I will bite because I want to finish listening to this
Don Caballero album before I hit the sack.
FD - Front Derailleur
RD - Rear Derailleur
FH - Freehub
FW - Freewheel
BB - Bottom Bracket
TT - Top Tube or Time Trial
ST - Seat Tube
CTC - Center To Center (usually referring to the center of the crank to the center of the top tube)
CTT - Center To Top (usually referring to center of the crank to the top of the seat tube
FG - Fixed Gear (not fixie)
SS - Single Speed
JIS - Japanese Industrial Standards (a common cross head screw used on Shimano and other derailleurs)
NJS - Nihon Jitensha Shinkōkai (or the Japanese Keirin Association they standardize track bike parts in Japan for keirin/track betting races and used to oversee the races)
BSO - Bicycle Shaped Object (low end stuff from big box stores and non-bicycle online retailers)
NDS - Non-Drive Side (the side of the bike which doesn't have a chain. chainring(s), cog(s) and possibly derailleur(s) on it)
DS - Drive Side (the other side which has all that stuff typically on most bikes it is the right side)
Also some other useful notes
- If you see a dormant thread that has been dormant for a few months and you have nothing to of great importance to add, just let it go and find a recent active thread or if need be start a new one.
- If you only have a single question to ask and plan on not sticking around and being an active member, please use Yahoo! Answer, Googles, Ask Jeeves, DuckDuckGo, AltaVista, Meta Crawler or one of the many other search engines out there.
- Don't try to sneakily advertise your products from overseas or get free advice from people for your business, pay people to do focus groups like everyone else or set up a table outside and hand out free samples.
- If you want to post pictures, truly join the forum and be active in it and you will soon be able to post pics or just see RULE #2
- Please if you aren't going to follow the rules of bicycle photos at the very very very least take at least one photo of the drive side of the bike the other side isn't that exciting unless completely different paint or something amazing that you cannot show on the drive side.