SOHC.co.uk Forums > CB750
imperial tyre sizes
Graeme77:
I need to get new tyres for my f1. Its pretending to be older than it is, ace bars, k rear mudguard, single seat etc so I was looking at maybe k81 dunlops for it but the sizes are confusing my.
Would 3.60x19 and 4.25/85x18 be right?
It currently has 100/80 and 120/80 on it so something this sort of size would be nice.
Ive looked at size conversions but why do these have a decimal point and is 4.21/85 a tyre wall ratio like metric tyres?
Im finding it hard to choose tyres but I think it will either be these k81s or ill have to go more modern with metzler/roadrider/bt45 or suchlike.
Johnwebley:
tyre sizes can be confusing,
your front,3.60 - ? X 19,is normally a 3".60 inch wide and most cases a 90% profile ratio,X 19" diameter,
try to figure,also check the overall diameter,http://www.avon-tyres.co.uk/motorcycle/roadrider
these are my personal favorite tyres,they grip very well,and help the bike to feel light and small,
what size is in the hand book?
Trigger:
If you are looking for old style, Avon AM6 and AM7's are available at a good price. If you are on about F1 CB750 i have just put 3.25-19 on the front and 4.00-18 rear from Mytyres.
Graeme77:
Yes, its a 750. Book is in the loft so just looked sizes up. As you say, 3.25 19 and 4.00 19.
Do they not look a little small?
I was going to get avons but ive read alot of bad opinions on the safety milage rear. Ive read good stuff too though.
I have a gsxr if I want all out handling, but I do like a nice sweeping corner :)
I found a thread on here recomending 4.10 19 and 4.25/85 18 if getting the k81's.
Graeme77:
Does a k70 rear work ok with a speedmaster front?
Navigation
[0] Message Index
[#] Next page
Go to full version