM   #17
Airhead Wrangler
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Not really what you're going for, but definitely noteworthy:

http://www.evum.it/
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Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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Old 05-03-2012, 01:24 PM   #18
pbarmy
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Quote:
Originally Posted by isdt BMW View Post
The clock in this photo is an Ingersol, the face looks like a BMW speedo, the VDO 8 day clock now on the bike was found a couple years later. I found this pocket watch and holder in England. The bell is German, and was found at the Ulm Veterama. The Hagus mirror is also visible on the left crashbar. (my ISDT photos show it there) You guys have more and better photos than I do. I am somewhat computer challanged, but can still find my way in the garage.

Yesterday, a German guy sent me a dozen photos of the Herbert Schek 750cc ISDT bike from about 1973, great detail and I am going to copy some of his ideas.
I took these at Wauseon a couple years back,sweet bike.
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Old 05-03-2012, 01:42 PM   #19
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Quote:
Originally Posted by Renner View Post


let's hear it.
Not much to say yet. It is all in pieces in my shop. JP used an Ariel front end instead of the leading link forks and I have a front end from a BSA Alloy Clipper that looks the same. I walk past it every day, but looking at this '57 made me move it to the front and plan on putting it all back together. I'm not into garage queens, so I'll keep as much of the original patina as possible. I'd like to race it at one of the AHRMA ISDT RR's when done and then cruise the local fire roads here in OR.


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Old 05-03-2012, 04:45 PM   #20
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J Penton ISDT single

I rebuilt motor on the JP bike, it still exists!!! Parts were in Florida, some in the Carolinas, and some still in Amherst Oh. The bike is in Amherst, about 60 percent restored. Hopefully, he will be able to finish it this year.
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Old 05-03-2012, 05:56 PM   #21
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Originally Posted by isdt BMW View Post
I rebuilt motor on the JP bike, it still exists!!! Parts were in Florida, some in the Carolinas, and some still in Amherst Oh. The bike is in Amherst, about 60 percent restored. Hopefully, he will be able to finish it this year.
That would be a great bike to see, pictures would be great. I met JP at Sears Point in 2001, I think, I have never been so intimidated in my life. I'm sure he thought I was a f@&$)(;:/ moron as he signed my book. After reading his book, I started looking for a donor bike. Sorry if I sidetracked your thread.
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Old 05-03-2012, 08:02 PM   #22
Tanami
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Great thread.

Stumbled across this link. Lots of good pics. Have not translated it so not sure what the Laverda link is? anyone know?

http://2-ventiler.de/vbboard/showthr...Laverda-BMW-GS

Stu
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Old 05-04-2012, 03:50 AM   #23
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John Penton

The Penton Owners Group spring meeting was at The National Packard Museum, in Warren Ohio 2 weeks ago. I curate an antique motorcycle exhibit every winter at the museum, John was at the meeting and he is just as sharp and funny as ever. He is the father of the pure enduro bike. My buddy that is restoring the BMW Isdt bike is about 80 miles from me, I'll ask him to take some photos. Ping me offline and I can get detailed photos for you.
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Old 08-06-2012, 04:46 PM   #24
Tanami
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http://speedtracktales.wordpress.com...l-rider-class/
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Old 08-06-2012, 09:57 PM   #25
Kai Ju
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Quote:
Originally Posted by Tanami View Post
Great thread.

Stumbled across this link. Lots of good pics. Have not translated it so not sure what the Laverda link is? anyone know?

http://2-ventiler.de/vbboard/showthr...Laverda-BMW-GS

Stu
Read your post, followed the link and started on the translation.

Cliff's Notes version is that the head of new product development at BMW was good friends with his counterpart at Laverda.
He felt that it would take to long to build the prototype at BMW so he contracted Laverda to build three examples.
(What's quite interesting is that the request for an Enduro came from the American importer who was loosing market share to the invasion of Japanese Scramblers)

The prototypes were built in a short five weeks. The fork came from Marzocchi, the front hub from Grimeca, the rims from Akront, the controls from Magura while the tank and seat came from the shelves of Bernardi Mozzi and Giuliari, who were regular Laverda suppliers. The fenders came from Preston Petty and Sands which were already used on the Laverda-Husqvarna 125 und 250.

