Early GS works bikes/Herbert Schek
- Thread starter Rupsol
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Rupsol
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Rupsol
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Rupsol
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GP
Now need to find a donor bike - having done some investigation I am on the look out for an R65 or 45 pre-1980. Wheelbase is 1390mm for these bikes as opposed to 1465 for the R80 and R100. This can only help even though a little. The frame will need chopping to move the engine forward to gain some length in the swingarm which will give me the ride height. It will be a bit of a guessing game. I have asked my mate Rod Spry to help. He is an engineer and frame builder. Check his website Rodspry.co.uk. I will try and get the frame right first before worrying about the motor. As an aside how much is a beemer engine rebuild...ball park? Any recommendations?
Now need to find a donor bike - having done some investigation I am on the look out for an R65 or 45 pre-1980. Wheelbase is 1390mm for these bikes as opposed to 1465 for the R80 and R100. This can only help even though a little. The frame will need chopping to move the engine forward to gain some length in the swingarm which will give me the ride height. It will be a bit of a guessing game. I have asked my mate Rod Spry to help. He is an engineer and frame builder. Check his website Rodspry.co.uk. I will try and get the frame right first before worrying about the motor. As an aside how much is a beemer engine rebuild...ball park? Any recommendations?
AliBaba
Registered user
It's a major job to move the engine forward. I think it's easier to shorten the frame in the front (which also give you the opportunity to alter the steering-angle.)
If you check the link in #9 you will see what I mean.
It's impossible to say. If you want a lightweight shortened engine there is a lot of work!
..how long is a piece of string
Richie Moore is someone I have been dealing with recently and will build an engine pretty much to requirements. He is building me an engine at the moment. I have a lot of confidence in him as he is currently developing parts/modification for people who using airhead engines for racing, which means he is actively dynoing different approaches to give quantitive comparisons.
His web site is http://www.moorespeed.co.uk/
But think about it sooner rather than later he is soooo busy he quoted me 10weeks to turn around the engine.
where are all these bikes...?
Rupsol
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GS
i am not an engineer - I push paper for a living
I will leave the decision on how the frame should be modified to Rod. He will find the best way to do it - ignore my guess's!
i am not an engineer - I push paper for a living
I will leave the decision on how the frame should be modified to Rod. He will find the best way to do it - ignore my guess's!Rupsol
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GS
the bike on his wedsite rings a bell - wasnt it featured in TBM in the last couple of years? Very nice and thanks or the lead. The bikes in the pics are in germany.
..how long is a piece of string
Richie Moore is someone I have been dealing with recently and will build an engine pretty much to requirements. He is building me an engine at the moment. I have a lot of confidence in him as he is currently developing parts/modification for people who using airhead engines for racing, which means he is actively dynoing different approaches to give quantitive comparisons.
His web site is http://www.moorespeed.co.uk/
But think about it sooner rather than later he is soooo busy he quoted me 10weeks to turn around the engine.
the bike on his wedsite rings a bell - wasnt it featured in TBM in the last couple of years? Very nice and thanks or the lead. The bikes in the pics are in germany.
Deleted account 111026
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That looks very much like a Rotax magneto unit, I read bout this conversion a long time ago but lost the link.
Rupsol
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GS
the owner tells me the ignition is MZ-B.....no idea what that means
That looks very much like a Rotax magneto unit, I read bout this conversion a long time ago but lost the link.
the owner tells me the ignition is MZ-B.....no idea what that means
Deleted account 111026
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The later 4-stroke MZs, (not the Skorpion or similar which used a Yamaha engine), all used the Rotax 500cc engine unit, I think one of the models was a 500R.
Yes, the moorespeed bike was featured in TBM. Pete, I've been waiting 9 months for some of Richie Moore's time to finish some fabrication and make an exhaust for my Dakar rep.He's been telling me since before xmas " It won't be long now".Rekon you'll be lucky with 10 weeks, but it'll be well worth it.
Taken from Mick13's link in a previous post
Padmei
Registered user
You better not be teasing us now.
Those silver bikes look fantastic. Everytime I say to myself I'll leave my R80GS as a lazy para someone puts up pics of some awesome looking bikes.
Have you got a link to wherever those bikes are from or some video footage?
Those silver bikes look fantastic. Everytime I say to myself I'll leave my R80GS as a lazy para someone puts up pics of some awesome looking bikes.
Have you got a link to wherever those bikes are from or some video footage?
Intersting thread this and whilst looking up Sheck , who is ,I think regarded as the "inventor " of the gs, I came across this site. BMW's weg zur Enduro-teil 2. This tells the story of early off road Beemers and I particularly like the 1964 Sebastian Nachtman bike, Now that looks like the father of the gs to me.
Have a look, you can translate to English, watcha think
wish I knew how to link it or post the pics, matbe someone else can do that.
Have a look, you can translate to English, watcha think
wish I knew how to link it or post the pics, matbe someone else can do that.
Intersting thread this and whilst looking up Sheck , who is ,I think regarded as the "inventor " of the gs, I came across this site. BMW's weg zur Enduro-teil 2. This tells the story of early off road Beemers and I particularly like the 1964 Sebastian Nachtman bike, Now that looks like the father of the gs to me.
Have a look, you can translate to English, watcha think
wish I knew how to link it or post the pics, matbe someone else can do that.
I may know bu**er all about airheads but computer stuff I can do
The site translated via Google Translate:
http://bit.ly/jJ1dLs
Some of the pics from the site:
I think Nachtman although captioned as 'Kurt Tweesmann on 600 BMW':
Nachtman from another site (I think taken in 1962):
The Schek bike from this site (a good read):
http://wiki.classic-motorbikes.net/wikid/Schek_GS_800_BMW_enduro
Rupsol
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GS
thats all i have at the moment -the bikes are home builds by a guy in Germany which he uses for vintage enduro. i am awaiting specs etc
You better not be teasing us now.
Those silver bikes look fantastic. Everytime I say to myself I'll leave my R80GS as a lazy para someone puts up pics of some awesome looking bikes.
Have you got a link to wherever those bikes are from or some video footage?
thats all i have at the moment -the bikes are home builds by a guy in Germany which he uses for vintage enduro. i am awaiting specs etc
Rupsol
Registered user
I may know bu**er all about airheads but computer stuff I can do
The site translated via Google Translate:
http://bit.ly/jJ1dLs
Some of the pics from the site:
I think Nachtman although captioned as 'Kurt Tweesmann on 600 BMW':
Nachtman from another site (I think taken in 1962):
The Schek bike from this site (a good read):
http://wiki.classic-motorbikes.net/wikid/Schek_GS_800_BMW_enduro
Great pics everyone. thanks. This is exactly what i want to create
Rupsol
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the only change i would make would be to have an up and over exhaust. Beautiful bike.
