SOHC.co.uk Forums > CB750
imperial tyre sizes
JamesH:
Pretty sure the factory fitment on all 69-76 K models was 3.25*19 & 4.00*18?
Bryanj:
You are right according to the parts book 750 was 3.25 front and 4.00 rear the 500 was 3.25 bfront and 3.50 rear. The Guiness must have attacked the grey cells again, i always thought the 750 was bigger on both but perhaps we just fitted bigger!!
JamesH:
--- Quote from: Bryanj on March 11, 2015, 03:16:42 PM ---You are right according to the parts book 750 was 3.25 front and 4.00 rear the 500 was 3.25 bfront and 3.50 rear. The Guiness must have attacked the grey cells again, i always thought the 750 was bigger on both but perhaps we just fitted bigger!!
--- End quote ---
:-) I've had a couple of bikes arrive from the us with 3.50 on the front & 4.25 on the rear and they handled like sh*te - in my opinion the factory spec sizes are spot on.
AshimotoK0:
--- Quote from: Oddjob on March 11, 2015, 01:20:38 PM ---Rims are stamped with width so should be easy for the 750 owners to check. It may be that they stayed unchanged until the F1/F2 when the Comstars were fitted, those were certainly wider than the spoked versions.
Considering how anal :) the K0 owners are about DID rims I'm surprised one of them hasn't been on to tell us the exact rim size.
--- End quote ---
original rear K0 rim D.I.D. 2.15 X 18 (JUST GOT MY FINGER OUT :) )
Trigger:
--- Quote from: Jamesh_sussex on March 11, 2015, 03:28:19 PM ---
--- Quote from: Bryanj on March 11, 2015, 03:16:42 PM ---You are right according to the parts book 750 was 3.25 front and 4.00 rear the 500 was 3.25 bfront and 3.50 rear. The Guiness must have attacked the grey cells again, i always thought the 750 was bigger on both but perhaps we just fitted bigger!!
--- End quote ---
:-) I've had a couple of bikes arrive from the us with 3.50 on the front & 4.25 on the rear and they handled like sh*te - in my opinion the factory spec sizes are spot on.
--- End quote ---
+1 on that James. Lots of people think that putting wider tyres on will improve the handling but, it does not
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