Originally Posted by progre-ss

1) Did it to my old Trek 930 and now running it on my new to me Kona Lava Dome. Just brake apart the cassette and space out the cog with the spacers from the busted up cassette. You will probably need more spacers. I'd recommend getting a BMX cog like the Shimano DX ones rather than using a cog from your cassette. Make sure your chainline is perfect to avoid the dreaded chain throwing.

2) I used a BMX half-link to get my chain tensioned properly. Works like a charm. I've heard of people using derailleurs as tensioners...involves a shortened piece of cable and adjusting the derailleur. I've also seen a pic of someone who used an old V brake arm bolted to the derailleur hanger with a pulley attached to the brake arm as a tensioner. I'll try to find a pic or link.

Here's a link to a good SS FAQ page...http://www.mtbr.com/faq/ssfaq.shtml