How to measure if a tire will fit.
04-25-13, 09:51 PM
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How to measure if a tire will fit.
I have a new Fuji 3.0. I also have an almost new set of Continental Turing Plus In 700x37mm. I am wondering if I can put the Continentals on the Fuji. How would you measure this without trying to change the tire? Any advice would be appreciated, T.M.
04-25-13, 10:19 PM
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What issue are you asking about?
The rim fit, or the frame clearance?
Rim fit is fairly easy if you use the ERTRO size, ie 37-622. If your existing tires are xx-622, then the tire will fit the rim. There is also a tire width guideline based on rim width, but it has plenty of fudge room.
The issue of frame clearance is more complicated. Look at the available clearance both radially and side to side, leave an allowance of error, and for wheels going out of line on a ride (so you can get home after a deep hole). Then see if the difference in tire width compared to the originals will work (use the 2 digit width value --- ww-622 for comparison). the nominal tire width isn't gospel, so leave some room for variations.
The rim fit, or the frame clearance?
Rim fit is fairly easy if you use the ERTRO size, ie 37-622. If your existing tires are xx-622, then the tire will fit the rim. There is also a tire width guideline based on rim width, but it has plenty of fudge room.
The issue of frame clearance is more complicated. Look at the available clearance both radially and side to side, leave an allowance of error, and for wheels going out of line on a ride (so you can get home after a deep hole). Then see if the difference in tire width compared to the originals will work (use the 2 digit width value --- ww-622 for comparison). the nominal tire width isn't gospel, so leave some room for variations.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
04-25-13, 10:47 PM
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Hey- you have all the pieces. Put the tires on the wheels (assuming they're both 622) and see if they will fit the frame. You will spend a lot more time posting to the forum, then trying to decipher the measurements. Just do it!
04-26-13, 02:41 PM
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Hi,
The fitted tyres should be 25mm Kenda's. You'd need 6mm clearance
around the tyres to consider trying to fit them. Main sticking point
is likely the gap between the tyre and the chainstays, near the BB.
If the bikes not designed for mudguards/fenders doubt they will fit.
Still they might fit the front only and put a slicker thinner tyre on
the back and then run the front at lower pressure than the rear.
Gives you more front suspension and very good front grip.
The rear with more weight is set up for good rolling with less
grip. Sliding the rear is usually not much of problem, front it is.
rgds, sreten.
The fitted tyres should be 25mm Kenda's. You'd need 6mm clearance
around the tyres to consider trying to fit them. Main sticking point
is likely the gap between the tyre and the chainstays, near the BB.
If the bikes not designed for mudguards/fenders doubt they will fit.
Still they might fit the front only and put a slicker thinner tyre on
the back and then run the front at lower pressure than the rear.
Gives you more front suspension and very good front grip.
The rear with more weight is set up for good rolling with less
grip. Sliding the rear is usually not much of problem, front it is.
rgds, sreten.
Last edited by sreten; 04-26-13 at 02:49 PM.
04-27-13, 03:37 AM
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I think there are several Fuji 3.0s : Roubaix, Newest, Nevada, Absolute, Cross, etc...
