From what we see here it seems that Avon knew there would be a period of down time whilst transferring production, so they made and stored a lot tyres prior to the UK facility shutting down. This is seen in the manufacture dates on the tyres which seem to be older than what we are used to seeing. So far UK distributors have plenty of stock so they should be available for a while.
Avon Tires No Longer Available?
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Fast Eddie
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Yes, correct. I suspect that decent 19” rears are going to become a problem…
Fast Eddie
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Do you have any industry insights as to if / when they are going to produce Roadriders, and if so which ones ?
I currently run Avons on all my bikes except one, and have been using Roadriders ever since Super Venoms were discontinued, so I have a dog in this fight !
ilikevelos
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Around here the preference is bt46 bridgestones. some have run the front 100-19 on the rear. I really like the way commandos run with the 19 rear. Then again I prefer the 90 front to the 100.
Nothing of any value, it's all quiet.
March 2023: the plan was for Goodyear to continue manufacturing RR MK2 tyres (along with Dunlops), at their Montlucon factory, East of Limoges, in central France.
news.goodyear.eu
Has anyone spotted any more recent news?
Avon Tyres’ motorcycle brand accelerates into the future as part of Goodyear family
Avon Tyres, one of the motorcycle industry’s longest-established tire brands, will receive a fresh focus as part of the wider Goodyear group of brands. Having incorporated Avon into its family in 2022, Goodyear is looking ahead to the future with a reinvigorated approach to the Avon brand. Now...
Has anyone spotted any more recent news?
Yes, the above can be no longer true as Montlucon is owned by Dunlop and Goodyear have sold Dunlop to Sumitomo tyre in Jan this year, and this the problem - just where are Goodyear going to make the RR2? Montlucon was also going to modernised but not sure how that went / happened, maybe some French forum members know more. Personally, I would not want my tyres made in France as the quality of finish on the French TT100 compared to those made in Japan and the Far East is lacking. The other issue is that tyres made in the EU cannot be imported to the USA.March 2023: the plan was for Goodyear to continue manufacturing RR MK2 tyres (along with Dunlops), at their Montlucon factory, East of Limoges, in central France.
Avon Tyres’ motorcycle brand accelerates into the future as part of Goodyear family
Avon Tyres, one of the motorcycle industry’s longest-established tire brands, will receive a fresh focus as part of the wider Goodyear group of brands. Having incorporated Avon into its family in 2022, Goodyear is looking ahead to the future with a reinvigorated approach to the Avon brand. Now...
Has anyone spotted any more recent news?
SteveBorland
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He seems to be saying that friction is independent of the contact area, but wear is not. Hence no extra traction from wider tyres, but you will get better wear.
Fast Eddie
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He needs to pick that debate up with drag racers…
And perhaps with anyone who’s locked up their skinny bicycle wheels on dry tarmac before…
I fail to see how it’s possible to conclude how contact patch size is independent of friction. Unless he’s talking about friction in a different way to what most would deem as relevant when discussing tyres, which is grip when accelerating, cornering and braking ?
SteveBorland
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I've also been wondering about this, and it's something of a rabbit hole to go into. Tyres are very complex things and the basic friction law he uses is an approximation of static friction only. In his example of a brick, it will require a higher force to start sliding (static friction) than is required to maintain the motion (sliding friction). As soon as the tyre starts to slide, the friction coefficient drops sharply.
There is an interesting discussion on this at https://www.quora.com/Why-do-wider-...e-area-is-not-a-part-of-the-friction-equation , but I don't see any sources or reference material in the answers, so I don't think its a definitive reply.
Fast Eddie
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It’s beyond common sense to me.
Any surface that has friction sees an increase in friction with increased surface areas. How would a Norton clutch perform with only one clutch plate ?
Imagine dragging a small rubber matt across the road, then imagine dragging a much larger one, kinda obvious right ??
Richard Tool
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I often wonder about engineering/ physics theory such as this .
Way back in the dark ages ( 1971or so ) I had an industrial design course . One of the lessons involved aerodynamics and calculations proved that a bumblebee can’t fly …
o0norton0o
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Anyone who has ever driven on the sand knows that if you have traction problems you deflate the tires to increase the contact patch areas........... Wait for it........ to get better traction...
It's not egghead theorizing, it's a well know common practice with experimental proof...
It's not egghead theorizing, it's a well know common practice with experimental proof...
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Flatspot
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If you see my avatar, when I was racing ie sprinting or drag racing, if the grip was reduced on a slippery track then I’d progressively reduce the tyre pressure to increase the contact area. Doing top speed runs over the mile then I’d increase the pressure to reduce contact area, albeit there is a fine balance between reducing the contact area and suddenly not having grip.
