Available tires

Matchless said:
I would be interested to hear how you get on with the Michelins. I fitted a pair to my 920 a few years ago, 3.25x19 & 4.00x18, & the bike was too scary to ride at over 75/80 mph. It would get into a weave which I couldn't sort out with various pressure changes. I fitted a pair of Roadriders in the same sizes & normality returned.
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Just mounted them, which i have to say was a better tire mounting experience than the Avons. The Avons tend to stick when you mount them and do not seat easily and can take a few efforts and a bit of soap to get the seated properly, this was the case with my Norton, my Honda, and my two BSAs. The Michelin's fit into place first time and seems to be holding fine. I have not put the bike on the road just yet, but I can update when I do.
 
possm said:
A 360x19 is 3.42", when I worked for the NZ Dunlop distributor we never said the 410 was equivalent to a 400 because it wasn't, add to this our TT100's are made in Asia and about 9-10 years ago the Japanese DOT forced Dunlop to reduce the size of the 410 series as they deemed them over size!
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Well I just measured the 410 on the rear OE rim with a vernier caliper, at the widest point, and found the tire to be 4-1/16" or 4.0625" so I guess you are correct. I should not have assumed it is 4" wide because it is actually 4.0625". That is more than half of a tenth of an inch!
 
I see that Andover has the Roadriders in stock. @ZFD are you going to run out at some point? Or will they still be made in a different Avon factory?
 
If you know of any available 3.50 X18 and 4.00 X 18 tyres in modern compounds, would you please post a link for the suppliers. For classic bikes, they do not have to be race tyres.
 
acotrel said:
If you know of any available 3.50 X18 and 4.00 X 18 tyres in modern compounds, would you please post a link for the suppliers. For classic bikes, they do not have to be race tyres.
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Lots of a availability. Continental Classic Attack look good. Bridgestone, and I believe Metzeler, also do good offerings, as do some other firms.

Plus Andy Molnar has excellent stocks of Avons racing tyres on his TGA Racing website.

Frankly you probably have more choice than ever right now despite the Avon supply uncertainty.
 
Fast Eddie said:
Lots of a availability. Continental Classic Attack look good. Bridgestone, and I believe Metzeler, also do good offerings, as do some other firms.

Plus Andy Molnar has excellent stocks of Avons racing tyres on his TGA Racing website.

Frankly you probably have more choice than ever right now despite the Avon supply uncertainty.
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Are there any dedicated 19" REAR tires? That is, not re-purposed fronts with only 2/3 the tread depth a rear should have. (Besides the visually period lug tread tires)
 
concours said:
Are there any dedicated 19" REAR tires? That is, not re-purposed fronts with only 2/3 the tread depth a rear should have. (Besides the visually period lug tread tires)
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I don’t think so. But as I don’t have a 19” rear on anything I haven’t researched exhaustively…
 
concours said:
Are there any dedicated 19" REAR tires? That is, not re-purposed fronts with only 2/3 the tread depth a rear should have. (Besides the visually period lug tread tires)
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According to the listing from Fortnine , Avon Roadrider MKll is available in a dedicated front and rear 100/90 19 for $182 cdn. each . Apparently it is a tubeless tire which will make it a bit stiffer
 
Ron Hulton said:
According to the listing from Fortnine , Avon Roadrider MKll is available in a dedicated front and rear 100/90 19 for $182 cdn. each . Apparently it is a tubeless tire which will make it a bit stiffer
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It’s not a ‘dedicated’ rear, it’s a ‘universal’ intended for use on both front and rear.

Consequently, it has less tread depth than a tyre designed solely for use on the rear (ie a dedicated rear tyre).
 
I just received an 100/90 -19Avon tire for front or rear Mark II for $152.00 delivered. Didn’t know that a dedicated rear tire had more tread. Mine last about 3500 miles.That’s all I have ever used and like having both wheels 19” but I guess if I had to do it over I would look at an 18” rear wheel. Mike
 
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Less than a quarter of an inch of tread. Like Ying, 3-4,000 miles at best.

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Then, subtract the .062" of minimum legal tread depth (USA), that leaves us with only less than 3/16" of usable tread.

Available tires
 
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Fast Eddie said:
It’s not a ‘dedicated’ rear, it’s a ‘universal’ intended for use on both front and rear.

Consequently, it has less tread depth than a tyre designed solely for use on the rear (ie a dedicated rear tyre).
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Only going by what fortnine lists ... Front tire PN 718319 Rear tire PN 718333
 
Ron Hulton said:
Only going by what fortnine lists ... Front tire PN 718319 Rear tire PN 718333
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That number brings up a whole selection of rear tyres, so it’s not a part number for a specific tyre.

Avon only make one 100/90 19 Roadrider that I can see. It’s for front and rear use (F/R) and therefore has 5.6mm of tread depth versus 7.5mm on a dedicated rear tyre.

Heres a link to Avon: https://www.avontyres.com/en-gb/tyres/roadrider-mkii?cartype=motorcycle

This is the page (in case he link doesn’t work as intended):

IMG_3311.png
 
The only other option I have found looks like a decent one. The Dunlop K81 4.10 x19 fits our standard rims and is a universal, like the Avon. Unlike the Avon it has generous tread depth at 9/32" , which is about 7.1mm, similar to dedicated rear Avon 18".
When the current set of Roadriders wears out I'm going to give the k81s a try. Fortnine has them at a bit lower cost than the 100/90/19 Roadriders.

I like the Avons on the Norton in general but don't enjoy the need to change them and pay for them on quite such a regular basis!

Glen
 
worntorn said:
The only other option I have found looks like a decent one. The Dunlop K81 4.10 x19 fits our standard rims and is a universal, like the Avon. Unlike the Avon it has generous tread depth at 9/32" , which is about 7.1mm, similar to dedicated rear Avon 18".
When the current set of Roadriders wears out I'm going to give the k81s a try. Fortnine has them at a bit lower cost than the 100/90/19 Roadriders.

I like the Avons on the Norton in general but don't enjoy the need to change them and pay for them on quite such a regular basis!

Glen
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If you ride the Avons, the K81 is a bit of a downgrade. I think the K81 looks great, but it does not have the same ride quality of the Avon.
 
worntorn said:
The only other option I have found looks like a decent one. The Dunlop K81 4.10 x19 fits our standard rims and is a universal, like the Avon. Unlike the Avon it has generous tread depth at 9/32" , which is about 7.1mm, similar to dedicated rear Avon 18".
When the current set of Roadriders wears out I'm going to give the k81s a try. Fortnine has them at a bit lower cost than the 100/90/19 Roadriders.

I like the Avons on the Norton in general but don't enjoy the need to change them and pay for them on quite such a regular basis!

Glen
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I've run K81's off and on for many years but rain grooves are common on the freeways in California where I live and they track them to an extreme degree, worse than any other tire in my experience...bridge gratings too. Roadriders don't...that being said I have a K81 on the back since it fits the WM2 rim better and FWIW a 90/90-19 Harley/Dunlop tire on the front.
 
YING said:
I just received an 100/90 -19Avon tire for front or rear Mark II for $152.00 delivered. Didn’t know that a dedicated rear tire had more tread. Mine last about 3500 miles.That’s all I have ever used and like having both wheels 19” but I guess if I had to do it over I would look at an 18” rear wheel. Mike
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Where did you get them from?
 
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