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ISO-Cog
So what's the problem...
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ISO-Cog
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...with saying "Renthal"?
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Nothing, I don't think, except that it won't mean anything to most of the people who'll read it
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A nice technical solution but barmy on an MTB. I was forever banging pedals on a roadie fixie.
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Renthal? Yes it would've meant something to me and, no doubt, a fair few others who owned a Pace bar back in the '90's and people who've followed MX will be more than familiar with who they are
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Yes, thanks for that, clearly "most people" leaves open the possibility that "some people" (ie the rest) will know who Renthal are

i suppose one could use a rear hub, thus having a flip-flop hub, fixed and free...

hmm, maybe chainline issues though.

smart solution though! 

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Maybe there was space to fill?
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And most of us road motorbikers too are well aware of Renthal bars and sprockets.
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I use a Renthal 'crosser bar on my HT. (cut down a bit, admittedly).
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I have a sub 130 (cracked) renthal bar. As for that fixie - I like that a lot! - At sleepless in 2004 Rudi Nadler rode to around 8th solo on his fixed fully rigid Jones - what a nutbar - 24 hours of technical riding with no ability to stop pedaling.. brilliant. 

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Hungry monkey 'now with custom graphics' wrote (see)

i suppose one could use a rear hub, thus having a flip-flop hub, fixed and free...

hmm, maybe chainline issues though.

smart solution though! 


Chainline issues?  Just a little unless you space your cranks out and ride like John Wayne.
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ian leitch 3 wrote (see)

I have a sub 130 (cracked) renthal bar. As for that fixie - I like that a lot! - At sleepless in 2004 Rudi Nadler rode to around 8th solo on his fixed fully rigid Jones - what a nutbar - 24 hours of technical riding with no ability to stop pedaling.. brilliant. 

Can't imagine how anyone could do 'technical riding' without being able to stop pedalling - how would you handle rocky sections, drop-offs, etc without being able to stand on your pedals?

What a silly idea
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Hi everyone, thanks for the comments.

Chainline works really well on an off-road fixed, especially with a cassette hub employed as a flip/flop fixed/free as 'Hungry Monkey' noted - this is how I run my Chameleon as pictured on the site.  Please check the FAQ here for lots more set-up tips but a cog mounted on the disc mount of a rear hub has a chainline of approx 53mm, the chainline on a MTB outer position is normally 52-54mm so with a spacer you can get the fixed side exact to the mm.  Just use CNC spacers on the freehub cassette side to position your SS cog exactly the same. 

Off-road fixed riding is a tiny niche for sure but a growing one.  Having said that most of our cogs and parts go to road riders using 120mm spacing looking for an alternative to the screw on cog system.

If anyone would like any more info please email us.

Brant said - "[So what's the problem...]....with saying "Renthal"?

The cogs and other parts have nothing to do with Renthal. 

They are made by Talon Engineering.

Edited: 13/03/08 12:43
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Gah - Talon - of course... I did a bit of Enduro a few years ago and should have got that.


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#passes Brant a towel to wipe the egg off his face#
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P-NESS do you reckon the mounts designed for a disc will take the punishment of being used as a drive system?

 Also front hub bearings are generally smaller,eg picture hub would use 3/16 bearings. would they be man enough for the job?

 As for fixed off road

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That's the whole point JD, disc mounts are stronger than a fixie thread. Most front hubs like the Deore and 457 do have smaller bearings but the XT is the same as rear I think.

Edit: I say I think because LX and XT hubs used to have oversized versions with 10mm axles and I think the disc front hub has the oversized one too.

Edited: 13/03/08 13:10
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XT front hub bearings are slightly smaller than the rear but on a road bike in our experience (and others who have been using this set-up they are fine).  Off-road any normal rear ISO 6 bolt hub is used.  Again, the FAQ covers many of these queries - (front hub on back, cog on disc mount, chainline, set-up, etc, etc).

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There's egg on my face too - I should have gone out to the shed to check or read the FAQs.
 

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