ponters

254 RWHP Lush Racing Engine
Joined
May 24, 2010
Messages
1,876
Location
Melbourne Australia
Ride
2010 Triumph Rocket Roadster
Okie Dookie, I'm starting this thread as every other thread I have read regarding tyre options either digresses or simply doesn't offer straight opinions on which of the two standard size tyres are preferred.

Please post your opinion as it all counts and everybody's personal experience is great knowledge.

REAR
Standard Roadster size is 240/50R16. My understanding the only 2 manufacturers able to supply this exact size is either AVON or METZLER.

Now, to clarify, I have been involved in high level motorsport for many years, (Cage Racing) and also have an interest in a Car Passenger tyre company in Australia. I often frequent product information release functions etc. I have also been an advanced driving instructor, motorsport tutor and conducted seminars and education on the physics of driving and relevance of tyres. Although not an industry expert in design or manufacture I certainly am well qualified to advise on car, 4WD and truck tyres.

I make no representation of having much knowledge on Motorcycle tyres however my findings are as below.

The Metzler does have a slightly softer compound rubber and the tyre design is mostly about ultimate performance (for this size) and really is the better handling tyre and performance slightly better in the wet (slippery surfaces include dampness etc). Millage is the only down side. Now ONE VERY IMPORTANT thing to remember, in hot conditions particularly high speed and or long distance at extreme or high temperatures, it is possible to feather, scrub on scallop a Metz within 1,000k's if you do not adjust your temperatures appropriately. every road surface, road temperature, ambient temperature and tyre temperature, including what you have used to inflate your tyre will impact on handling and durability.

In saying this, I NEVER USE COMPRESSED AIR to inflate any of my car tyres, race or road. Nitrogen is far superior. Benefits offer, greater stability in temperature, decreased permeation through rubber, no oxidisation in tyre, no internal moisture, better economy, infinitely more stable on a molecular level offering overall better handling and more stable ride. This said, 1 I do not know the suitability of running Nitrogen in a motorcycle tyre and 2 given the constant adjustments required the practicality would be prohibitive. I suggest when adjusting your pressure you visit a tyre shop where they bleed their compressed air vessels daily to ensure limited moisture enters your tyre. Although the moisture evaporates when you are at operating temperature it does create greater fluctuation in pressure than compressed air alone.

Now back to the tyres, the Metz will give you better handling and grip as long as you actively adjust your pressures and bleed the pressure down on longer rides in warmer weather. If you do this you milage will increase dramatically. Given the nature of the softer compound you will never manage to get the same milage as the Avon though.

The AVON is a more consistent tyre. Not as effected by tyre pressure (obviously you must always run proper inflation) in weather oscillation and reports indicate it may even give you a slightly more comfortable ride. Milage will most certainly be up if you could do an exact side by side comparison but this would be near impossible. Also the final 20% of tractable surface area in the Avon is designed with a higher degree of tapering which would suggest leaning would be a bit more of an effort. The Metz are a rounder tyre across the TSA (tractable surface area) and hence rolling onto its side would require less effort particularly through chicanes where you are leaning from side to side. This action would require more work with the Avon.

In Summary, if you are after the highest performance tyre of these 2 and really want to ride hard through the bends, the Metz will be hard to beat. This coupled with slight advantages in the wet make the Metz a winner. Conversely, if you are after millage and the majority of your riding is longer straights the Avon offers better performance and the only compromise is wet weather handling.

Personally, I think that either tyre is great in the dry and if you really were to push a 400+ KG (rider and wet weight) hard enough to warrant a concern with either tyre, I suggest you buy a sports bike and a pass to a closed circuit. I feel, that any advantage on a public road in the wet however small, is worth having to replace tyres more frequently. When you work out $ per kilometre the Avon will win by a bit but diligent monitoring of your pressures in the Metz will help.

