Circumference of 650 Wheels? Continential isn't giving this out...
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1285 days
JamieM posted 1 year ago.
I just checked the manual for my computer (Cateye Astrale 8) and for a 650x23 they reccommend 1938.
551
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1309 days
vanjames posted 1 year ago.
Polar manual for S625x recommends 1952 for 650x20C
.jpg "rjkowski's picture")
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1280 days
rjkowski posted 1 year ago.
Doing an actual measurement is always going to be the most accurate method, however 1794 seems too low. Measure again.
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770 days
djrez4 posted 1 year ago.
C=∏D!
∏=3.1415926535 (that's all I remember offhand)
(I'm such a nerd)
-Dave
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451 days
homey posted 1 year ago.
Thanks fellows... I will measure again and probably use 1938 and compare with other competitors after Sunday's race. Thanks again!
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1309 days
vanjames posted 1 year ago.
Thats for 650x23C. You asked for 650x20C which is 1952.
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1309 days
vanjames posted 1 year ago.
Thats for 650x23C. You asked for 650x20C which is 1952..
277
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770 days
djrez4 posted 1 year ago.
Not to rain on anyone's mathematical parade here, but wouldn't a 20c tire, being smaller than a 23c tire, have a smaller overall circumference?
-Dave
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451 days
homey posted 1 year ago.
Hmmm... well I did the 27K course on the weekend but, it came out 28.48K but, the course may have been long so I guess I'm no further ahead. I will keep checking with buddies on rides and see what happens :(
I'm hoping someone can give me the proper wheel circumference for my 650x20C 20-571 Continental Grand Tour 3000 tires b/c I don't think it's correct and i'm getting frustrated. I've emailed Continental a couple of times and they haven't responded.
Right now I'm using 1794 mm (which I measured on the floor) and it's shattering my confidence in that it seems like i'm not going anywhere fast :eek: . Does this sound right for my cyclometer or is another number more appropriate.
thanks!