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PostPosted: Wed Mar 07, 2012 7:17 pm 
Devout Dirtbag

Joined: Thu Nov 19, 2009 12:05 am
Posts: 148
Location: Kent
bikesnoopy wrote:
Interesting position of the bottom AC chain device jockey wheel on the STS . . . :shock:


Just the way it is. Quite noisey in action as after going round the jocket wheel it goes over a plastic sheethed bolt - hence the nosie. It is also sprung loaded so if anything hits it, a log or whatever, it is deflected out of the way and the chainring gets the abuse!?!?

Quirks of old DH bikes and the technology employed...


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PostPosted: Wed Mar 07, 2012 8:21 pm 
Devout Dirtbag
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Joined: Tue Sep 06, 2011 10:42 am
Posts: 139
Location: Ilfracombe, Devon & Wrington, Bristol
When using that type of AC chain device on my DH racebikes, the lower jockey wheel was always further round. . . in about the 7 o clock position. Where it is on your bike, it would've been smashed off on the first run!


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PostPosted: Wed Mar 07, 2012 11:56 pm 
Devout Dirtbag

Joined: Thu Nov 19, 2009 12:05 am
Posts: 148
Location: Kent
bikesnoopy wrote:
When using that type of AC chain device on my DH racebikes, the lower jockey wheel was always further round. . . in about the 7 o clock position. Where it is on your bike, it would've been smashed off on the first run!


Its like that on both my STS Lobos, and its sprung loaded so it swings back around the chainwheel and out of the way. It wouldn't get "smashed off".


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PostPosted: Thu Mar 08, 2012 12:28 am 
Retro Guru
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Joined: Thu Mar 04, 2010 10:26 pm
Posts: 420
Location: Bristol
I love your bikes, what an awesome collection


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PostPosted: Thu Mar 08, 2012 12:32 am 
Devout Dirtbag

Joined: Thu Nov 19, 2009 12:05 am
Posts: 148
Location: Kent
carter711 wrote:
I love your bikes, what an awesome collection


Cheers mate, I'm pretty fond of them. Glad you like 'em.


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PostPosted: Thu Mar 08, 2012 6:09 am 
Dirt Disciple
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Joined: Wed Jul 28, 2010 10:47 pm
Posts: 25
Location: Vancouver
Your garage needs the word "Museum" printed above the door with hours of operation. I don't know anything about the Thermoplastic GTs but those early Super 8s were prone to cracking under the headtube (for that matter I've heard of the same thing happening to the alu Lobos). Be careful!!

FST4RD, pics of your collection? Couldn't agree with you more about the DH4000!


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PostPosted: Thu Mar 08, 2012 2:30 pm 
Retro Guru
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Joined: Fri Sep 21, 2007 8:43 pm
Posts: 1344
Location: Gloucestershire YARP!!
the AC lower device should be about the 7.30 hrs position on the bike, according to the set up sent with my device..

mark

P.s real nice collection


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PostPosted: Thu Mar 08, 2012 2:49 pm 
Devout Dirtbag
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Joined: Tue Sep 06, 2011 10:42 am
Posts: 139
Location: Ilfracombe, Devon & Wrington, Bristol
marky mark wrote:
the AC lower device should be about the 7.30 hrs position on the bike, according to the set up sent with my device..


I rest my case. . .


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PostPosted: Thu Mar 08, 2012 3:18 pm 
Devout Dirtbag

Joined: Thu Nov 19, 2009 12:05 am
Posts: 148
Location: Kent
Just looked into...

It was indeed poorly adjusted, its been like it since I've had it.

There was a little aluminium component with a steel limiting pin (with an allen key to tighten it all up) the pin component needed be rotated back thus limiting how low the bottom roller would travel tensioned by the spring. The allen key must have loosened enough for the spring to rotate it all,

Its in the seven o'clock position...or thereabouts.


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PostPosted: Tue Mar 20, 2012 7:14 pm 
Dirt Disciple

Joined: Wed Mar 07, 2012 5:34 pm
Posts: 28
Location: Chorley
Kool bikes looking for a Lobo but can't find one :(


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