Out of curiosity I decided to weigh my bikes. My Klein Q Carbon with Ksyrium Elite's weighed in at 19 pounds. Can this be accurate? Thanks

Sounds a little high, my TCR with D/A and open pros weighs a little under 18 on a pretty reliable scale

i don't understand the logic here.

you weighed it, and that's what the scale reads, so unless your scale is manfunctioning, i'd say that is accurate!

what other components are on the bike?

Well the reason I am questioning this reading is I am not sure if my scale is accurate or not. The bike has 105 everything. and Egg Beaters.

probably true. unless you have a problem with the perceived weight (whilst riding), i dont see how it would matter what the numerics are

Yeah, that sounds about right I guess. Actually it's less then I would expect for a 105 equipped bike. Where you expecting more or less?

My '04 58cm Trek 2200 with FSA Carbon Pro Team Issue cranks, Chris King/Velocity Aerohead wheels, Speedplay Zeros, Terry Fly Ti saddle and Tacx cages weighs in at around 18.5lbs. for comparrison.

Well, look at it this way:

The 2003 105 grouppo (Levers, brakes, cassette, Crank, bottom bracket, chain & Derailleurs) weighs in at ~2,600 grams (or 5.75 lbs)

The Klein frame weighs in (assuming a 55cm size) at ~1,450 grams (3.25 lbs) and the fork weighs in at ~450 grams (1 lb)

The Ksyrium Elite's weigh in at ~1,750 grams (3.85 lbs)

So far this equals roughly 14 lbs

Now add the weight of these items:
Saddle:
Post:
Clamp:
Headset:
Tubes:
Tires:
Rimstrip:
Bars:
Stem:
Tape:
Cables:
Cages:
and any other doo-dad you have on your ride...

Voila, that's what your bike weighs.

WARNING:
BE VERY CAREFUL about contracting the "weight weenie" syndrome. This is a particularly virulent and nasty disease that can have disasterous consequences on your wallet!

I caught the bug and it has taken practically ALL of my excess funds. It's like I am a gram junkie or something. I should probably check myself into the Betty Ford clinic.

*on the plus side my bike is closing in on the sub 16lb barrier

Why not just RIDE the bike!!

Unless you are interested in racing CAT 2 or going PRO of course (in which case you will ride what your sponsor tells you to no matter what it weighs)

some variables to keep in mind is that, when manufacturers list weight, they usually list the weight of a 52 or 54 cm frame, without pedals, botle cages, and usually with lightweight [latex] tubes. a larger frame will weigh more. period. without pedals [@ 250g], your bike probably comes in at 18.5 lbs. with latex tubes, lighter tires and no additional hardware, it's probably about 18 lbs. for a 105-equipped bike, that's pretty respectable. my 51 cm steel marinoni weighs about 19.5 lbs with pedals.

btw, unless you are a super-fit king of the mountains type, a pound or two either way on the bike will make absolutely no difference to your performance, except psychologically.

All true points. Manufacturers definitely LIE about the product weights. Don't believe the hype.

As far as a pound or two not making a difference though...I know that as a cat 3 racer, 2 pounds certainly makes a huge difference. As your quote states:
"Sometimes it IS the bike". Every little bit helps when you are struggling up that hill...even if it's ONLY psychologically.

i should have said "if you are a recreational rider." i know that i'm a serius weight weenie when it comes to by cyclo-cross bike, because i race 'cross and not road. for a cat3 racer, i can imagine 2 pounds would be a big deal. you're probably not carrying a lot extra when you're at your race weight, so the only place to lose it would be on the bike, or amputation [not a great option]. on the other hand, you probably have extra-light race-wheels, with lightweight tires and latex tubes to shave the pounds.

most recreational weight-weenies have to understand that, when you're talking about bike weight, you're talking about the combined weight of rider, clothing, bike and hardware. a full-dressed rider wighing 190 lbs in his kit, shoes and helmet riding a 16 lb bike, only has a 1.5% weight advantage over the same rider on a 19 lb bike.

Agreed.