Well, that said, Im off to buy a new Metz for my rear as 200+hp at my rear wheel needs as soft a compound to keep it for skating.

and......... before you reply about darkside...let me say, I'm happy for you if it works for you, your insurance covers you and your road authority permits the use of a non specified tyre and your riding conditions and uses all suit what you like. I myself think that a bike tyre is a good idea for a bike, as is a race slick for my F3 car and Rudders are for my plane. Any how, what Im saying here is please add or correct anything I have said if it applies to a Metz or Avon.

SAFE RIDING AND HAVE A BLAST!!!!!!!!;)
 
I agree with pretty much everything you've said. I've used both and found the Avon's handling and grip to be excellent, altho a little skittish in the wet (but probably no more so than the Metz). Got 50% more milage out of it over a couple of Metz. I've also commented that it seemed a bit flatter than the Metz. Of the two, I'd pick Avon every time for the way it handles in the dry and the mileage.

I've just fitted a Bridgestone 240/55R16 by the way and so far am loving it. The higher profile (as has been mentioned by others) all but corrects the speedo and seems to ride smoother with all that extra air/side wall. I also think it's a better 'shape' for the Rocket and has deeper tread in the middle than the sides. Handling is just as good as the others, altho I haven't had it on a wet surface yet.

I on my second Avon on the front and have no complaints at all.
 
I've had both Metzelers and Avon on my Classic...and much prefer the Avon. Smoother ride, better grip, better "feel". Will be switching front to Avon as soon as tread warrants replacement.
 
Nice Post!

Great rundown on the two from a technical perspective, thanks! My first rear Metz just gave up the ghost at 8500 miles. I don't consciously break it loose, but it does happen. :D After recovering from the shock of what my local Triumph dealership wanted to charge me to replace it ($450 for a Metz, $550 for an Avon), I bought an Avon online for $258 and found a local bike shop that will mount and balance it for $85. Looking forward to getting used to the Avon and will be happy to tack onto this post as soon as I have enough miles on the Avon to differentiate between it and the Metz.
 
I do not dwell in the intricacies of technical nature for tires i ride simply for the enjoyment of it , I rode with metzeler then with avon the avon gave me more satisfying feel and control than the metzeler front and back .when my butt tells me avon are feeling better that is as good as I want to go into the matter . I cannot imagine bothering with nitrogen and the rest of the deep narrow focus of tire temperature, checking air purge for moisture etc etc . I check pressure 34 and 42 psi then I hit the start button and ride period .
therefore Avon front and back is good for me and I stick to that.
 
3 sets of Metz & now on 1st set of Avons, I like the Avons in the dry, but I found the rear a bit skittish in the wet but this was me putting to much power on too quickly, had a very very wet ride 2 days ago & taking it steady had no problem at all. Looks like I'll be sticking with the Avons, but thanks for a very informative post.
 
avon safty warning

I JUST HAD MY R3 DYNO TUNED A FEW WEEKS AGO I HAVE METZLERS ON ANY ONE DYNO TUNE WITH AVONS /:eek:

Avon motorcycle tyres are only for use on vehicles for which motorcycle tyres were originally specified by the vehicle manufacturer, any other use may be dangerous.

Motorcycle tyres which have been subject to use on rolling roads must no longer be used for subsequent, normal service. Use of Avon motorcycle tyres on a rolling road (Dyno) will invalidate the tyre warranty. All tests on rolling roads must be carried out with test tyres, special tyres reserved for maintenance purposes, or tyres which are worn out or downgraded.
Safety | Avon Tyres
 
This is interesting. My Mezt rear is about past its sell by date at 5,000mls exactly. Was thinking of trying an Avon even though apart from the wear factor i've been happy with the Metz. HELLFIRE why "anything but a Metz" I'm open to suggestions as long as it is'nt darkside.
 
This is interesting. My Mezt rear is about past its sell by date at 5,000mls exactly. Was thinking of trying an Avon even though apart from the wear factor i've been happy with the Metz. HELLFIRE why "anything but a Metz" I'm open to suggestions as long as it is'nt darkside.

Your three options are above. That's it. If you ride a lot, try all three; you'll be changing them pretty frequently.
 
Back
Top