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Discussion in 'Airheads' started by a_k_nicholls, Sep 4, 2004.
They are fun but I'm going to be letting my R50/2 go to make room for a future 1150GSA...
Just gotta drop one of Daisy in here every once in a while.
Sold my /2 a month ago. The remorse has been slowly creeping in since...
It isn't completely finished yet, couple of things here and there, but this is what I have been working on for the last 2 years :
(Click for higher resolution)
1990 BMW New Zealand R80GS Frame, legally registered in Ontario, Canada
985cc rebuilt engine with '77 R100S pistons+barrels (A-bore), 1980 R100CS big valve dual-plugged heads, 1983 R80RT bottom end
Overhauled 40mm Bings, SLS system removed, jetted with160 main jets, 2.66 needle jets (new needles) and 45 idle, 3rd notch (initial setting)
Low mileage stainless steel R100R exhaust system, de-"chromed" and weight relieved, seems to work very well with the rest of the engine
OMEGA Electronic Ignition with two dual tower Dynatek high-energy ignition coils (backup: points-in-beancan ignition with 2.8Ohm HD dual coils)
450W voltage regulator/rectifier combo (backup: BMW stock components)
remanufactured 280W altermator stator and new rotor (Rick Jones) (backup: known good spares)
1982 G/S gearbox, completely rebuilt and modified with a complete set of late design 17.5 Helical gears, mod'ed with a long 5th (HPN)
1987 R80RT monolever 37/11 4-lug final drive
Monolever swingarm with 1 1/4 in extension
EXCEL tube-type rims 21x1.85 and 17x2.50 super-laced to refurished, low mileage 1993 GS front and rear hubs with extrastrong stainless steel spokes/nipples (Woody's Wheelworks)
Stock 1989 GS Marcocchi 40mm forks with RaceTech Gold Valve
CC Products fork brace from SJBMW
New Ohlins Rear Shock, setup for 220lbs and 1 1/4 in swingarm extension
Brake modification to a 4-piston Brembo caliper (1999 BMW K1200S) with 13mm m/c and Spiegler SS brakeline
Large single beam 9" Clearglas Chrome Headlight with Xenon HID conversion (triples light output)
Trailtech Vapor Motorcycle computer with digital voltmeter
BMW Speedster windscreen
Hyperlite Flashing Brake Light
original GS Krauser luggage racks for equal size bags
GS soloseat and rack (or Corbin Gunfighter alternatively)
Where is it going to go? This year it will be gravelracing (sorry: off-roading) in CO, NM, TX and OK and it will go to Alaska within the next 3-4 years.
Click here for "The Making of ...": http://www.stephenbottcher.net/BMW/R100ST_2.htm
Ya gotta sneak up on those old Airheads, they spook easy....Cool pic.
What now feels like an eternity ago but actually less than a year, spending two weeks in Namibia on my airhead
Was a bitch in the sand
But she always got me to the shade
Looking forward to a small mini adventure next month in South-Africa again so can't wait to fire that baby up
Well done Stephen
Well documented. Did you get a final figure on the rebuild?
Only change I would possibly suggest would be fitting a 32:10 final Drive. I think the 37:11 is a little low for the high speed stuff.
I run the 32:10 Swiss R80ST final Drive which is 5% Taller and run the 5% lower 1st to compensate. Gives me 10% taller top gear with the HPN 5th
Again well built
I am actually looking for a 33:11 in the long run, and would only settle for a 32:10 if I have to. Since I am running the 4-lug final drives, I have a couple of more opions. I had a 33:11 in my 1979 R100T (cr 9) and I believe it is a very good match to the high comp engines. Especially since my G/S is more than 50lbs lighter than the T, wet weight.
Final figures for the built? I dare say. I wasn't a rebuilt for starters, it was a built. After selling all the surplus and leftovers, I might be ending up with a $8.5k bill. But who thinks about those countless financial transactions when you sit on the bike, hit the starter and it literally roars to life!
Thats really nice.
In my case it was closer to 6 years, but yea, I know the feeling ...
Where's the pic maverick? It looks like up north heading down towards the Skeleton coast.
Having said that it is Namibia and most of the place is unsealed roads and desert, so it could be almost anywhere ...
Just to make matters worse, the company that I'm working for has just sent one of our guys out to Swakup' for 8 weeks and the lucky git is taking some holiday out there before he comes back to the rain in Perth.
Bugger ... maybe next time,eh?
I reckon for $8,500 you have a bargain!
My bike runs the 70HP High Comp R100RS motor. and cost me a little more than yours , but not much more.
Some guys here in Oz are talking $14-22k for rebuilds/ restorations and I just cant see it . . . unless you are paying a shop to do it.
Really like the rear end conversion. Im not a paralever fan.
It was just north of Puros, the most horrific corrugated road I have ever EVER ridden in my life. The desolation there is amazing though and very beautifull. Maybe I should post the ride report of our trip..........
Now posted so lots of airhead pics to follow in it's natural environment....IDVFISS Ride Report
my '93 gspd showing off it's newly added jesse's!
Was the above pic taken in the Ocala NF??? mainly, Big Scrub???
nope, i took it yesterday at croom motorcycle park in the withlacoochee state forest. it's very similar terrain to the onf area.
THANKS!! here's another pic
My 1985 R 80 G/S