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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 10-22-09, 11:06 AM   #1
mcnuggets
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Freewheel threading?

What is the the threading for most hubs? Specifically the Paul Components High Flange Track Hub. What is left hand threading and right hand threading? I'm a bit confused here. Thanks for the help.
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Old 10-22-09, 01:54 PM   #2
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My guess would be right handed threading. Right handed threading means turning to the right will make the cog screw on and turning to the left will make it come off; Left handed threading means turning to the left will make the cog go tighter and turning to the right will loosen the cog. If you're really interested on where this comes from it's based from the math/physics based right- and left-hand rules
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Old 10-22-09, 02:11 PM   #3
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Most cogs and freewheels will thread on the direction of pedal drive.

Fixed hub lockrings are left threaded for obvious reasons. No lockring is necessary on a freewheel equipped bike since there is no drive force to loosen the freewheel when turning the pedals backwards.
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Old 10-22-09, 02:34 PM   #4
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Should I go for English or metric threaded? I check Paul's website for specifications without much luck. I'm leaning towards metric threads since all of the units on his page were in metric.
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Old 10-22-09, 02:40 PM   #5
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What freewheel are you going to get?
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Old 10-22-09, 02:44 PM   #6
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http://sheldonbrown.com/freewheels.html
probably 1.375" 24tpi
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Old 10-22-09, 03:02 PM   #7
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Originally Posted by mcnuggets View Post
Should I go for English or metric threaded? I check Paul's website for specifications without much luck. I'm leaning towards metric threads since all of the units on his page were in metric.
You want English/ISO threads (1.370"/1.375"). Metric is smaller 30mm, which is only used on some bmx hubs. Almost any freewheel you buy will be English/ISO unless specifically stated otherwise.
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Old 10-22-09, 04:25 PM   #8
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Okay sounds good, thank you.
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