frame extension

[bigmacstang424]

I was looking at the bike yesterday and wondering if I could maybe extend the frame or lenghthen the swing arm. I was rinding with my buddy who has a chopped out 78 sportster. Its long as hell and makes my bike look real small. I want to sit lower in the bike and put drag bars on it so my arms are around shoulder length. Might have to make up some risers too. I have a shaft drive that I would have to make longer. I was wondering if anyone has done this or seen it done.

[seuadr]

pretty much no way to make a shaft longer.

i believe you could if it were chain, but let me ask you.. have you considered the fact that it will significantly alter your ability to turn and the ride?

[Craiger]

No-can-do on shaft drive. It would be easier and cheaper to just buy another bike that's chain driven.

I think you can do lower and drag bars, but not longer.

[PAULYBOY]

Yeah, lowers easy, hardtail or soft, but longer aint gonna happen, unless its in the front end.

[tone]

Now that attitude stinks guys 3 of you say with authority you cant extend a shaft driven bike well i'm here to tell you thats utter bull

Of course you can, extending the arm is no more difficult than extending one on a chain driven bike & extending the shaft just takes a bit of knowlage & the use of a lathe

Things to watch out for...
Check & re check alignment of the arm during welding

The longer you go the more of an angle your CV joint will run at (max before it touches is around 34 degres on most)

Extending the back will also lower the back if the shock positions dont move to compensate so you may well need to drop the front too

yep ive done it & will probably do it again its not THAT hard it just takes patience & a small amount of skill

[seuadr]

ok, well, let me rephrase.. there isn't a simple and safe method? :P

[Craiger]

Now that attitude stinks...

My apologies. No attitude was intended.

If one is a fabricator, anything is possible.

[tone]

ok, well, let me rephrase.. there isn't a simple and safe method? :P

Thats your opinion my friend but i guess you've never tried it have you ?

I have :-) i find it relitively simple & its certainly safe or i wouldn't do it the last one i did has been used HARD day in day out for the last 7 years with no problems whatsoever

[mortation]

Thats your opinion my friend but i guess you've never tried it have you ?

I have :-) i find it relitively simple & its certainly safe or i wouldn't do it the last one i did has been used HARD day in day out for the last 7 years with no problems whatsoever

Got any pictures?

[buster]

Yeah this post isn't any good without pictures....:-D

[tone]

Sorry if my posts on this irritate guys but i do see a lot of negitive comments on threads posted by people who just think things cant be done without looking into it properly, thats just a mindset that really annoys me as my thoughts are so different

The way i look at things is if a man can make it another man can modify it, after all its only lumps of metal

appologies for being an abrupt englishman but the statements stand it can be done

Btw i'm not a pro fabricator i work in a 16' x8 shed in my back garden with basic tools & am self taught simply because i dont really like stock bikes & am too tight/obstinate to pay for work to be done when i can do it myself

cheers tone

[seuadr]

Sorry if my posts on this irritate guys but i do see a lot of negitive comments on threads posted by people who just think things cant be done without looking into it properly, thats just a mindset that really annoys me as my thoughts are so different

The way i look at things is if a man can make it another man can modify it, after all its only lumps of metal

appologies for being an abrupt englishman but the statements stand it can be done

Btw i'm not a pro fabricator i work in a 16' x8 shed in my back garden with basic tools & am self taught simply because i dont really like stock bikes & am too tight/obstinate to pay for work to be done when i can do it myself

cheers tone

if you did it.. great. i take it back. it can be done. but personally, having worked in a transmission shop for a few years.. i have seen a ton of problems that stemmed from improperly fabbed up driveshafts and other issues related to home jobs. i'm glad you've had no problems.

[tone]

seuadr thanks for that
I have done it a few times both for bikes (chops) & extended & shortened a few shafts for trikes etc but do know what you mean about the quality of some of the home produced work for example bevel boxes used to extend the drive sideways to clear silly back tyres but misaligned to the extent the the bearings last about half an hour

As the the guys who want pics well maybe this thread will remain useless to you as i dont have any, i dont feel any need to prove to you what can be done & rarely take any pics of my work, in fact ive only owned a camera for a year & only have that cos it was given to me in part payment for a job i did for a mate

Nothing to prove here guys just stating the facts that i know to be true

[Craiger]

That's cool, dude. We stand corrected. I'd love to see some pics of one done, but understand your position.

[mortation]

As the the guys who want pics well maybe this thread will remain useless to you as i dont have any, i dont feel any need to prove to you what can be done & rarely take any pics of my work, in fact ive only owned a camera for a year & only have that cos it was given to me in part payment for a job i did for a mate

Nothing to prove here guys just stating the facts that i know to be true

I don't want pics to "prove" anything. I wanted to see how you did it and what it looked so I could decide if I may want to add that to my winter list. I would love to drop and stretch the 850