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 Post subject: RockShox Dukes
PostPosted: Wed May 23, 2018 4:32 pm 
retrobike rider
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Location: Worcestershire / West Midlands
I'm mid getting some bits together for my daughter's first 26" wheeler (which she wants to help build :) ), and bought her a set of RockShox Duke forks for £50 - which I don't think was too bad.

So, few questions (sorry!)

1) I've downloaded the service manual from the SRAM site, but has anyone else serviced these before and anything to watch out for? (They seem to scrape a bit when I compress them)

2) She's only 13, so I'm going to swap in a soft spring while I've got them apart - any recommendations for where to look (seen some stuff that looks plausible on amazon - just want to know if anyone knows a good place) - and anyone know if any other models of rockshox use the same springs (not much around for Dukes)

3) How the heck do you tune them in? I'm used to retro 'turn one dial on a fork leg and bugger all happens' type forks. :)


Thanks in advance (and sorry for so many questions!)


Last edited by petitpal on Wed May 23, 2018 6:04 pm, edited 1 time in total.

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 Post subject: Re: RockShox Dukes
PostPosted: Wed May 23, 2018 5:05 pm 
Retro Guru
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Location: BURGOS. Castilla y León. ESPAÑA
2) Spring? Dukes spring is air, so no metal springs needed.


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 Post subject: Re: RockShox Dukes
PostPosted: Wed May 23, 2018 5:12 pm 
retrobike rider
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madjh wrote:
2) Spring? Dukes spring is air, so no metal springs needed.


According to the service manual there's a u-turn spring? (Not taken them apart yet though so not seen for myself!)


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 Post subject: Re:
PostPosted: Wed May 23, 2018 7:56 pm 
Gold Trader
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The U-turn spring in the air forks is the air. The U-turn us a dial that extends/reduces the available travel of the fork.

Tuning will be mostly air pressure, and adjusting the compression and rebound adjusters (if you have both).


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 Post subject: Re: RockShox Dukes
PostPosted: Wed May 23, 2018 9:43 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
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Location: New Forest, UK
IIRC there was a recall BITD on Dukes, make sure yours are the OK ones.


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 Post subject: Re:
PostPosted: Wed May 23, 2018 11:12 pm 
retrobike rider
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Hmmm that's worrying. I'm planning on doing a full strip down and rebuild but any idea what the recall was for?


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 Post subject: Re: Re:
PostPosted: Wed May 23, 2018 11:51 pm 
retrobike rider
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ishaw wrote:
The U-turn spring in the air forks is the air. The U-turn us a dial that extends/reduces the available travel of the fork.

Tuning will be mostly air pressure, and adjusting the compression and rebound adjusters (if you have both).


Cheers :) I suspect I shall find out a lot more as I take them apart!


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 Post subject: Re: Re:
PostPosted: Thu May 24, 2018 8:25 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
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Location: New Forest, UK
petitpal wrote:
Hmmm that's worrying. I'm planning on doing a full strip down and rebuild but any idea what the recall was for?


My mistake, Jett not Duke.
https://thebikerack.com/articles/rocksh ... s-pg60.htm


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 Post subject: Re:
PostPosted: Thu May 24, 2018 6:50 pm 
retrobike rider
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Phew! Had been frantically googling and couldn't find anything :D Thanks anyway though, better safe than sorry :)


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 Post subject: Re:
PostPosted: Fri May 25, 2018 10:04 pm 
retrobike rider
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Finally took them apart today, very glaf I did - haven't been serviced for years and the old lube had turned to sand; I'll put some pics up later if I get chance.

So the right leg seems to have an air damper and the left leg a ruddy big spring. According to the manual on the SRAM site you can get various springs, and think I'll need a soft/yellow. Seem to be a bugger to find though! :)


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