Rybar

I have been up and down google and forums trying to figure out if some 28" tires fit or are supposed to fit 700c rims. See a lot mixed answers and it seems like a somewhat convoluted debate, but maybe im missing something here. Was wondering since the tires i was looking at here are listed as 28" but are shown to be 47 x 622.

** not privelaged to post urls yet.**

schwalbetires.com/bike_tires/road_tires/marathon_plus_tour

11101057
47-622 (28 x 1.75)
SmartGuard
Endurance
Black-Reflex
$57.00
Size
28 x 1.75
Execution
Performance Line, Wire Bead
Color
Black-Reflex
Weight
1050 g
PSI
45-70
EPI
67
ECE

Tube
17, 19
Price$57.00
Art.No.11101057

Was only asking here because even they havent answered me yet.

Bill Kapaun

Bicycle Tires from Harris Cyclery

HTupolev

700c refers to a bead seat diameter of 622mm. Some companies also refer to it as 28", which is annoying and ambiguous. But yeah, if the tire is listed as 47-622, then it'll fit on a 700c rim.

Rybar

Hey, thanks alot.

Andrew R Stewart 

The other rim/tire fit aspect is the widths of both being agreeable to the other. A wide tire like a 47 will like a wider rim then a 25 tire does. Not that the 47 won't "fit" narrow rims just that for tire seating, max pressure, handling/cornering things go better with a wider rim. Since we don't know more data like what rim width or current tire size the OP has now it's hard for us to go further then a "Yes" answer. Andy.

cyccommute 

When sizing tires, only pay attention to the numbers I've bolded above. That's the only number that matters. Calling them 28" is just marketing and stupidly confusing. In actuality 27" tires are taller than the 700C tires that they call 28". The 700C uses a 622mm rim while the 27" uses 630mm rims.

29ers fall into the same stupid marketing category. They are wide 622mm tires.

nfmisso

700c is now marketing gobbly gook. Once upon a time, it referred to a tire that had an outer diameter of 700mm when inflated, and fit on a rim with a 622mm BSD. In ISO/ETRTO terms; that is a 39-622 tire. The 'c' represents the width/height of 39mm. There were 700, 700a, 700b, 700c and 700d and similar for 650.

agmetal

I don't remember the others offhand, but 700B is a 635mm rim, what the English call 28"

fietsbob

Its the 622 that counts .. The ETRTO dimension standard, that rims and tires meet, at the bead seat.

glued on sew-ups get labeled 28" too..

nfmisso

700 650
- 648 597 26
a 640 590 30
b 635 584 33
c 622 571 39
d 587 538 56

sorry for the poor formatting; the numbers under the 700 & 650 are BSD, the right most column is width/height of the tire - all rounded to nearest millimeter. This system was created in France; constant tire diameter, limited selection of widths (-, a, b, c, d). Originally 700 was for men and 650 for women. There is a logic behind it, but it no longer makes sense with the way rims and tires are manufactured today - but it does make sense with hub brakes.....

cyccommute 

I agree that the 700C, 27", 28", 650C, 26", etc are all confusing marketing terms. Even the way we "measure" tires is silly. The "measurement" is for the outside diameter of an inflated tire of some width. We really should drop all this foolishness and just go by the ETRTO designation which is an actual measurement.

On an rather unrelated note: The new Oregon sales tax law isn't applicable to bicycles that have "700C" wheels. The law states

The only bike that the tax could possibly apply to would be something like the Coker Monster Cruiser. The "wheel" of a "700C" bike is only 24.4" in diameter. The "wheel" of a 26" bike is only 22" in diameter.