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Old 04-07-2011, 12:41 AM   #69
tenorjazz OP
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Joined: Mar 2007
Location: Woodinville, WA
Oddometer: 263
Quote:
Originally Posted by PSchrauber View Post
Mmmh, I don't think so, you dont have the chain thigtener installed, a Bultaco should have a Chain thigtener,
there is one for the primary drive and there should be, - as I know - one for secundary chain drive too,
without tensioner the slack as you mentiones would be to big. (There shoul otherwise be no way to get
the chain proper installed, the distance between rocker axis and front sprocket axis is too long) *(1

One other thing to not, You should to warp around a bit of a rubber tube
to the rocker axis, that's what I did to my model 221 Sherpa. There You
can also see the chain thigtener

Like here:


*(1 Is the security plate for the front sprocket nut already bend down, I couldn't see this on the picture???
The only security washers I have are all messed up but I just got a new one and haven't installed it yet.

I like the idea of a chain tensioner, but I'm guessing they weren't used till 1967 or newer...

Here's some shot's of new bikes with the tensioner:







These bikes are more my vintage and I don't think they have chain tensioners on them:







I might still go with a chain tensioner rather than modify the frame, any opinions??
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