Tire Sizing Question

ScottB · 11-25-2012, 02:41 PM

I'm sure this is beat to death elsewhere, but my computer seems to be breaking the search function. Or perhaps it's MIA? Dunno.
Anyway - I have an old '71 Kawi F7 that I'm going to start work on soon. It's stock tire sizes are 3.0x19" front and 3.50x18" rear. I'm wondering what the metric more-or-less equivalent would be. If someone could point me in the right direction, I'd be grateful.

Cheers,
Scott

RodT · 11-27-2012, 08:20 PM

your going to have a problem with that front tire 300x19 they just don't have anything out there. I have an old Yamaha DT! that has a 300x19 on it and I found some Chen-shin tires but they quit making them last year. Good luck. Rod

ScottB · 11-27-2012, 08:44 PM

There has to be a reasonably similarly sized metric tire out there. It may be moot anyway - I picked up a TS185 front end for the improved brakes and the 21" front wheel.

buls4evr · 11-28-2012, 05:58 AM

A 110/90 X19 front. A 120/90 X18 on the rear should be very close. But it depends on the tread configuration on the tires, manufacturer and casing size. The numbers I gave you will certainly fit for a DOT legal DS tire or street oriented tire.

ScottB · 11-28-2012, 03:38 PM

Thank you sir.

warewolf · 11-30-2012, 03:17 AM

Many of the tyre manufacturers' web sites have conversion charts which may be helpful.

11-25-2012, 02:41 PM	#1
ScottB ^OP Spam Enthusiast Joined: Oct 2008 Location: The Great & Frozen North Oddometer: 49	Tire Sizing Question I'm sure this is beat to death elsewhere, but my computer seems to be breaking the search function. Or perhaps it's MIA? Dunno. Anyway - I have an old '71 Kawi F7 that I'm going to start work on soon. It's stock tire sizes are 3.0x19" front and 3.50x18" rear. I'm wondering what the metric more-or-less equivalent would be. If someone could point me in the right direction, I'd be grateful. Cheers, Scott __________________ 2007 Triumph Tiger 2007 Triumph Speed Triple 1975 Honda CB750 1971 Kawasaki F7 175

11-27-2012, 08:20 PM	#2
RodT Gnarly Adventurer Joined: Sep 2008 Location: Westwood, CA. Oddometer: 300	tires your going to have a problem with that front tire 300x19 they just don't have anything out there. I have an old Yamaha DT! that has a 300x19 on it and I found some Chen-shin tires but they quit making them last year. Good luck. Rod __________________ Any fool can criticize,condem and complain and most fools do. Ben Franklin

11-27-2012, 08:44 PM	#3
ScottB ^OP Spam Enthusiast Joined: Oct 2008 Location: The Great & Frozen North Oddometer: 49	There has to be a reasonably similarly sized metric tire out there. It may be moot anyway - I picked up a TS185 front end for the improved brakes and the 21" front wheel. __________________ 2007 Triumph Tiger 2007 Triumph Speed Triple 1975 Honda CB750 1971 Kawasaki F7 175

11-28-2012, 03:38 PM	#5
ScottB ^OP Spam Enthusiast Joined: Oct 2008 Location: The Great & Frozen North Oddometer: 49	Thank you sir. __________________ 2007 Triumph Tiger 2007 Triumph Speed Triple 1975 Honda CB750 1971 Kawasaki F7 175

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11-28-2012, 05:58 AM	#4
buls4evr No Marks.... Joined: Sep 2009 Location: Michissippi & Nuevo Mexico Oddometer: 1,650	A 110/90 X19 front. A 120/90 X18 on the rear should be very close. But it depends on the tread configuration on the tires, manufacturer and casing size. The numbers I gave you will certainly fit for a DOT legal DS tire or street oriented tire.