10-09-2017, 08:56 PM
Hi Erich,
The 3.25 x 17" Avon SM give the same tread contact but a lower ratio.
The tyre has quite a rounded profile until they have worn down a bit.
You should be able to check the overall diameter on line.
The 3.25 x 19" Dunlop has a lower profile thus lower gearing than the 3.50 x 19"
Have a look at motorbike tyre suppliers, The smaller section tyres also save weight.
Cheers Richard
The 3.25 x 17" Avon SM give the same tread contact but a lower ratio.
The tyre has quite a rounded profile until they have worn down a bit.
You should be able to check the overall diameter on line.
The 3.25 x 19" Dunlop has a lower profile thus lower gearing than the 3.50 x 19"
Have a look at motorbike tyre suppliers, The smaller section tyres also save weight.
Cheers Richard