Cafe Racer Forum banner

1 - 17 of 17 Posts

·
Registered
Joined
·
504 Posts
Discussion Starter #1
JB,
I bought a scale tonight and weighed a couple of my bikes. The 180 twin is 210lbs and the 125 YA6 is 185lbs. That's without any weight reducing holes, titanium etc. I didn't dig out the CT1 yet.

FC
 

·
Premium Member
Joined
·
11,267 Posts
Frank...I know you like to make things sound easy. But your bikes are stripped down to the bare minimum and with the two strokes the engines are already 30 lbs lighter than a four stroke.
So let's talk about how light they COULD be, not how light they are. Add that 30 lbs of engine back in and you are up to 240 lbs.
Just think about my Honda twin...it's got that big heavy four stroke engine and still only weighs about 200 lbs. Just think how light it would be with a two stroke.
The best way to judge the weight of YOUR bikes is....not light enought to beat MY bike....even with my 200 lb butt riding them :)

By the way...in future please refer to me as "The New 200GP Champion" who was it that won last year? I can't remember :)
JohnnyB

PS. Mary only likes hugs from Champions



Edited by - jbranson on Oct 28 2006 04:36:05 AM

Edited by - jbranson on Oct 28 2006 04:36:28 AM
 

·
Registered
Joined
·
23,303 Posts
how are you guys weighing your bikes? Can you recommend a scale? Do you have to buy two scales (one to put under each tire) to setup weight bias or what?
 

·
Registered
Joined
·
504 Posts
Discussion Starter #4
quote:
how are you guys weighing your bikes? Can you recommend a scale? Do you have to buy two scales (one to put under each tire) to setup weight bias or what?
I bought a $17 bathroom scale. It's close enough for me. My CT1 with the RD200 front disc brake weighs 190.

FC
 

·
Registered
Joined
·
23,303 Posts
quote:
quote:
how are you guys weighing your bikes? Can you recommend a scale? Do you have to buy two scales (one to put under each tire) to setup weight bias or what?
I bought a $17 bathroom scale. It's close enough for me. My CT1 with the RD200 front disc brake weighs 190.

FC
CB750s are close to 500 lbs, bathroom scales stop at 300lbs.
 

·
Registered
Joined
·
504 Posts
Discussion Starter #6
[/quote]

CB750s are close to 500 lbs, bathroom scales stop at 300lbs.


[/quote]

I weigh one end at a time.

FC
 

·
Registered
Joined
·
2,595 Posts
When I weigh my bikes I use a 5' 2x6 that I can roll the bike onto, then place the scale at the front, roll the front wheel on, record the weight, then place the scale at the rear, roll the rear wheel on, record the weight and add the two up. The 2x6 makes it easier to roll the bike onto the scale, and reduces the height differential from the scale to the ground that may throw off the accuracy otherwise. And it's more scientific, like.

FR
 

·
Premium Member
Joined
·
11,267 Posts
I usually weigh my with the scales at the scales garage at NHIS once a year...I take note of it then weigh any components I add or subtract during the season.
I also to the one end at a time bathroom scale thing...but I've seen them off by as much as ten pounds. I'll test bathroom scales with lifting weights....they can be way off sometimes.
JohnnyB
 

·
Registered
Joined
·
434 Posts
The new digital scales are accurate, and fairly cheap. I guess you can weigh each end and add them, the cops weigh our trucks like that. I always feel like some of the weight is getting weighed twice, know what I mean? I just feel that it can't be an even half and half, more like 3/5ths and 3/5ths, like they're cheating. I'd be interested in seeing if Frank's bikes weighed the same on a one shot scale.

Dgy
 

·
Premium Member
Joined
·
11,267 Posts
I guess to do it right you have to lift the end that's not being weighed to the same height as the end that is being weighed.

I still can't figure out how the trailer scales work...I pull my truck up on the scale...that's three axles including the front...somehow they can tell me what my trailer weighs....or maybe reggies for trailers only require the weight that is actually on the trailer axle....I don't know.
JohnnyB
 

·
Registered
Joined
·
23,303 Posts
quote:
I guess to do it right you have to lift the end that's not being weighed to the same height as the end that is being weighed.

I still can't figure out how the trailer scales work...I pull my truck up on the scale...that's three axles including the front...somehow they can tell me what my trailer weighs....or maybe reggies for trailers only require the weight that is actually on the trailer axle....I don't know.
JohnnyB
to do it right the bike has to be level, depending on weight bias you can be up to 30 lbs off if the bike is not level when you are weighing it. I used to take my GTO to truck scales back when I was still bracket racing and I cared about weight. I thought about taking the bike to a truck scale but they aren't open the hours they used to be.

If I was still drag racing then $950 for the ability to setup weight and weight bias woul dbe worth it, espically since I could do both the car and the bike, but for street cafe racers $950 is more than I spent on my last 4 bikes.

http://www.advancedracing.com/products2.php?prod=exacto2

In new orleans, my buddy used to set up his race scales with those pull down scales like we used to use in science class (he got heavy duty ones from a farm supply store). He would hang the bike from the rafters using the scales and some rachet tie downs (so he could adjust if they were level.

Don't know how you could setup bias with this scale but it is a floor scale that you could easly make a platform for a bike to be weighted on:

http://www.affordablescales.com/scales_specs.asp?specs=1168


these are similar to what my friend would use - they work pretty well:

http://www.redhillgeneralstore.com/A27886.htm



Edited by - geeto67 on Oct 30 2006 11:39:21 AM
 

·
Premium Member
Joined
·
11,267 Posts
My 175 is 295 lbs stock.
It's about 205 right now. But...it's a sloper, the frame is 11 lbs lighter than a vertical (175/200)....so, it's tough to get a CB200 to lose 100 lbs.
I can't see a street legal, and practical CB200 going under about 240 lbs. I have so seriously light shit on my bike.
You'd have to take off just about everything that wasn't absolutely necessary to race to take off 100 lbs. And even at that you'd have to have exceptionally light tank, seat, exhaust, tires, no battery, no alternator, no starter, no side/center stand. I'd have to really struggle to find another 2 lbs to take off my bike.
JohnnyB
 

·
Registered
Joined
·
13,809 Posts
duh, we have a scale in the garages at nhis. ive weighed my bike there. god, i cant remember what it weighed.

jc
 

·
Registered
Joined
·
1,291 Posts
PS. Mary only likes hugs from Champions


NICE, I Get one!!!<img src=icon_smile_big.gif border=0 align=middle>

Champ
 

·
Registered
Joined
·
504 Posts
Discussion Starter #17
quote:
PS. Mary only likes hugs from Champions


NICE, I Get one!!!<img src=icon_smile_big.gif border=0 align=middle>

Champ
NO...JB only lets her hug guys that are old enough to be her father......and are taller than her ;)

FC
 
1 - 17 of 17 Posts
Top