Just looking for new tires and I noticed that in some places avon roadriders listed as 100/90V-19 and some 100/90B-19 is there a difference between the V and B designations - thanks
Speed and construction
Interspersed with these sizing numbers, you're likely to find other letters that'll appear as such: 160/70VR 16, 170/60R 16V, or in other combinations. These two extra letters indicate speed rating and tire construction.
Each letter in the speed rating notes the maximum speed a tire can sustain under its recommended load capacity. For instance, V is equivalent to a maximum speed of 149 mph. Because this rating system was created in Europe, the increments per letter are in 10 kilometers per hour.
Rating Speed
miles per hour Speed
kilometers per hour
Q 99 mph 160 km/h
S 112 mph 180 km/h
T 118 mph 190 km/h
U 124 mph 200 km/h
H 130 mph 210 km/h
V 149 mph 240 km/h
W 168 mph 270 km/h
Y 186 mph 300 km/h
Z Over 149 mph Over 240
km/h
The next letter, R, indicates the construction used within the tire's casing. R stands for radial construction and B means belted bias.
The Roadriders are great tires for the price.
maybe I am hijacking here but their website shows a Speedmaster MkII - retro tire? Wonder if you or anyone comtemplated those? I havent seen them mentioned in a thread anywhere
http://www.avon-tyres.co.uk/motorcycle/speedmaster-mkii
+1 on that
Just put a pair of these on this season and love their grip. Of course I was replacing the original tires and was never happy with them so take my opinion with a grain of salt until I put some real miles on the avons ...... if it ever stops raining in mid-state IL ...... I swear I think we've turned into a deciduous rain forest .... yeah .. wrap your brain around that one ...
I hate to be the voice of the opposition here but I am not completely thrilled with my roadriders. I have just made the switch recently from the Metz's and here is my .02 cents: I love the Avons for slower country/ B type of roads. I think they grip a lot better than what the Metz's did. With that said, I am not happy at higher speeds with this though...my set feels skittish when I break the 85 mph mark and this is where my Metz's felt a hell of a lot better. So I like them at slower speeds in the twisties but don't care for them that much when I do have to hit the highway. I don't feel like I have been ripped off but I will be trying a different brand when these wear out.