[Guest]

What is the difference between "R", "HR", "VR". Lops and Stones are "R", the Avons are "VR" and Metz are "HR". Do these letters really make a difference. Looking for a good traction tire in most conditions and in the rain. Don't scrape pegs, well not toooo often :roll:

Thanks.

 

[Duane in Bakersfield]

The letter designations on the tire are speed ratings. If memory serves correctly, the "R" is rated in the mid to upper 90's, the "HR" in the low 100's, and the "VR" around 125. The highest street rating that I'm aware of is a "ZR", which is way up there. Again, if memory serves, I am thinking that the higher speed rated tires have higher load ratings, also, but I'm not sure on that. I hope that is as clear as mud. LOL

 

[markie]

N 87 mph/140 km/h
P 93 mph/150 km/h
Q 99 mph/160 km/h
R 106 mph/170 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

NHTSA UTQG Speed Ratings

markie

 

[Janne Sweden]

This is my profession!

If there is only an "R", you find the speedrating letter in a place nearby together with the loadrating index. For the wing front: 63H and for the rear: 74H.

63=600lb/272kg
74=827lb/375kg

If load or speed index differs from abbow it´s not designed for the wing.

 

[MotorcycleBoy]

What if the load or speed rating exceeds those for the wing?

 

[Janne Sweden]

MotorcycleBoy

In teory ofcourse it´s better. But after waiting two years on Avon to com up with a tire developed for the GL1800 it says to me to not pick any tyre just because it has the same size.
If you go mostly stright on good roads I can imagine that tires for the 1500 could be an alternative. Tom Finch wrote some of that resently.