disc cogs, seems a ...
 

[Closed] disc cogs, seems a good idea

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from the paul errington snow bike article
[url] http://www.velosolo.co.uk/shopdisc.html [/url]
i fancy a left hand chainline
sorry if this is common knowledge but i've not seen it done this well before


 
Posted : 29/12/2009 9:23 am
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huh thats clever! and you can just swap the cranks round?


 
Posted : 29/12/2009 9:27 am
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yea, why not, can't think of a reason, of course disc brakes are out!


 
Posted : 29/12/2009 9:29 am
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Your pedals will need to be stripped and turned round to run a L/H chain. Then they will fall off during the second ride.


 
Posted : 29/12/2009 9:30 am
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Aren't rear wheels dished specifically to be stronger on the drive side? (Not that I pedal hard enough to worry about that!!)


 
Posted : 29/12/2009 9:40 am
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Thought they were dished to accomodate the cassette only. Strongest wheels are ones that aren't dished at all


 
Posted : 29/12/2009 9:46 am
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Ah - Every day's a schoolday! Apologies for the numpty post, then. In which case, this looks like a great idea!


 
Posted : 29/12/2009 9:47 am
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i did run my driveside on the other side for a bit. I used some locktite on pedals they were fine


 
Posted : 29/12/2009 9:48 am
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how do BMXs get over the pedal issue when running LT drive?


 
Posted : 29/12/2009 9:53 am
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I've got one on my pompino, but Im running it the normal way round. Using a xt mtb disc hub allows a freewheel single cog on the other side for a flipflop hub.
Works really well, no problems with stuck cogs or stripping the hub thread (or pondering the eternal "do i need a lockring" question)
Got mine from velosolo about a year ago, and no sign of any wear yet.


 
Posted : 29/12/2009 9:55 am
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flats would be ok, spds would be the wrong way for your cleats


 
Posted : 29/12/2009 9:59 am
 Sam
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The issue is less with the directio of the pedals than the direction of the threads. The left hand pedal has a left hand thread for a reason, it will unscrew otherwise. The way to do a 'proper' left hand drivetrain is to use tandem pilots cranks. They have the pedals threaded 'normally' but the spider is on the left.

Bolt on disc cogs are a much better idea than left hand drivetrains.


 
Posted : 29/12/2009 10:06 am
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You guys seem to be missing the point. You use a FRONT disc hub, replace the axle (longer) and spacers (wider) and run it as a rear fixie hub with the drive on the same side as usual = no lockring, no dish.


 
Posted : 29/12/2009 10:06 am
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thats the way LFG and VeloSolo do them


 
Posted : 29/12/2009 10:11 am
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back to the snow bike,, it seems he has the same spacing on the front and rear as the wheels are interchangable,, so he has two different ratios avalable

is a fixed wheel the way to go? would be a right pain in the shins pushing a fixed wheel bike in the snow

but then again would most freewheels eventualy freeze up


 
Posted : 29/12/2009 10:14 am
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He doesn't have bolt on sprockets on the snow bike. He's running two rear wheels, both with a freewheel (or cassette wheel with spacers) and a disc. Pretty standard for snow bikes nowadays.


 
Posted : 29/12/2009 10:23 am
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Thanks for that - I'm putting together an electric car for the [url= http://www.greenpower.co.uk/about/history.php ]greenpower[/url] car project for a groups of kids at school. I've been looking to have some sprockets custom made to run attached to the rotor attachments and these guys look like a good placed to size.


 
Posted : 29/12/2009 10:26 am