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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)

Let's talk drivetrain

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Old 08-17-11 | 09:21 AM
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Let's talk drivetrain

Currently running:
Dodici Special frame
Miche Primato Advanced Track crankset (46T/165mm)
Shimano UN54 BB 68x110
Resist cog

Ok so here is my issue.

The crankset came with the Miche BB (68x107mm)
The spindle was too short and the crank arm hit the chainstays
Went up to the LBS and picked up the Shimano. Fit better.
Got everything put together and noticed a pretty gnarly hotspot in the chainring.
See video:

Would this problem come from running the Shimano BB, which is JIS, on the Miche cranks which are ISO?
Could the chainring really be that out of round?
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Old 08-17-11 | 10:06 AM
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could help:
see part about centering chainwheels
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Old 08-17-11 | 10:32 AM
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Also, looks to me like your chain has a tight link.
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Old 08-17-11 | 10:57 AM
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I have the same problem with my Omniums. Try using a different chainring and see if that solves the problem
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Old 08-17-11 | 11:17 AM
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Originally Posted by TejanoTrackie
Also, looks to me like your chain has a tight link.
This, pause the video at 12 seconds or so and you can see the link.
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Old 08-17-11 | 11:27 AM
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Your cog is slipping.
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Center your chainring. Also, it's not uncommon for a cog to be slightly out of round.
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Old 08-17-11 | 12:28 PM
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Originally Posted by chi-james
I'll have to try that

Originally Posted by TejanoTrackie
Also, looks to me like your chain has a tight link.
Happens every time I take the chain off
Just had it off to clean all the wax lube (**** sucks) off
Works itself out after a quick ride

Originally Posted by Scrodzilla
Center your chainring. Also, it's not uncommon for a cog to be slightly out of round.
Any cogs you know of that have a good rep of being round?
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Old 08-17-11 | 12:59 PM
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stiff links generally don't work themselves out after a quick ride
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Old 08-17-11 | 01:28 PM
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You also set chain tension at the tight spot so that way your chain doesnt bind as you ride.
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Old 08-17-11 | 01:32 PM
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OP - get one of these, and you'll end stiff chain links forevah

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Old 08-17-11 | 01:41 PM
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Ya I use one of these little ones


Works ok, but always get a stiff link for a little after putting the chain back together.

While we're talking chains, what is everyone using for lube?
I was using this:

Makes such a mess and builds up life a mofo
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Old 08-20-11 | 07:22 PM
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Originally Posted by chrissss
Ya I use one of these little ones


Works ok, but always get a stiff link for a little after putting the chain back together.
That's what the higher step is for, dog. Works out stiff links pretty easily
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Old 08-20-11 | 07:50 PM
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I use this:



Works pretty well. I'd like something that doesn't gum up so much though.
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