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Just weighed my GP4000 S tires and they came out to 224g/ea. They're marketed as 205g. Just a FYI. Whats everyone else's weight?
im sure that's why the bike way slow out of the cornersskyliner1004 said:guess i dont need to cry about it, but still, if its sold as 205g, 224 is pretty out of spec.
and yes, over the circumference of a 700c tire is where weight matter the most.
oh well. /thread.
Again, really? 19g over the circumference of a 700c tire is nothing. That's .642 ounces over the course of roughly 2090mm/82 inches. Do I need to do the math?skyliner1004 said:guess i dont need to cry about it, but still, if its sold as 205g, 224 is pretty out of spec.
and yes, over the circumference of a 700c tire is where weight matter the most.
oh well. /thread.
Wonder if they quote the 205g for the thinnest tire they make--obviously something like a 25c would weigh more than a 23c.skyliner1004 said:guess i dont need to cry about it, but still, if its sold as 205g, 224 is pretty out of spec.
and yes, over the circumference of a 700c tire is where weight matter the most.
oh well. /thread.
i'm not sure what your math is trying to conclude, but rotational weight at the outermost part of the wheel is where weight matters most. Although 19g is small, rotational weight is where you want the lowest weight on a bike. you can do all the division you want but the tire is where weight really matters most.backinthesaddle said:Again, really? 19g over the circumference of a 700c tire is nothing. That's .642 ounces over the course of roughly 2090mm/82 inches. Do I need to do the math?
Unless you're buying weed, 19g/.642 oz. isn't worth worrying about.
You can call it out of spec all you want, but it's not going to make a World of difference.
I'm sure they do. Just like when manufactures quote the weight of the bike they dont measure a 61cm frame. Usually a 54 or lessBocephus Jones II said:Wonder if they quote the 205g for the thinnest tire they make--obviously something like a 25c would weigh more than a 23c.
i'm sure they do quote the lightest picked one out of a large sample size. Mine is 10% heavier than their marketed weight. 10% is BARELY cutting it in my books. They're lucky they have their great BC compound.Bocephus Jones II said:Wonder if they quote the 205g for the thinnest tire they make--obviously something like a 25c would weigh more than a 23c.
If it makes you feel any better, mine weighed ~225g also.... and I don't care. I figure the tread is probably thicker and they will last longer.skyliner1004 said:i'm not sure what your math is trying to conclude, but rotational weight at the outermost part of the wheel is where weight matters most. Although 19g is small, rotational weight is where you want the lowest weight on a bike. you can do all the division you want but the tire is where weight really matters most.
IIRC the GP4000S is only made in 23C.Bocephus Jones II said:Wonder if they quote the 205g for the thinnest tire they make--obviously something like a 25c would weigh more than a 23c.
UK Site says 205g :http://www.conti-tyres.co.uk/conticycle/ti grand prix 4000S.shtmldrdiaboloco said:Conti's site, or at least the direct link to the 4000S, doesn't specify the weight. They do link to a review that claimed 207g, though Competitive Cyclist lists an "actual weight" of 229g.
FWIW, Conti claims 250g/ea for the Gatorskins I use, though I weighed them at 247g/ea (in 25's)... So the brand doesn't comprehensively run heavier than advertised.
And maybe 10% less flat.....PeanutButterBreath said:Look on the bright side -- maybe you will get 10% more wear.