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chainring nuts

Old 09-23-08, 08:11 PM
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ridndirty
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chainring nuts

so i just bought a specialized allez roadbike and took the two chainrings off the cranks to clean them. my question is what tool can i use to hold the nuts ( as they are slotted on either side) as i torque the bolts? if you need to see a pic i can take one to show what nuts i'm talking about!
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Old 09-23-08, 08:28 PM
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Grand Bois
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http://harriscyclery.net/itemdetails.cfm?ID=2378

The other end fits the Shimano dust caps with two holes.
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Old 09-23-08, 09:37 PM
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That tool linked above is made for it, but I haven't gotten the hang of using it and I just use a giant screwdriver.
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Old 09-23-08, 09:47 PM
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ridndirty
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thanks dirtdrop think i'll have to pick one of those up! do most cycling shops carry those?
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Old 09-23-08, 10:23 PM
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Originally Posted by ridndirty View Post
thanks dirtdrop think i'll have to pick one of those up! do most cycling shops carry those?
I have not seen them in shops for sale and I have a lot of shops around me - about ten. They can of crouse order it for you.
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Old 09-24-08, 05:17 AM
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I finally bought one of those tools, as linked by Dirtdrop but before that I used to use a large flathead screwdriver and needlenose pliers to hold the nut down...

Jay
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Old 09-24-08, 07:05 AM
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Sometimes you can get away without the tool if you leave the nut part of the charing bolt ungreased - and also where it contacts inside the chainring.

Friction usually keeps it from turning much.
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Old 09-24-08, 07:50 AM
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Originally Posted by Jay H View Post
I finally bought one of those tools, as linked by Dirtdrop but before that I used to use a large flathead screwdriver and needlenose pliers to hold the nut down...

Jay
I used to take the opposite approach. I used a smallish screwdriver in half of the chainring nut slot. It really isn't very hard to get those to hold still while you tighten the allen bolt.
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Old 09-24-08, 08:36 AM
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If the threads are clean and smooth (no noticable resistance when screwing them in by hand) a little dab of grease will decrease the friction to less than the friction between the chainring and the nut - and you can torque it together as if there was a wrench holding the nut.
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Old 09-24-08, 01:00 PM
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G piny parnas
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Originally Posted by LarDasse74 View Post
If the threads are clean and smooth (no noticable resistance when screwing them in by hand) a little dab of grease will decrease the friction to less than the friction between the chainring and the nut - and you can torque it together as if there was a wrench holding the nut.
totally yes-- and if you cant afford the tool ( which I suggest you do buy) use a small needle nose...
do not use aluminum ring bolts--- steel is real.
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Old 09-24-08, 11:35 PM
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Originally Posted by G piny parnas View Post
do not use aluminum ring bolts
Did that even come up here? Anyways, I agree. I broke a few and it is not pleasant, especially on mtbs.
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