Stem & Bars - poor fit

General Help
1

Im having a few teething problems with my first build and need some help!

Ive got a 26mm Cinelli stem and 25.4mm riser bars, ive tried to pack bars out with rubber and thin pieces of aluminium, however they are still twisting as soon as I put pressure on them. Can anyone just a better was to make this a tight fit? Or does anyone own 26mm bars that they might be willing to sell to me?

Also, my chain tensions loosens after a few skids. Im running a SRAM 8sp chain and Ive done the axle up as tight as possible, but Im still getting movement. Any hints to help it maintain its tension?

Cheers,

Alex

2

For the bars and stem, just go down down to your LBS and get yourself a shim, they’ll no doubt have one

3

I had the same problem, I have a 26 or maybe 26.4 stem and my 25.4 nitto drops. I shimmed it with a rockstar can but that slipped, so I threw in a few more layers and now I can jump on it without moving, just make sure your stem is tight, but don’t bend the stem cause you don’t have enough coke can in there.
Kookie sells a 25.6 to 26mm stainless shim if your LBS is scared of being sued like mine was, but I reckon aluminium would make a better shim

4

Ive cut up a coke can and made a few layers with that, but its still slipping under load.

Ill head down to my LBS and hunt out a shim.

Thanks for the help. Fingers crossed

5

No luck at any of my local bike shops, tried 6 shops in fact.

Has anyone got a shim lying around that may help solve my probelm?

6

try assembling it with some anti sieze compound. It’s used to put together aluminium engines with disimilar metals, any car parts store will have some- also great on bottom bracket cups- worth a try anyway.

7

Nitto make a perfect shim. Anything else and the more layers you add the more it slips.

Find some 26.0 risers? :-o :wink: