Dan333SP

333SP is a type of race car I was enamored with when I started internet'ing back in the 90s. I think it was my AIM screen name at one point, and it sticks for forums now since I don't see the need to be any more creative.

Fly2High

I was flying R/C sailplanes and I always had a fear of losing the plane. I always thought I was flying too high and might lose sight of the plane or lose radio connection. Having a 3M+ wingspan plane up high enough so that half of your pinkie nail would cover it is pretty high. I would gently dive the plane to a lower altitude until I felt more comfortable.

Ironically, I never had a plane fly away.

That's how I became known as Fly 2 High -> Fly2High since back then, spaces weren't allowed. It stuck and have kept it ever since.

grampa.sjb

I'm a grandfather, and "sjb" are my initials. Simple, eh?

Bad_Luck_Blonde

Well,
It started when I was 5 and ran head first into a light pole, my forehead had to be sewed back together.

cicatrize

Mine started with a song from the band, The Mars Volta. It's called CicatrizESP, derived obviously from cicatrize and ESP, and I like the word cicatrize, so I use it for many of my online handles. It's also almost never taken.

dogfather69

My mother had given me a shirt it had THE DOGFATHER on it, but it looked liked the cover of "THE GODFATHER" movie

igosolo

Well, I do ride by myself 99.99% of the time so it fits......

Hot Potato

Well, I hadn't heard the term "off the back" yet, and dropped seemed too .. Too..... Too something.

junkman71

junkman refers to that I haul off junk bikes and fix and sell them.... the 71 is my birth year

Jeremy_S

Lead butt, maybe the best user name yet. Seriously.

Mine is my first name and last initial. I used "slodsm" for probably 15 years online and finally just started using my name since I haven't owned a ridiculously overpowered all wheel drive turbo car that I'd goad people into racing me for money with their "fast cars" in a very long time. Figured it was time to retire that name.

K.Katso

If you say my username in English, but with an Italian accent, it sounds like you're saying "che cazzo," or "WTF".

Agent Cooper

I'm a fan of a certain classic TV show. Obviously. Guess I couldn't be bothered to think of a snappy, bike related monicker at registration time.

YouthxCrew

A song title from one of my favorite bands.

nondes 

My first bike was cobbled together from bits and pieces by my Dad. So long ago, it had bar brakes. When we took it to the police station to register it against theft, the cop filling out the form wrote "nondes" under "brand". When I asked my Dad how he knew what the brand was, he told me it just meant "nondescript".
I still ride a "nondes", but it has a titanium frame.

cydewaze

My username is a leftover from a nickname I had when I was young, which was based on my driving style of the time. Of course the actual spelling was taken so I came up with a creative spelling variation. I tend to reuse it on forums regardless of topic because it's rarely taken.

The problem with reusing it is that it makes me fairly easy to stalk, and having had an online stalker before, I'm probably stupid for not changing it.

caloso

It refers to my alma mater and its mascot.

Reynolds 

My first real road bike was custom made, but I never knew by whom, so I called it "the Reynolds".

79pmooney

Mine is the the bike that I had made to accompany me through my post racing, post head injury years. I knew that final post crash year of racing that it was my last, that the racing
bike I was riding and loved wasn't staying with me and that I needed a bike just as good but that wasn't a racing bike and that could do anything. So I had a bike built that be ridden in the 48 states 12 months of the year using whatever wheels and tires were available. (Remember, this was 1978. Were we going 700c or 27" in the USA? Could you get 700c winter tires in say Bangor, ME?)

So my Peter Mooney was built with cantilever brakes set halfway between 700c and 27", clearances for huge tires and fenders, long chainstays for panniers and racing angles to get the position of my racing bike. (Peter was an NEBC clubmate so I got to see his beautiful work regularly; in that post crash year he assisted me after I crashed with two long pulls, then threw me up the road by my seatpost. I caught the field and sprinted to place. It never occurred to me that anyone else was building my bike.) The bike has classic Peter Mooney steering, rides loaded beautifully and light very well until I do a bumpy downhill corner, then the long chainstays make the rear end too light and bouncy. It was ridden with sew-ups until 1995.

The bike is a compromise, but one that has served me very well. It's primary reason for being was to help me stay sane over those crazy post-crash years and it did. One of its early rides was into the Santa Cruz, CA hills and down Alba Road in a winter storm. 2000' down in 4 miles. Rivers an inch deep of water running across the road. The cantis were a good call! Some crazy long rides, many times up Mount Diablo where I serripitiously camped several times or around on Morgan Territory (always rding out from Alameda Island in the South Bay). Got caught in a rain shower on the back side of Seattle's Lake Washington in a rain so hard the frogs were cowering under whatever shelter they could find.

It has been demoted to a market bike; 4 panniers and 32c tires, but is is ready to tour anytime I get the itch. Maybe I should set a goal of getting it to 50,000 miles by May, 2019, its 40th birthday.

Oh, it's (his) name is Pete. Not Peter like the builder or my brother or my uncle. Just Pete. Don't ask me why. I was JRA, 1982 and I realized that was his name. I didn't make it up.

Ben

Nachoman

When I was in junior high school Spanish class there were three kids named David. I had the choice of being David (pronounced duh veed) numero tres, or pick a new name.
I picked Nacho.

avmech

AViation MECHanic

1nterceptor

Used to ride motorcycles(mostly sportbikes). One of the best model I ever owned/ridden was a Honda Interceptor.
Not sure if it was the 1st street legal bike to have fuel injection(or one of the earlier model), single sided swingarm
and V4 engine.

Wingsprint

A type of race car I have driven and owned.

RocThrower

I'm also a disc golfer, and the Innova Roc is one of my all-time favorite discs to throw.

big chainring 

When riding with Chicago's very own Big Al, he would often say " You gotta ride in the big chainring." I was a small gear spinner and usually in my small ring.

Dan333SP

What about the other bit?