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Help me lighten up!(22 posts)

Help me lighten up!konabro
Jan 14, 2002 8:14 PM
I just bought a 2002 Giant TCR aero bike size small. It weighs a hair over 20lbs. Components are shimano 105, wheels are shimano R535, pedals are shimano R535, fork is Giant composite, bar is Cinelli Altera, stem is Giant composite, saddle is Selle Italia XO, seat post is Giant carbon aero, and also has Cinelli clip on aerobars. I want to get this weight down, any ideas on the best ways to lighten up?

-Steven from NM
re: Help me lighten up!tempete
Jan 14, 2002 8:39 PM
Simply go to Shimano site and compare; 105 to 600 or DA; cranks and BB, hubs and freewheel are quite heavier. Then there are the shifters/brake levers...

Saddle can be lighter too and if you don't need the handlebar...

Pedals are light as! But there are much lighter ones, incl. titanium spindles Hoooooo $$$$$$.
Endless possibilities. but I am not a weight freak (except for my gut)

but hey! It's a great bike! You don't have any weight to loose? (and SAVE money instead of spending?)

Nice wheels, but that's where the weight counts... especially at the rim/tire/tube. Rotating weight man! bad weight.
Lose the aerobarsspookyload
Jan 14, 2002 9:00 PM
That is the obvious way to lose some weight. I would look into replacing the tubes. Manufacturers tend to use beefy tubes because they are cheap. I had a set of stock wheels that came with a 130g tube. So by replacing two of them with supersonic tubes I lost 120g. Pedals could lose some weight with speedplays. Saddle too, but don't compromise comfort for weight there. Bars/stem with carbon bar/mag stem. But now you are talking big bucks. You didn't mention the tires, but I would guess 23mm hutchinson. Look into a 20mm veloflex or 20mm Michelin. The other repsonse was right about rotating weight. That is where it counts most besides the doughnut storage tank.
P.S. nice ridespookyload
Jan 14, 2002 9:01 PM
nm
Isn't there a weight-weenie Web site somewhere?Elefantino
Jan 14, 2002 9:06 PM
I remember once going to a site that had weights, in grams, for almost every major component group, wheelset, saddle, stem, post, bars, etc.

Does anyone remember what it is? Might help 'bro out.

PS: I mean "weight weenie" with no disrespect.
Mike
Here it is!!Peter E
Jan 15, 2002 2:23 AM
http://weightweenies.starbike.com/
Here it is!!Peter E
Jan 15, 2002 2:26 AM
Sorry, seems to be a MTB-weight site
It's a nice bike, I wouldn't change a thing!Dutchy
Jan 14, 2002 9:26 PM
Considering you just bought the bike I wouldn't change a thing. If it was an older bike I would say
change the group-set for Dura-ace, this would save ~500grams. If you have money to spend then
this is one option along with some light rims eg Krysiums(sp) at the end of the day you might save up to 800grams
which is one full water bottle, hardly worth all the money really. If you wanted a REALLY light bike it would have
been easier to just buy one.

It's a nice bike, just ride it man!

CHEERS.
It's a nice bike, I wouldn't change a thing!Woof the dog
Jan 15, 2002 12:26 AM
its true, if you want to lighten up the bike you'd have to replace wheels, gruppo, tires/tubes stem, headset, and that is over a $1000 bucks right there. It would be much easier to buy a whole new bike that has lighter components. That is why my next bike will be put together the way I want it.

Sincerely

Woof the dog.
re: Help me lighten up!Timo Vennonen
Jan 14, 2002 10:22 PM
The most expensive way to get a light bike is to buy a heavier bike and then upgrade. That way you end up paying twice for your stuff... Consider seriously, whether you really need a lighter bike, it looks like a nice ride as it is. If I did my math right, 20 lbs is only 9 kgs - way light already!
re: Help me lighten up!tacoShoppe
Jan 14, 2002 11:58 PM
the easiest way to lose weight is to start w/ a light bike, that's definitely true... but you have the money to spend or will do so in the long run, the first thing i'll lose is those wheels. i have a set, they came on the bike. I use them as training wheels only now. They're great wheels but are definitely not light, not even close. so i would lose those first for maybe a pair of DA laced to open pro's, u can spend more for even lighter weight, i would recommend velomax accent comps also. You can lose maybe up to 600 grams by going from all 105 to Dura Ace. lighter bar, stem, saddle and post will also lighten the weight. If you race the bike exclusively for time trials, use Conti-supersonics as your race tires, they're the lightest clincher tires you'll find, but only last for short time, so don't ride them if you're not racing. mid ranged bikes also might have a steel steerers on the fork, swap that out for one w/ a Al alloy or carbon steerer. (personally that's where they hid the weight in my bike, i had a small full ultegra bike that came stock at 21lbs... couldn't figure out where the weight was coming from)
You forgot one thingpmf1
Jan 15, 2002 4:49 AM
OK, lets see:

1. New wheels
2. New components
3. New bar
4. New stem
5. New saddle and post
6. New tires
7. New fork

Might I suggest a new frame as well? You could probably drop over a pound going with a LS Ghisselo (sp?) or Colnago C-40 frame.

