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sidewalls would be pinched in on a smaller rim;)

You sure the tire would even fit between the fork tubes? My nephew's 79 KZ650SR has a 110/90/19 on the front, and it's a real tight fit.

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I run 100/90/19 tires on 1.85 rims, and I suspect that anyone else with that size rim does the same. My nephew's 79 650SR has a 110/90/19 on a 2.15 rim.

The Dunlop GT501 100/90/19 calls for a 2.15 rim, but I had it on a 1.85.

The Bridgestone BT45 100/90/19 says 2.15 to 2.75, but I would run it on a 1.85 rim and not worry about it.

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Here's what Dunlop recommends for your 1.85 rim


www.dunlopmotorcycle.com/fitmentguide.asp


Kawasaki | Model: KZ 650 H (81-83) - CSR
Front Rim Size: 1.85x19 | Rear Rim Size: 3.00x16

Recommended Front Tire:
Tire : GT501 | Size : 100/90-19 | PSI/Loaded : 32
Click for Info


Recommended Rear Tire:
Tire : GT501 | Size : 130/90B16 | PSI Rear/Loaded : 36
Click for Info


Alternative Front Tire:
Tire : Elite 3 | Size : MM90-19 | PSI/Loaded : 32
Click for Info


Alternative Rear Tire:
Tire : Elite 3 | Size : MT90B16 | PSI Rear/Loaded : 36
Click for Info



** - Available only from O.E.M
TT - Tube type tire only

Post edited by: Patton, at: 2007/01/28 18:16

H1Vindicator wrote:

My rims are labeled as M.T. 1.85 x 19. What does M.T. 1.85 mean? Using a tape measure the rims appear to be between 2.50 & 2.75 inches wide - or about 2 5/8".

Also, when a tire is listed as JMK.3.25/3.50 x 19, what exactly is meant by 3.25/3.50? I know it's 3.25" & 3.50 " and refers to the tire width, but what would be the actual width of the tire?

I guess a link to a tire info page would be handy. JMK.

Rim width is measured inside bead to bead, not outside across the rim.

Here is a link to the tire marking explanation at Metzeler

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Lots of information about tire sizes on these two sites.

Hope they may be helpful.


www.steelthundercc.com/tiresizes.html

www.webbikeworld.com/Motorcycle-tires/tire-data.htm