cheers. It was already greased.
But you didn’t tighten the cog.
I did but i didn’t have a chain whip so did it with a mate standing on the cranks and holding the wheel, then tightened the lockring with a single tooth c tool.
Is it common for people to thread their hubs if it’s not tightened correctly? What should i have done?
It’s not uncommon. You should have properly tightened the cog and then the lockring. [u]Rotafix[/u] if you don’t have a chainwhip.
Use it as an excuse to get a better rear wheel.
You can’t tighten a cog that way.
Either rotafix it (google) or use a chainwhip.
If the sprocket is gold, it’s aluminium, I would bin it straight away and replace it with a Roselli (cheaper) or Dura Ace / Phil Wood / Soma / Surly.
It’s tempting but i was hoping the rear wheel would last longer than 2km.
Great Link San Esteban.
my cog is very tightly done up on my old wheels, and last time I tried to get it taken off the guy at Bike Bar Bondi bent his chainwhip and said he couldn’t do it. Can you rotafix in reverse?
Yes, works just fine
It’s a good idea to put a rag around your BB shell too, otherwise you’ll probably get some scratches.
[i]“The lock ring is now unnecessary.”
[/i]This however, is bad advice.
Take the lockring off and do a massive skid dude, as long as you have a front brake to slow you down after it comes off.
Is it possible to thread the hub if you over tighten the sprocket or lockring?
Yes. (if you mean strip the thread)
wait. so i strip it if i overtighten, and i strip it if i don’t tighten it enough, surely i’m not meant to be using a torque wrench?
The much greater risk is leaving it less than sufficiently tight, as you’ve discovered. I’ve never stripped anything by (over)tightening.
Shimano suggest 17-35Nm on the lockring, but you’d need a specialised tool to check that torque. Get someone experienced to show you how to do it.
this is rubbish. the point of most resistance is just before the wheels start skidding. after that you have broken the ‘surface resistance’ between tyre and road and the length of the skid is irrelevant. maybe doing lots of skids will help but ultimately its an expensive way to perform a function more easily done in a smarter way.
Someone clearly didn’t pay attention to static vs sliding friction in school.
me or him?
Engineer? ha
Not you Nik. And it’s high school level physics, not tertiary.