[Closed] Creak Diagnosed

I'm guessing it's that chain ring bolt that's making all the noise!

Somebody's stolen your chain and replaced it with a rubber band?

(You knew it would be coming... 😀 )

(How on earth do you "lose" that many chainring bolts? Has somebody pinched them ?? )

Yourbikehatesyou

Quite surprised that only makes 'minor creaking' 🙂

Good save!

Yeah, I think if I remove that bolt it'll be much quieter!

Not quite sure how I've managed to lose that many bolts though, I've never lost one before in many years of abusing bikes. Maybe my wife has been sneaking out to the shed and loosening them off, although as I have the only key, that sounds unlikely 🙂

Quite glad I had a look this evening rather than waiting for the inevitable slightly sub-optimal consequences. Incidentally, I actually bought a proper chainring tool last week, so I'll get a chance to use it now 😀

Cheers, Rich

Still using your battery casings Turbo, awesome bit of DIY.

Glad that's working better than my ability to tighten chainring bolts 😀

Cheers, Rich

Long shot but I don't suppose your still doing the battery box's?

Be interested in one if you are

Proper lol @ 'sub optimal consequences'
We call that a bollock stem interface

So it turns out chainring bolts are just unnecessary clutter.

You're on the brink of a new drive train standard.

[s]3x...[/s]
[s]2x...[/s]
[s]1x...[/s]
All hail [b]0x....[/b]

I had similar with a rear disc recently. It was feeling a bit odd and I also had a rattle that stopped when I braked.

When I finally stopped to have a look I had 2 of 6 bolts left! And one was hanging on by a couple of threads...

Made it home by stealing 2 from the front disc.

I know belt drive is supposed to be low maintenance, but you've been taking the piss a bit there.

Loctite 243 next time. 🙄

New bolts ordered, and I have plenty of different sorts of Loctite in the shed which I shall make use of 🙂

I did have the centre-lock rear disc come loose on an early ride and get all rattly, that did get some Loctite on re-assembly!

Cheers, Rich

Could they have been nicked?

I'm hoping not, that would suggest I have a saboteur in the midst...

Cheers, Rich

So, the new short chainring bolts I ordered arrived, complete with Haribo, in the usual speedy manner which I expect from Wiggle, and I went to fit them.

However, I discovered that the idiot who had assembled the bike originally had blindly assumed that short bolts were required without doing his due diligence 😳 The Gates Carbon Drive belt pulley (as opposed to a chainring) does not have counter-bored bolt holes, so normal length bolts are actually required. The short ones had the sleeve only protruding through the pulley, not into the crank-arm, and the threads were loose in the arm. This means the pulley was free to move a bit, making it understandable how the bolts came loose, chewing up the crank-arm holes in the process.

Normal length bolts duly ordered and I'll have another attempt to rectify when they arrive!

Cheers, Rich