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Tire Brand

Replacing the tires on my 72 75/5. Are the original Metzlers still the best choice?

The originals would be/have been the Continental RB2 front and K112 rear; tires designed in the early 1960s using 1950s tire technology. Last I observed a couple of years ago they were still available but the logic of why escaped me. They do look very good on pristine low mileage museum displays though.
 
The RB2 squirms on freeway grooves; I liked the K111 better than the K112.
Surely, better tires are available these days...
 
I've had just about them all. Started with Continentals and have had Dunlops, Avons, Metzlers...running Michelin Pilot Activs front and rear. There's been discussion of how difficult the Activs are to mount...I had someone else do it so I don't know.

Probably would be good to know what kind of riding the OP does and what he's looking for. My suggestion would be to find a tire that offers inch-size which will result in the best geometry for the bike not to mention that the relationship between the tires and the sidestand will be correct. Metric tires resulted in my bike squatting about 0.5 inches, making the sidestand and centerstand harder to work right.

Snowbum has a pretty good rundown on tires here:

http://bmwmotorcycletech.info/section5.htm
 
Michelin Pilot Activs (using original proper period size and tubes) I love compared to the Dunlops that were on my '78 R100. Once both were installed I get ZERO squirm on rain grooves on the highway and have seen virtually no wear on about 12,000 miles on front, and about 5,000 or rear. And, seem to really grip well on the highway and on curvy back roads!
 
i put on the Pilot Activ on the rear Snowflake and yes, it was an SOB to get the bead to seat. did rim polishing, real tire lube, high volume air, warmth... bead just crept into place, never popped but the bead indicator is uniform all the way around and i'm confident it's fine. it was the least satisfying tire to mount of all the ones our bike club has mounted. supposed to be a good tire, tho.

-dan
 
Using Michelin Pilot Activs on my 77 R100S - they handle and ride great. Too early to tell about wear - but it is a non issue on a play bike.
 
tire brand

Using Michelin Pilot Activs on my 77 R100S - they handle and ride great. Too early to tell about wear - but it is a non issue on a play bike.

Which model Pilot Activs? Are you using tubes in them? Did you mount them yourself ( how difficult? ) or have a shop do them? Does your 77 100S still have stock suspension?

Friedle
77 100S, amongst others
 
I've got those Michelin Pilot Activs on my 1978 R/80. Both are in the inch sizes.
Very nice tire, one of my favorites.
My tire man had no trouble mounting them with tubes but he did mention to me it I got a flat out on the road, he thought I would have a tough to impossible time prying them off by hand to perform a flat repair FWIW; very stiff carcass overall
Another great set of tires I recently had was the Conti Go.
The set I had were very soft and had a very short life, but they were sweet!
 
I mounted a set of the Activ's with tubes on the NoMar rig with their large spoonbars. They were not that hard, but I would not want to try with small tire irons on the side of the road in a hurry.

Nothing like a Goldwing or an LT rear:doh Those are the stiffest tires on the planet!
 
I've got those Michelin Pilot Activs on my 1978 R/80. Both are in the inch sizes.
Very nice tire, one of my favorites.
......
Another great set of tires I recently had was the Conti Go.
The set I had were very soft and had a very short life, but they were sweet!
I agree completely with Nick. I tried the ContiGo on two airheads; great tires but the shortest tire life I ever experienced. Been running Michelin Pilot Actives on both airheads now. Inch sized, great stick and very reasonable mileage.
 
No one has mentioned the new Conti Classic Attack radials, info here. I bought a set for my winter R75/7 rebuild but only rode them for about 20 miles before starting the bike disassembly. In that short time I liked what I felt... dead stable, no squirming whatsoever. Can't speak to longevity obviously. How can radials not be better in every way? The only downside I've noticed is that they are fairly heavy which technically increases gyroscopic force and dulls quick turn-in.
 
Those Conti Classic Attack radials look very interesting
I think I will buy a set for the next tire change
Thanks Cruzer for the heads up on the new stuff!
 
Since you asked about Metzlers, the original could have been a 3.25-19 Rille on front and a 4.00 C Block on the rear. That's what my 1972 R60/5 came shod with. I would have been glad to have the Continentals. They gave decent mileage and were really easy to install.

Woodgrain
 
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