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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 06-20-12, 08:28 AM   #1
lewhand
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Chub Hub owners....

is anyone else having a problem with keeping chain tension?
on my langster i have to adjust the hub what seems like every ride.

besides running a chain tensioner anyone have any ideas why these hubs don't hold?

had the same problem on my LoPro. and i feel like I'm over tightening the bolts
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Old 06-20-12, 08:31 AM   #2
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Hubs with bolts like that never stay put for me either.
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Old 06-20-12, 09:00 AM   #3
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Do you feel like those hubs really help you accelerate faster? I've read the company's copy, but I'm not sure...
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Old 06-20-12, 01:50 PM   #4
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this is what they say...

FAQ
How tight should I tighten the M10 titanium bolts to keep my wheel in the dropouts?

You need to follow our torque specification of 40Nm or 30ft/lbs. If you still have trouble keeping your wheel in the frame, do not overtighten the bolts. Take your bike into your local shop so they can help diagnose your problem. You should use a torque wrench to ensure your bolts are tightened to spec.
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Old 06-20-12, 06:07 PM   #5
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try a brass washer(softer)instead of the serrated(hard)washers.
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Old 06-20-12, 06:14 PM   #6
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try a brass washer(softer)instead of the serrated(hard)washers.
I think they're supposed to be hard, assuming your tightening them down onto a soft aluminum frame.
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Old 06-20-12, 06:44 PM   #7
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Lo Pro is not aluminuminum.
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Old 06-20-12, 07:48 PM   #8
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Give this a try?
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Old 06-20-12, 08:20 PM   #9
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Quote:
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Lo Pro is not aluminuminum.
Good, but is it aluminum?
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Old 06-20-12, 10:09 PM   #10
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Good grief I strongly dislike bolt mounted hubs. So easy to strip the axle out if you aren't paying attention or in a hurry and get a flat while on the road.
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Old 06-20-12, 10:54 PM   #11
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Does the hub use a knurled nut? I thought if you had a slippy hub, it was due to either the skewers/nuts (lock nut) not biting the dropout enough. If you have a hard stainless dropout, it may make matters worse.

Last edited by Ultraspontane; 06-20-12 at 10:58 PM.
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Old 06-21-12, 05:27 PM   #12
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Langster

Quote:
Originally Posted by Nagrom_ View Post
I think they're supposed to be hard, assuming your tightening them down onto a soft aluminum frame.
re-read OP's post.

http://specialized.com/us/en/bikes/r...langster#specs

zoom in on the drop-outs.


http://bythehive.com/chub-hubs/chub-fixed/
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Old 06-21-12, 05:36 PM   #13
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yeah never had much problem problem with the lopro dropouts
problem only happens on the Langster the replaceable dropout inserts don't seem to hold as well
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Old 06-21-12, 07:06 PM   #14
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Oh yeah. Derp. Stainless dropouts are the worst for getting an axle like that to stay put.
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Old 06-21-12, 10:03 PM   #15
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everything is making sense now.
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