Come on, would you really spend twice what this bike costs on upgrades? Might as well just get another bike if you're going to be this obsessive. If it were me, I'd just remove the aero bar and start saving money for a new bike.
do overDog
Jan 15, 2002 6:33 AM
I think you are simply starting out too heavy to worry about weight weenie stuff. It really only makes sense if you do most everything, not just a little here or there.

Nonetheless, the first most obvious thing is the aerobars. There's a pound. That saddle is heavy, try an SLR. I could go on with every, single part on the bike. It would not be worth your time. You'd want all Dura Ace and lighter wheels.

Dog
be happy with what you have- for now anyways :¬)amadablam
Jan 15, 2002 6:42 AM
The bike looks sweet as it is, I think you would be best off just riding it stock, remove the aero bars if they are not a necessity, to loose 2-3 pounds off the bike you would spend more than the value of the bike on upgrades which is insane. Why not just get out and ride plenty with what you have, your weight will drop, you will get fitter while saving for the new bike which you could set up as you like.
I agreeDog
Jan 15, 2002 6:52 AM
Yes, I'd say enjoy the bike as it is. It will work fine, even if it might be a pound or two heavier than some buddy you are racing up a hill. If you fall behind, it's not the bike. Believe me, a weight weenie who gets beaten up hills on a regular basis.

Dog
loose the front brake? ha ha ha...tempete
Jan 15, 2002 11:31 AM
Actually, I think there is a consensus on this; it's a fine bicycle. I was looking at the same one this sat. at the local shop... I was thinking what a great road bike it would be without the aero bar! (but then, that's my riding thing...)
It's a lightweight bike allright!
My TCR2 is the standard 105 bike. Of course a titanium BB spindle will make it lighter, so will removing the saddle and the FRONT BRAKE for that matter! (ha ha ha ha) ; )

Enjoy it!
LMAO :-) nmjs5280
Jan 15, 2002 12:59 PM
Advice from a weight weenie...biknben
Jan 15, 2002 7:00 AM
Don't go wasting money on a bike you "just" bought. The weight is not light by many people's standards but it's not a tank either. Aero bikes tend to be a little heavier anyway. They sacrifice weight for aerodynamics. I assume you bought it for it's aero benefit. If you were looking for a climbing bike you probably made the wrong choice.

Reevaluate the bike intended purpose. If you are you Crit racing and climbing, think weight. If you are time trialing or doing long solo rides, think aero.

Ride the bike for a little while. Things like wheels, saddle, pedals, and handlebars are very personal and you may find that you don't like what came on the bike. When you decide to start swapping parts, THEN pay attention to weight. At this point, don't make weight the only factor. It could very easily cost you more than the bike did originally.
Lighten up already!Bender
Jan 15, 2002 8:22 AM
Save you hard earned $$$, take a healthy bowel movement before you ride, and train you self silly. Training is free and the most effective way to improve your bikes performance.

The savings just keep piling up at my house!

Cheers
re: Help me lighten up!konabro
Jan 15, 2002 12:27 PM
Thanks for all the advice. I think for now I am going to upgrade to an SLR saddle and speedplay X2 pedals. I am also going to take off the aerobar.

It seems that rotating weight is the most important weight to get rid of. Why? I have heard this before, but why?

I also realize that it is ridiculous to totally upgrade absolutely everything on the bike (even the frame someone said), I guess I should refine my question:

What are the top 3 best ways to lighten up?

Thanks,

Steven
Rotating weight and moretempete
Jan 15, 2002 1:05 PM
This is only my opinion. Don't fuss me about the physics.

Think about the roller for exemple;

Your own mass stays pretty still, and it's only the wheels, pedals/drivetrain that move. These components have to go up and down, fight friction and accelerate at every rotation (sustained effort) to maintain the speed acquired.

Now transpose to you on a moving bicycle. Your mass is inert and you need to propel it ahead. Then this relative mass gets going and accumulates energy (you discover how much energy when you crash or burn a few brake pads!) But once it gets going, is stays steady in a linear movement.

Wheels will keep moving, needing to accelerate or slow down often. Take the tube valve stem weight... It goes around, up and down right?

Now take bean can in your hands (finger tips...) and rotate it on itself (as the hub does) you can get the idea that once it gets going, it spins ealisy. Take the can in your hand and swing it (ok, don't do that!) in shoulder circles, or even at the end of a rope... How much do you need to get it going or to slow it down? Rotating objects have a "tangent acceleration" (not sure of my english here) compared to a linear acceleration. The further they are from the center of the rotation, the faster they go (compared to the center), the more force they require to move...

The weight of a saddle is static in comparison, but it is placed high on a bike, therefore influences quite a bit since it modifies the gravity center.

Three enlightning tips: your own weight, liposuction, get rid if the beer gut.

Seriously:
1)GOOD WHEELS,
2)PEDAL-cleats/SHOES,
3)cranks/bottom bracket.

Secondary is the seatpost/seat, freewheel. Carefull about things like stem/bar and forks. Your weight and riding style are in consideration.
Mandarin White RussianLeisure
Jan 16, 2002 1:52 AM
Absolut Mandarin in place of the regular vodka. Also try Blackhaus Blackberry Schnapps shots chilled. But don't drink and ride!