Schek was not impressed, especially with the single shock rear suspension and exclaimed that the bikes that he had prepared for the ISDT were far superior. BTW, the Schek prepared bikes originally weighed 135 kilos (297 lbs) which eventually dropped to 125 kilos, ( 275 lbs)

I'll work on the translation as I find time and post it once it's done.

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Old 08-06-2012, 11:01 PM   #26
Tanami
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Wow. Nice work, and thank you. Go Herbert, I sometimes see him in reports in Vintage enduro on a red machine, no doubt a light one, with handling superior to the factory Laverda...ahm BMW!

Quote:
Originally Posted by Kai Ju View Post
Read your post, followed the link and started on the translation.

Cliff's Notes version is that the head of new product development at BMW was good friends with his counterpart at Laverda.
He felt that it would take to long to build the prototype at BMW so he contracted Laverda to build three examples.
(What's quite interesting is that the request for an Enduro came from the American importer who was loosing market share to the invasion of Japanese Scramblers)

The prototypes were built in a short five weeks. The fork came from Marzocchi, the front hub from Grimeca, the rims from Akront, the controls from Magura while the tank and seat came from the shelves of Bernardi Mozzi and Giuliari, who were regular Laverda suppliers. The fenders came from Preston Petty and Sands which were already used on the Laverda-Husqvarna 125 und 250.

Schek was not impressed, especially with the single shock rear suspension and exclaimed that the bikes that he had prepared for the ISDT were far superior. BTW, the Schek prepared bikes weighed originally weighed 135 kilos (297 lbs) which eventually dropped to 125 kilos, ( 275 lbs)

I'll work on the translation as I find time and post it once it's done.
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Old 08-06-2012, 11:50 PM   #27
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Old 08-08-2012, 07:23 PM   #28
isdt BMW OP
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76 R-75 ISDT Project

Found a 76 R-75 parts bike and a 76 R-60 parts bike, using the R-75 as it has a title and larger motor. Modified a /5 toaster tank cut 5" x 1/12" out of the front left bottom to get the high pipe over motor and under the frame tube, cut 1/12" off the entire right side bottom of tank and relocated the petcock to get the pipes up high, made 2 into one y pipe collector, using an oval alloy spark arrester muffler. high pipes made from 2 sets of stock headers to get the bends right. 5 peices on the left, 3 on the right, 3 parts to make y pipe, 3 more to make the offset under the seat, Cannondale footpegs with welded mounts on the frame, relocated regulator mount to where the brake resivoir was under the tank. japanese twin lead coil, Husky 10" travel forks, husky seat, modified subframe for plastic Husky enduro fender and taillight, Husky enduro headlight, husky levers and holders, model 54 bing carbs with Magura twin pull trapdoor throttle. Using R-60 kick start 5 speed trans, and rear drive with lower ratio. lengthened center stand due to longer Works shocks, and Husky 21" front wheel. Husky enduro speedo, fabricated new brake pedal and flipped the rear brake lever up to get the brake rod higher, alloy skid plate. minimal wiring but kept electric starter. cut most of the rear footpeg and muffler mounts off. Husky handlebars. If you see any photos of the Herbert Schek ISDT bikes from 73 to about 77, this is the model I am making, Schek used Maico forks but the Husky ones were only $20. still have to fab some small mounts for the silencer and coil mount, but coming along nicely. Will be ready to paint in a couple of weeks. pretty happy so far.
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Old 08-08-2012, 08:01 PM   #29
Kai Ju
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Didn't happen..........

...............without pictures.

Sounds great but I'd love to see your handywork.
It might even motivate me to translate some more of that post......
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Old 08-09-2012, 03:25 AM   #30
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76 r-75 isdt

How do you post pics? I am not real computer literate. but I do know my way around in the garage. I will be at a vintage meet thru sunday and very busy at work next week, then another vintage meet, Can take pics on the 20th or there abouts. The exhaust turned out pretty sweet. took a whole day to fit it all up then an evening to tig it.
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