Plastic gaurd on the back wheel question.
03-31-10, 05:35 AM
#1
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Plastic gaurd on the back wheel question.
I just got my first road bike canadale caad9-5. There is a clear plastic plate on the back wheel it looks like it protects the gears in the rear. Is it supposed to slide around or even be there? When I ride and look back it always looks lop sided. I can also slide it around. It has little tabs that just slide on the spokes but from what it looks like all the tabs cant be on all the spokes at the same time. Is this how its supposed to be? Sorry such a newb question.
03-31-10, 05:42 AM
#2
Lost
commonly referred to as the "dork disc" - its function is to protect your rear spokes from interference with an improperly adjusted rear deraiuller. no realy use for a properly adjusted and functioning drivetrain.
remove it immediately. pull all of the reflectors off while you're at it.
remove it immediately. pull all of the reflectors off while you're at it.
03-31-10, 05:45 AM
#3
Chases Dogs for Sport
It's to protect the spokes in the event the rear derailleur is badly out of adjustment and shifts into the spokes. It is largely considered to be unnecessary. BFers will ridicule people who keep theirs.
OTOH, if it were made of carbon fiber instead of plastic and stamped with a "Zipp" logo, BFers would call them aero and line up around the block trying to buy one!
(Just kidding about that last part.)
OTOH, if it were made of carbon fiber instead of plastic and stamped with a "Zipp" logo, BFers would call them aero and line up around the block trying to buy one!
(Just kidding about that last part.)
03-31-10, 06:07 AM
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Upgrading my engine
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Yep, get rid of the dork disk. The easiest way to do it is to remove your cassette and it will slide right off.
03-31-10, 06:09 AM
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commonly referred to as the "dork disc" - its function is to protect your rear spokes from interference with an improperly adjusted rear deraiuller. no realy use for a properly adjusted and functioning drivetrain.
remove it immediately. pull all of the reflectors off while you're at it.
remove it immediately. pull all of the reflectors off while you're at it.
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03-31-10, 06:21 AM
#6
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It keeps the chain from jamming between the spokes and cassette should the limits of the RD not be set correctly or you manage to bend a deraileur hanger. A jammed chain may cause a fall.
Removal of it is personal choice but like side reflectors, they are required to be present when delivered new by some states, cities, countries laws.
They are made as a generic item so wont fit all spoke counts and patterns.
If you want to remove it, just cut the tabs and disk with side cutters. Don't cut the spoke!
Removal of it is personal choice but like side reflectors, they are required to be present when delivered new by some states, cities, countries laws.
They are made as a generic item so wont fit all spoke counts and patterns.
If you want to remove it, just cut the tabs and disk with side cutters. Don't cut the spoke!
Last edited by jdon; 03-31-10 at 06:26 AM.
03-31-10, 06:30 AM
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Is it supposed to move around though? When I spin the wheel it looks lop sided cause it slides to one side. I can cut it off with tin snips there is plenty of room. Just want to know if it's suposed to move aroung freely
03-31-10, 06:40 AM
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03-31-10, 07:09 AM
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why remove it. does it bother you?
i wish i still had mine.
i wish i still had mine.
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03-31-10, 07:11 AM
#14
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It's about a 5 min job to do it the right way
03-31-10, 07:19 AM
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commonly referred to as the "dork disc" - its function is to protect your rear spokes from interference with an improperly adjusted rear deraiuller. no realy use for a properly adjusted and functioning drivetrain.
remove it immediately. pull all of the reflectors off while you're at it.
remove it immediately. pull all of the reflectors off while you're at it.
If you don't even know what it is, or what it's for, you want to leave it there, until you've learned a bit about tuning your bike.
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You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
03-31-10, 07:23 AM
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03-31-10, 07:28 AM
#17
fuggitivo solitario
OP, i caught quite a bit of flak for having one of these things, but i didn't pull it off until i was sure i knew how to adjust my RD. mostly, you just want to set your RD low limit screw right, so that when you down shift, your RD doesn't shove the chain into the spokes.
also, you don't need to mess around with the low limit screw that much once it's set. i say check it once every 1000-1500 miles or so.
03-31-10, 07:31 AM
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"You need a dork disc until you stop being a dork"
Hey we've all been dorks so don't sweat it
03-31-10, 07:35 AM
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It's ALL base...
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Just a small technical point: the chain isn't pulled into the spokes if the RD isn't adjusted correctly, the lower cage of the derailleur will be. If/when that happens, the derailleur (including the chain) tends to get wrapped around the axle.
Kinda like certain posters here at different times, as a matter of fact.
I say take this opportunity to learn how to adjust the RD correctly. Park Tool has great instructions on how to do that: https://www.parktool.com/repair/byreg...mageField2.y=2
Kinda like certain posters here at different times, as a matter of fact.
I say take this opportunity to learn how to adjust the RD correctly. Park Tool has great instructions on how to do that: https://www.parktool.com/repair/byreg...mageField2.y=2
03-31-10, 08:01 AM
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It's to protect the spokes in the event the rear derailleur is badly out of adjustment and shifts into the spokes. It is largely considered to be unnecessary. BFers will ridicule people who keep theirs.
OTOH, if it were made of carbon fiber instead of plastic and stamped with a "Zipp" logo, BFers would call them aero and line up around the block trying to buy one!
(Just kidding about that last part.)
OTOH, if it were made of carbon fiber instead of plastic and stamped with a "Zipp" logo, BFers would call them aero and line up around the block trying to buy one!
(Just kidding about that last part.)
03-31-10, 08:47 AM
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I'm sure your LBS has some free ones in a box out back.
Or you can get one from this former "dummy":
https://www.bikeforums.net/showthread...stuff-for-sale
Or you can get one from this former "dummy":
https://www.bikeforums.net/showthread...stuff-for-sale
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03-31-10, 03:46 PM
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What's a bike?
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I left mine alone until it cracked, mainly because it was apparently put in before the wheel was tensioned, so it was physically impossible to remove without simply breaking it off. Once it cracked though, it started to rub every wheel revolution, so I took off the cassette and broke it into pieces until it came off. That being said though, when I built myself a new wheel, I didn't put one on.
03-31-10, 03:46 PM
#25
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+2 (but in the mean time you might want to get started on those reflectors...and the warning stickers while you're at it)
