I was putting on my chain rings and it was time to put on the bolts,i can’t tighten them properly because the other part is moving too,I read that you need a special tool to hold it in place.How can I improvise?
Buy or make something that looks like this. Two points grab the rear end of the bolt and stop it spinning. You can try knocking them loose with a flat head also.
Hard to tell from the picture but it looks like that crank she used to have a 3rd chainring that you took off. If that’s the case the chainring bolts are too long and you’ll need new ones for a single ring that are shorter. Hope that helps 👍
toxicavenger70 on
I use a needle nose pliers on one side.
Legit_Moose on
Special tool goes on the slotted side.
GunTotinVeganCyclist on
Make sure you have the right size changing bolts. There’s 2 different bolt lengths used commonly. Your lbs would have plenty of these plus the right tools.
GabiBCS on
Thanks everyone! This was a 3x chainring and i removed one,my chain broke and i have to get a new one,and i will order a 1x chainring too.
maniccanuck on
CNW-2 Chainring Nut Wrench
maniccanuck on
once you see the special tool and its shape it would not be hard to make one yourself out of a screw driver
VaguelyIndirect on
Sometimes if you turn the key really fast you can surprise it and the nut will grip without holding it. Not kidding.
Otherwise something that fits in the slots
Leo_3108 on
A flathead usually does the job. Just press down on the screwdriver when tightening and then tighten lol
13 Comments
Buy or make something that looks like this. Two points grab the rear end of the bolt and stop it spinning. You can try knocking them loose with a flat head also.
https://www.amazon.co.uk/Park-Tool-CNW-2-Chainring-Wrench/dp/B000OYFF2K/ref=asc_df_B000OYFF2K/?tag=googshopuk-21&linkCode=df0&hvadid=310485825261&hvpos=&hvnetw=g&hvrand=3114377811275606633&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1006886&hvtargid=pla-563112551006&psc=1&th=1&psc=1
Flat head or butter knife
With the key of Allen
A hex and a spanner
Hard to tell from the picture but it looks like that crank she used to have a 3rd chainring that you took off. If that’s the case the chainring bolts are too long and you’ll need new ones for a single ring that are shorter. Hope that helps 👍
I use a needle nose pliers on one side.
Special tool goes on the slotted side.
Make sure you have the right size changing bolts. There’s 2 different bolt lengths used commonly. Your lbs would have plenty of these plus the right tools.
Thanks everyone! This was a 3x chainring and i removed one,my chain broke and i have to get a new one,and i will order a 1x chainring too.
CNW-2 Chainring Nut Wrench
once you see the special tool and its shape it would not be hard to make one yourself out of a screw driver
Sometimes if you turn the key really fast you can surprise it and the nut will grip without holding it. Not kidding.
Otherwise something that fits in the slots
A flathead usually does the job. Just press down on the screwdriver when tightening and then tighten lol