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45' motor + Big-Twin gearbox

Pretty much anything not covered by the topics above. Short lived production bikes or vehicles, Electrical, Tires, Paint, Brakes, etc. Use this for tech questions, and "Shoot the Bull" for general conversation, no tech.
Post Sun Dec 28, 2008 5:52 pm
Pa Site Admin

Posts: 5840
Location: Ohio USA

:mrgreen: :mrgreen: And she had her hair died blonde ? :wink:

Post Sun Dec 28, 2008 8:13 pm

Posts: 5
Location: Dresden, GERMANY
:)
...
It doesn't matter where the parts come from. I simply like the look of the HD BT gearbox.
Of course it has no advantages compared with a "modern" lightweight brit box. But these arn't to my taste.
I've paid an used adjustable transmission plate and the fabrication of the pulley mount to fit the 45 sprocket shaft. The rest I tried to build by myself.
I think this is not much more than you would pay for an english assembly.

Post Mon Dec 29, 2008 1:47 am

Posts: 1654
I'm intrigued with the idea that you can get a Big Twin gearbox and clutch, in any condition, for the price of a British unit. That's certainly not valid in UK

Last BSA gearbox I bought cost me 50GBP on ebay and it cost about the same again in bearings to recondition. I bought a Norton gearbox in very good shape and a clutch to match for around 400 GBP; for an HD BT unit you can multiply that by at least 5, and I don't remember when I last saw saw one offered at all.
Shoot, a man could have a good weekend in Dallas with all that stuff...

Post Sat Jan 03, 2009 1:48 pm

Posts: 767
Location: CA USA

Post Sat Jan 03, 2009 2:06 pm

Posts: 426
Location: Tucson Arizona

Check out this eBay auction.
http://cgi.ebay.com/ebaymotors/45-NEW-4 ... dZViewItem


Funny.......looks like the same Paughco frame and belt drive that V-Twin has on page 758 of the 2009 catalog.......

Post Sat Jan 03, 2009 3:50 pm
Pa Site Admin

Posts: 5840
Location: Ohio USA

Link seems to be dead from here Kurt. Here it is with a bit of pic editing. Pa

WE ARE PLEASED TO INTRODUCE OUR NEW 45 FRAME THAT WILL ACCOMODATE A BIG TWIN 4 SPEED TRANSMISSION. THE NECK IS 30 DEGREE AND WE DO HAVE A BELT DRIVE SYSTEM FOR THE TRANSMISSION AND MOTOR. WE ALSO HAVE A SPECIAL MOTOR SPROCKET THAT HARLEY MANUFACTURED FOR DAYTONA RACERS THAT WAS MADE TO WORK WITH A 4 SPEED TRANSMISSION. WE CAN SUPPLY A 65-69 TRANSMISSION THAT WILL ACCOMODATE AN ELECTRIC START TRANSMISSION. TO DO AN ELECTRIC START TRANSMISSION THE MOTOR SPROCKET WOULD HAVE TO BE ALTERED AND OFF SET 3/8 OF AN INCH. WE ARE PLAYING AROUND WITH THE ELECTRIC START PROJECT AND YOU MAY E-MAIL IF YOU HAVE ANY QUESTIONS. WE ARE PRESENTLY BUIDING A 45 MOTOR WITH A K MODEL TOP END THAT WILL FIT INTO THIS FRAME. THE FRAME IS NOT SET UP FOR THE KICK STAND BRACKET OR FORWARD CONTROL BRACKETS WHICH YOU CAN FAB. THE REAR WHEEL IS SET UP FOR A 73 UP DISC WHEEL. THE NECK IS SET UP FOR A ONE INCH SPRINGER OR GLIDE. THIS AUCTION WILL INCLUDE THE FRAME, AND A COMPLETE REBUILT 1941 45 MOTOR, COMPLETE WITH AUTOMATIC ADVANCE DISTRIBUTOR, CHROME VALVE COVERS. NO WELDS OR REPAIRS TO ENGINE CASES OR HEADS. THIS IS A VERY BEAUTIFUL MOTOR. SERIAL #41WL6319. WORK ON MOTOR DONE AT BILL'S CUSTOM CYCLES. THE FRAME WILL COME WITH A FACTORY MSO.

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Post Sat Jan 03, 2009 4:08 pm
jib

Posts: 575
Location: devon,england
those pics certainly show that offset off well, cut down primary cover in my opinion is going to look hidieously(s"^t) huge and ugly .jib
p.s. someone mention daytona sprockets :mrgreen:
Dude, check out that jibhead, he's crazy. Hasn't been sober for 40 years

Post Sun Jan 04, 2009 10:05 am
panic

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Last edited by panic on Mon Jan 19, 2009 6:36 pm, edited 1 time in total.

Post Sun Jan 04, 2009 10:26 am
Pa Site Admin

Posts: 5840
Location: Ohio USA

Cosmetic wise, I don't care for the mass ratio between the 45 engine and the big twin gear box. It just looks clumpsy to me. Pa

Post Sun Jan 04, 2009 4:52 pm

Posts: 349
Location: Champaign-Urbana, IL
Well, at least with this new frame option for the 45s, there will finally be a use for all those "cheap" Big Twin trannies that have been laying around gathering dust.

Mark

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