thorn chainguards

[jul]

As you see, the chain touches the bashguard (i can't slip in a sheet of cigarette paper between)



However, i used 2mm aluminium spacers but it's not enought .. 3mm would have been fine i think.

So can i add a stainless steel spacers that i have at home ?



On these 2 pics, can you tell me if it seems ok ?

[martinf]

However, i used 2mm aluminium spacers but it's not enought .. 3mm would have been fine i think.
So can i add a stainless steel spacers that i have at home ?

Yes. Done this. If one per chainring bolt isn't enough, use two.

On these 2 pics, can you tell me if it seems ok ?

I think you probably need longer chainring bolts - after adding the stainless steel spacers there doesn't seem to be much thread left holding the bolt into the nut.

[jul]

So difficult to find the right length chainring bolts .. so currently my bolts stop at the middle of the thread (see pics)



About the nuts, they supporte the crank, the Surly chainring and half of my spacers so 1.5 mm (on 3mm)

The right length  will be : Bolts  :  9mm (under head)
                                     Nuts   :  10 mm   (  "  )