Chainring bolt Tightness
 

So i cant seem to ever get my chainring bolts "tight" enough, I have to always check them before long rides, and make sure they are tight,

I use steel EAI track chainring bolts. witch are not to cheap, And they always seem to not be tight enough,

I tighten them in a star pattern for even pressure,

Any secrets? tips?

(i've seen some tools homemade at the bike shop, Its like a C clamp- one side is 5mm allen or Torque head for Torque specific bolts and the rear is either 5mm allen head or The slotted tool. http://farm3.staticflickr.com/2427/3...b6cfde89_z.jpg

Where can i get this? I have a constant battle with chain greese, Pain. And Chainring punching.... Its bloody, and i wouldn't mind buying one of these/


After some reaseach its called the var tool 352? Model 352 im assuming. Imma just get my brother to machine me one>.<

But.. 'how much' requires more than a word on a keyboard
a calibrated torque wrench would have a number .. numbers will be more useful.

Ive never had issues, which required daily bolt tigntening,
but I dont ride a Fixie either ,
so how about go to a shop and see someone face to face
and have them demonstrate.

have a team coach at the velodrome?

Chainring bolts really don't require that much torque. You apply a lot to alloy ones (which are perfectly fine) and you'll tear the heads off.

For road doubles I've never had cause other than the odd creak to require to look at the tension. Even then it's just I'm ticking something off a checklist.

For track, where I'm regularly changing, I'm not putting more than about 7-8Nm on the bolts, which for convenience I use a ratchet wrench with a 5mm bit on it.

Ultimately I'd say you have something amiss here. Wrong size bolts or the like.

Locktite?

Blue not red, unless you want to use heat to remove them.


Tom

Is the flanged nut perhaps to long and preventing the bolt from seating snugly? This can be a problem with some road cranks even if you use single (track) fixing bolts.

i tighten by hand and blast them off with an impact gun. are your bolts too long?