ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-01-2011, 11:22 AM   #61
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
From Blitzmotorcycles in France

R100/7
mat black painting on the engine
custom steel rear fender
custom aloy front fender
custom seat
genuine Honda tank from the 70s
headlight from a vintage race car (70s)
High temperature mat black slash cut mufflers
Kawasaki Z650 handlebar
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-01-2011, 11:30 AM   #62
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
not a BMW but a Ural this time...

Concept Solo X by James Hammarhead
Hammarhead Industries
Base: 2010-11 Ural sT
745cc
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-01-2011, 11:37 AM   #63
supershaft
because I can
 
Joined: Sep 2010
Location: San Francisco Bay area
Oddometer: 8,275
Quote:
Originally Posted by motu View Post
I have a high front guard now,it was just a matter of getting around to it....no front guard is illegal here.Like a speedway track,gravel roads give their best traction when wet,you need a front guard to ride them wet.

Everyone has their own take on handling,I know everyone loves the airhead,but I find them an understeering bike,nervous when pushed and run wide.The big front tyre means I can push the front much harder,my entry and corner speeds are higher,and I can choose my exit line.I don't have a problem with adapting the bike to my needs,others may find the handling ghastly,but it inspires so much more confidence in me than the stock set up.
Everyone indeed has their own take on handling but there are a lot of good reasons why 99% of all bikes have smaller front tires than the rear and it isn't looks. I set my friends CRF450 up for a local short track/TT. I asked about the track and if there were any tire rules. He said you could run knobbies if you wanted. I left his 21" MX knobby on the front and put a flat track tire on the back. Some of his buddies saw the setup before Friday night and were telling him it wouldn't work. Come Friday night, ALL of those guys were behind him. He said that in just a few weeks depending on the track conditions most everybody was running the same setup. I don't think the knobby has any more grip on hard pack but I do think the profile and less weight of the knobby makes the bike turn and handle a LOT quicker. Later on my friend was short tracking practicing with Ben and Eric Bostrum. He told them the story and they both immediately said that they very often like to run the same setup IF the track will let them.

In my experience, the bigger front tire you put on an airhead, the more they want to tank slap.
supershaft is offline   Reply With Quote
Old 05-01-2011, 11:41 AM   #64
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
From France...by Alatinskywalker
(No more details on this one either...)
Attached Images
 

guzzitaco screwed with this post 05-01-2011 at 12:52 PM
guzzitaco is offline   Reply With Quote
Old 05-01-2011, 12:21 PM   #65
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
another one...
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-01-2011, 12:27 PM   #66
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
BMW ISDT 1956 Team...
Attached Images
 

guzzitaco screwed with this post 05-01-2011 at 12:36 PM
guzzitaco is offline   Reply With Quote
Old 05-01-2011, 12:29 PM   #67
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
another pic from the design study "Streetscrambler"
(based on a R75)
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-01-2011, 03:38 PM   #68
Xcuvator
Justa Venturer
 
Xcuvator's Avatar
 
Joined: Jul 2007
Location: Skolls Or
Oddometer: 1,353
I think if I made up one of those "scramblers", I'd have to put some of those factory style high pipes on it. They may not really be necessary and they will burn the hell out of things and make maintenence a PIA, but a scrambler just otta have some.
__________________
___________________________________________

So much riding-so little time
Xcuvator is offline   Reply With Quote
Old 05-01-2011, 05:43 PM   #69
motu
Loose Pre Unit
 
motu's Avatar
 
Joined: Dec 2001
Location: New Zealand
Oddometer: 4,359
Quote:
Originally Posted by supershaft View Post
I set my friends CRF450 up for a local short track/TT. I asked about the track and if there were any tire rules. He said you could run knobbies if you wanted. I left his 21" MX knobby on the front and put a flat track tire on the back. .
I did the opposite - when we started racing bikes at our local car dirt track with hard pack clay,I took my TS400 down to use.I didn't like the 19in front wheel,and had fitted a TM front end from my dead donor TM400.The 21in knob was crap on the hard pack,and refitted the 19in into the TM forks,and fitted a 3.75 Kenda Speedway tyre,and a 4.00x18 trials tyre to the rear.This was a great set up,and tried it on some gravel roads too,and found it better there than the 21in too.Hence the reason my R65 is set up like that,and confirms my earlier findings.Each to their own.
motu is offline   Reply With Quote
Old 05-02-2011, 08:21 AM   #70
bmweuro
Mad Scientist
 
bmweuro's Avatar
 
Joined: Nov 2003
Location: Chico, California
Oddometer: 3,343
Quote:
Originally Posted by supershaft View Post
Although GS's are already based on a R65, I think an actual R65 is a much better platform to start with. Those narrower cylinders and a bit less weight make all the difference.
Very good point. As well you end up with 18" wheels front and rear, short wheel base and an alloy upper triple clamp.
__________________
BOXER Metal
BMW Biker Scum
BMW Mad Scientist!
VBMWMO #7770, BMW MOA #48694 & Airhead BMW Club #600
bmweuro is offline   Reply With Quote
Old 05-02-2011, 12:06 PM   #71
Euromad
Gnarly Adventurer
 
Joined: Feb 2010
Location: Lower Slobbovia
Oddometer: 165
Most excellent Guzzitaco
I have a 74 R90 I'm modifying and I like a number of the builds- lots of great ideas. Keep them coming if you can!
I'm still researching frame bracing, weight lowering, and a rear fender.
I think the semi raised fender of a scrambler is practical and is distinctive.

As far as the aesthetics go, a motorcycle is a toy we like to play with, therefore form or function is important most to the owner. I hate choppers, but there are some styling cues that an be practical too. Just love the diversity.

Too bad BMW doesn't do some retro scrambler bikes a la Triumph.
The old scramblers were pretty bad dirt bikes. Anything we make now could be a vast improvement just because the suspension and tire choices are so much better.
Euromad is offline   Reply With Quote
Old 05-02-2011, 12:11 PM   #72
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
and another...

This is a R75 that was for sale on ebay in Germany. It got to 6,800 EURO and it didn't make reserve!

It is supposed to be one of the prototype scramblers put together by BMW.
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-02-2011, 12:40 PM   #73
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
From a guy called Luse in Germany...

This was his to do list...

- Gearbox overhaul
- HE discs
- new brake valve
- new Magura throttle
- new clutch system
- new lamp from tinkering with a Dnepr K750
- R69S speedometer
- new handlebar
- a new harness
- engine covers black powder
- horn bracket on the frame
- / 5 tank adapted
- new rear light
- new shock absorbers
- side stand extended
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-02-2011, 12:43 PM   #74
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
some more...

German scramblers were designed to move beer!!!
Attached Images
 
guzzitaco is offline   Reply With Quote
Old 05-02-2011, 01:52 PM   #75
guzzitaco
Gnarly Adventurer
 
Joined: Mar 2011
Location: Hamburg, Germany
Oddometer: 257
Quote:
Originally Posted by Euromad View Post
Most excellent Guzzitaco
I have a 74 R90 I'm modifying and I like a number of the builds- lots of great ideas. Keep them coming if you can!
I'm still researching frame bracing, weight lowering, and a rear fender.
I think the semi raised fender of a scrambler is practical and is distinctive.
.
some pics of a Scrambler based on a R90 from the UK

I hope it brings you ideas on your build !!!
Attached Images
 
guzzitaco is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 01:29 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014