mudanoman: SSSS Project - Page 2

mtbfreerider182 · 01-12-2006, 06:44 PM

Wow, it's turning out to look pretty sweet! Keep 'er goin'!

mudanoman · 01-12-2006, 08:54 PM

SSSS is now semi-complete (just need a saddle, pedals, and seat collar). Since I was anxious to get a feel of it, I stripped some parts from my SX. :13:

The drivetrain actually took more time than I had anticipated. The problems I ran into were a skipping chain (upon climbing hills and exerting force) and a noisy tranny. Below are some changes/fixes that helped fix those problems:

1. Replaced the toothed pulley with a mrp roller. Its actually quite easy to do this modification. Just drill out the mrp roller's threaded bushing and find a longer bolt. This helped lessen the noise as well as chain alignment since the hanger is slightly bent.

2. Tommy you were right about the Gusset Conversion Kit. I ended up having to shift the cog out using a combination of spacers and the thicker Gusset spacer. I also ran the 36t ring on the inside. A straight chain line is crucial!

3. The PC-1 SRAM Single Speed Chain was useless. Its beefier than the conventional chain, but had a lot of play on the cog (space left and right) and the thick quick-link did not go well with the original pulley tensioner (its my fault for the lack of research). I ended up fitting a KMC Z-Chain (narrow) which fit much better and also helped smooth out the remaining noises.

Should be complete in a week or so when I get the remaining parts. Out. -Ivan

mudanoman · 01-15-2006, 05:07 PM

Photo by B:

obionespeedonly · 01-26-2006, 08:25 PM

Run your tensioner in a push up instead of down manner so you don't run the risk of 1/2 tooth less engagement when you need it most. Pedals and shins don't mix.

1. So, wanna ride soon?

2. FYI- anyone else wanting to try this, if you get the chainline nearly perfect, you can skip the "Rennen" style tensioner and use your chainguide as a tensioning device with vertical dropout frames. This gives both more tooth to chain contact (always good) and saves a few bucks.

3. If running a Surly or Rennen tensioner on a older set-up, make sure you have either a decent replaceable hanger, or a new spare, as sometimes while getting things "right" it can tweak or break the hanger.