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 Post subject: Rear Axle at 6 O'clock or 12 O'clock
PostPosted: Sun Feb 24, 2019 12:46 am 
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Joined: Sat Sep 28, 2013 6:41 pm
Posts: 17
Location: London or Ibiza
model: 750 Paso
year: 1987
I had never considered this before but just read the article in "Cycle" January 1989.

In the article they discuss how changing the rear axle from around the 12 O'clock to around 6 O'clock in order to increase ground clearance made the bike twitchy...

I have looked at lot's of pictures of members bikes and most seem to be at 6 with a fair few at 12. The official workshop manual makes it as clear as mud since one sketch shows it at 6 with the next showing it at 12

I'm about to do some maintenance on the back end and wondered if anyone had tried swapping and which they liked best?

Andy :)


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 Post subject: Re: Rear Axle at 6 O'clock or 12 O'clock
PostPosted: Sun Feb 24, 2019 11:33 am 
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paso grand pooh-bah
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Joined: Thu Nov 03, 2011 10:13 am
Posts: 754
Location: Scotland
model: 907 I.E.
year: 1994
Same idea as the eccentric axle in the singled sided swinging arms. Tensioning the chain alters the ride height and the suspension tie rod should be adjusted to compensate.
You can of course achieve the correct chain tension with the axle in 2 positions - above the axle centre line, or below it. There is no ride height adjustment on the Paso, so get it wrong and you could affect the handling badly.

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 Post subject: Re: Rear Axle at 6 O'clock or 12 O'clock
PostPosted: Thu Jan 21, 2021 1:09 pm 
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Joined: Thu Jan 21, 2021 1:44 am
Posts: 2
Location: West of England, UK
model: 750 Paso
year: 1989
Very soon after getting my bike I realised, like you, that I could achieve the correct chain tension with the eccentric positioned either with the axle at the top, at 12 o'clock, or at the bottom, at 6 o'clock.

With the lack of any guidance from the Owners Manual or Workshop Manuals, I therefore quickly decided that, being rather tall at 6ft-2in, I wanted the maximum ride height possible. I therefore set the axle to the 6 o'clock position. As pointed out in the article you mention (which can be found in the "Manuals and Magazine Articles" section*), this would have sharpened up the steering angle to some extent.

I never experimented with the alternative position, I just stuck with it. I never had any doubts about the handling, it was one of the best handling bikes I had ridden, despite the quirkiness of the 16-inch wheels, and the only real issue was the lack of ground clearance and the bike wanting to stand up in corners if you we were foolish enough to brake mid-corner.

Some what about it guys? What are your thoughts? Anybody got any opinions? Is there a right and wrong answer to this, or just personal preference? If so, what's your preference and why?

Thanks,
Dave.

* https://app.box.com/s/yrb6c0887z/file/36248809


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