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ok.. 2.75x18 and 2.75x18 are the factory sizes.. this would come out to 80/90 17 and 80/90 18 right?
I see (even on here) people finding nice street tires for 125's but cannot for the life of me find them in the above sizes. This leads me to believe that those more (there are lots of them) in the know can tell me what size will work and is available.
These look rad:
http://www.ridedirect.com/showProduct.php?id=291

but look like the closest would be 90/90 18 front and 100/90 17 rear... would this still work especially if youre not running fenders??
 

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quote:
ok.. 2.75x18 and 2.75x18 are the factory sizes.. this would come out to 80/90 17 and 80/90 18 right?
A metric size 80/90 tire is 2.75 inches wide (give or take, tires are not really exact). So a 80/90 tire would (more or less) match your stock 2.75" tire width.

quote: . . . look like the closest would be 90/90 18 front and 100/90 17 rear...
You're saying you have 18" diameter stock rims, but you are looking for a 17" tire for the rear? Are you changing the rear rim to 17"?
 

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Hi, Im using the IRC NR21 300x18(F) and 300x17(R)and they fit my rim fine without distorting the profile. They are not directional either. I like the way they look on my bike.


Laurence

'71 Honda CB500/4
'81 Honda CB125S
'01 Suzuki SV650
 

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on my cb125S im going to be running a 2.75 or 2.50 18 frtn and a 90/90 18 rear.
still dont know for sure on witch tires though. as i just got the 18" rear off a 84 cb125s. and will be lacing it to my 74 rear hub.
 
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