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Old 02-09-11, 10:54 AM   #1
broke spoke
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Need advice on freezing bike brakes and internal gears!

My commuter bike has a eight speed internal hub (Shimano). When it gets below about 30 degrees out it freezes up and I am unable to change gears until it warms up later in the day. The brakes don't spring back like they should after being pulled on until it warms up either.
Any suggestions?
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Old 02-09-11, 12:10 PM   #2
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When was the last time you had your bike serviced?
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Old 02-09-11, 02:35 PM   #3
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How often do you do maintenance on your bike? I had brakes seize on me because I didn't take care of them. Now I wipe them down and add lubricant every now and then especially after rain/snow.
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Old 02-09-11, 06:15 PM   #4
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In addition to the maintenance suggestion....do you have fenders?
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Old 02-09-11, 08:30 PM   #5
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Sounds like you need new shifter and brake cables and housing. Water is getting in and freezing.


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Old 02-09-11, 11:52 PM   #6
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Sometimes the nexus and alfine has trouble shifting in the cold, it requires an oil flush. Before that, you should thaw your bicycle out and spray some wd-40 in the cable housing if you suspect water is freezing.
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Old 02-14-11, 10:37 AM   #7
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Thanks for all the advice .... since posting this, one of the springs that pulls the "V" brake pad pad broke. In looking things over I would say everyone who replied to my post hit the nail on the head. My bike is suffering greatly from a nasty combination of high miles and neglect. The brake and shifter cables are cracked and kinked and need to be replaced. Oh yes, the bike does have fenders.
It is one of those things that it is easy to let slide, I just like to get on my pony and ride.
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Old 02-14-11, 11:24 AM   #8
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stainless cables FTW
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Old 02-20-11, 12:18 AM   #9
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Hey here is something else, I have new brakes and cables and housing, but when we had weird weather; fog and excessive moisture then below freezing cold. My brakes started to do the same thing. They would not go back after being pressed, but once it warmed up it was fine. Water in the casing, I loosened the tops and sprayed compressed air, the kind used for computers in the casing and then put the tops back on nice and tight and have not had a problem since.
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Old 02-20-11, 01:16 AM   #10
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I loosened the tops and sprayed compressed air, the kind used for computers in the casing and then put the tops back on nice and tight and have not had a problem since.
Do what now yo? 'TOPS?'
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Old 02-20-11, 02:26 PM   #11
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Do what now yo? 'TOPS?'
The cable's end-caps?

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Old 02-20-11, 03:03 PM   #12
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Quote:
Originally Posted by broke spoke View Post
My commuter bike has a eight speed internal hub (Shimano). When it gets below about 30 degrees out it freezes up and I am unable to change gears until it warms up later in the day. The brakes don't spring back like they should after being pulled on until it warms up either.
Any suggestions?
Cables and housing might sound like a good check you should get the "commuter" bike serviced
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Old 02-20-11, 03:21 PM   #13
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Quote:
Originally Posted by broke spoke View Post
My commuter bike has a eight speed internal hub (Shimano). When it gets below about 30 degrees out it freezes up and I am unable to change gears until it warms up later in the day. The brakes don't spring back like they should after being pulled on until it warms up either.
Any suggestions?
You are probably neglecting your bike and leaving it outside or in the cold. It needs to be warmed, cleaned, and dried every night. There is probably moisture in the gear hub that freezes and never dries out. To avoid this you need to keep your bike maintained and cleaned and warmed and dried inside on a regular basis. It doesn't require all that much to do it.
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Old 02-25-11, 12:07 PM   #14
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I have an 8-speed internal hub too (but I have a folder, so I don't have the freezing problem, as it can come inside with me most of the time). One thing I've heard that can help with frozen components is a little WD-40. I wouldn't put it in the hub, but might help for shifters/brakes.
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Old 02-27-11, 09:44 AM   #15
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My Alfine 8spd suffered from the cold below -10C. The hub would freeze in whichever gear it was left. It wasnt a cable issue, the cassette arm could be rotated but the internals just wouldn't switch.
I think the solution is an oil-dip re-lube of the hub internals.
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