45' motor + Big-Twin gearbox

http://www.cyrilhuzeblog.com/2008/10/23 ... per-frame/

Fran-6, think you could fit a Magnum in that frame? Local boy in the neighborhood built himself a Magnum this summer and has fitted it in an aftermarket bigtwin frame with the 4 speed. Could have saved himself a lot of work with one of those frames!
DD

I don't know , Frank : i was just giving the info for somebody , someday , maybe intérressed ...who knows ?

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another picture of frame. regards jib.

http://biltwellok.blogspot.com/2008/10/ ... mount.html

notice the springer !
it's under construction ....just tack-welded .

maybe Jib's pic is a pic FROM Paughco ?

i got a best pic today :

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According to the "Industry rumor mill" that frame was a product of a request from Ron Perewitz, for a project he did. Paugco used their basic "boardtracker big twin" parts and applied to to the 45. Apparently it's available to the public at approximately 998.00 retail. Panic's right...not a real confidence building pic....where's the battery go? no provision for footpegs or controls. Better to start off from scratch.

looks like battery goes behind oil tank.
regards jib

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From everything I've read so far I'd guess that the primary drive is by belt with a custom made pulley on the motor. Not a difficult creation for a high end custom shop with cnc capabilities or a small guy who farms out the job.
See Brews bike at this link:
http://www.amdchampionship.com/content. ... number=070 .

LOOKS LIKE ENGINE CENTER LINE IS TO THE LEFT OF THE FRAME. ASLONG AS THE SIDE STAND IS ON THAT SIDE IT COULD WORK.

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what about using a right side drive box,then it would look like a proper 45 too,and the engine could be central ?regards jib

I've struggled with this problem the last 4 years. I know I can't tell anyone of You guys something new, but may be I can make a little contribution.

After hundrets of sleepless nights I believe, like Panic said, a good solution is to move the engine to the left. I've done it by about 1 3/16" and placed the gear box about 3/8" to the left of the centerline. The front pulley is as close as possible to the engine case and the rear chain is exactly aglined and keeps enough clearance to the tire.
The only tradeoff in this whole agliment is the large offset of the rim (about 7/16" to the left, using a H.-D. dual flange hub) to get the tire (120/70) in the middle of the frame. This could be avoid by a larger engine&tranny offset, another hub and non dished sprockets

The engine doesn't run at the moment, so I can't say if everything really works. I just wanted to say thank you to all of You for the huge knowledge and help in this board which I follow since years. Greetings, Andre

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I would put this whole issue under a big, fat WHY?? A BSA or Triumph gearbox will handle anything a 45 can deliver, a Norton box if you want more strength... anything else is just making work for the sake of it

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