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Tyres?

I have a 650SS and a 350 Manx where I think it's a good idea to change their 20+ year old shoes. Both will be used mostly on tracks, the 650 will go a little on road too. Nowadays I,m not a very fast rider but is very happy when on closed circuits. My idea is that both bikes shall have similar behaviour. So what tyres do you recommend?

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Previously david_evans wrote:

Avon Roadrider should be good or Dunlop TT100 Anything has got to be better than 20 year old hoops

100/90x19 tt100 Gp compound are still available.

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Previously david_evans wrote:

Avon Roadrider should be good or Dunlop TT100 Anything has got to be better than 20 year old hoops

stick to Avon roadmaster ribbed on front and a Dunlop K70 on the back , roadrides are wider so they catch in the frame, if it 50 years old or older than say old school with your tyres , Yours anna j

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Welcome back Anna, you will have to let us know how Sweden went. (If you actually went)

Have to agree with David on this, the new Avon's are superb and all I buy now. The old ditch finders have had their day, unless it's originality you are looking for but the question was about riding.

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General advice does not always work. some race Nortons have WM1 rims, some road bikes have very tight clearances. Anything bigger than a 3.5 x 19 SM does not fit my 99. Check carefully.

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My Dominator currently has a 3.00 Avon Speedmaster on the front and a 3.50 Avon SM MkII on the back. Unfashionable I know but they are fine for 'enthusiastic' cornering, wet or dry as others who ride with me will know.

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Previously Gordon Johnston wrote:

My Dominator currently has a 3.00 Avon Speedmaster on the front and a 3.50 Avon SM MkII on the back. Unfashionable I know but they are fine for 'enthusiastic' cornering, wet or dry as others who ride with me will know.

Excellent! I have the same on my Dommie but won't be able to try them until next season.

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I had no problems with the Avon 100 X 90 19 inch rear, even with standard 99 slimline set up but I had to use a thin Commando stainless bridge to fit the 90X90 19 inch front tyre. Not expensive to do.

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If you have the Full rear chaincase there is very little spare room ,it is possible but you have to have the wheels pointing in different directions! I think thats how Norville did it on their restored DL.

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Previously david_evans wrote:

Come on Anna, that's dark ages technology, this is the 21st century. Catch in the frame? tosh.

well it maybe the dark ages to you but thats the best set up for Bracebridge street built Nortons and thats what I am riding ,but its up to other what that ride.there freedom of choce its the same with tyre too but some modern tyre will not fit right for the fame demention ,so now you been told do blame me, if your tyers get hot ,by rubbing on the frame or in the swing arm or forks there are plenty of Avon Ribbed and Dunlop K70 tyers out there to my mind the best comination , I ridden a lot of miles on this type of set up, and thats what I have on my two Norton's Happy riding guys Anna J

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Definately Avon Roadriders I now fit them to any classic bike from lightweight bikes up to a Laverda Jota and never had any problems, they work well on tracks as I can testify having taken a bike round mallory in the wet with them, find a way to make them work, also they are not a bad price.

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Are your Laverda wheels 18" Barry. My Rotary has Italian cast alloy wheels and I struggle to get the 100/90/18 to get up on the bead with roadriders. Needs about 100psi. surpriseNo problem on the steel rimmed Commando but I think Avon's sizes are a bit tight on that tyre.

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Previously neil_wyatt wrote:

Welcome back Anna, you will have to let us know how Sweden went. (If you actually went)

Have to agree with David on this, the new Avon's are superb and all I buy now. The old ditch finders have had their day, unless it's originality you are looking for but the question was about riding.

well I cannot tell you that as its not a Technical Question ! sorry

yours anna J

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If you have the clearance problem on the rear. Fit the 3.25 x 19" roadrider. It is universal front or rear and is only a tad narrower than the 100/90 x 19".

Paul

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Previously david_evans wrote:

Are your Laverda wheels 18" Barry. My Rotary has Italian cast alloy wheels and I struggle to get the 100/90/18 to get up on the bead with roadriders. Needs about 100psi. surpriseNo problem on the steel rimmed Commando but I think Avon's sizes are a bit tight on that tyre.

Hi David, yes the Laverda has 18" rims, and quite deep rims as well, for some reason Laverda didnt fit their tyres as tubeless so my Avons have got tubes but they do seem to go on ok. I always take mine down to the local shop, most modern tyres seem tight to me.

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Previously Barry Davie wrote:

Previously david_evans wrote:

Are your Laverda wheels 18" Barry. My Rotary has Italian cast alloy wheels and I struggle to get the 100/90/18 to get up on the bead with roadriders. Needs about 100psi. surpriseNo problem on the steel rimmed Commando but I think Avon's sizes are a bit tight on that tyre.

Hi David, yes the Laverda has 18" rims, and quite deep rims as well, for some reason Laverda didnt fit their tyres as tubeless so my Avons have got tubes but they do seem to go on ok. I always take mine down to the local shop, most modern tyres seem tight to me.

I had that problem with my Guzzi, couldn't get the tires up on the bead no matter what I tried. I thought it was because the previous owner had powder coated the rims, including the inside of the rim, I thought it was the powder coat that was responsible. Eventually we got it up by lubricating the bead with axel grease... very, very little of course. I eventually took the tires to a shop (after missing the rally of the year...) and they came up with that solution.

Bruce

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I bought a tub of tyre fitting soap as used at the tyre shops. A tub is quiet inexpensive and there is enought to last 5 lifetimes.

If I can't a tyre to seat propery I slather it in lube soap them put up gp 60 psi in the tyre.

That soap can also be carried in a 35mm film canister for roadside tyre repairs

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Thank you all for your valuable information. In the Dark Ages I raced a JAP and cafe raced a Dommi, so I think I'll stick to old style tyres. They worked well then and I believe I ride slower fifty years later. The only time I had problem with grip was when the oil tube to the rockers broke, giving quite interesting broadsiding on asphalt. My idea is to have:

Manx: AVON Roadrunner 90/90H19F2 and GP 3.50H19

650SS: AVON Roadrunner 90/90H18F2 and 100/90-18 R2

Any comments or objections?

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Previously peter_stowe wrote:

I bought a tub of tyre fitting soap as used at the tyre shops. A tub is quiet inexpensive and there is enought to last 5 lifetimes.

If I can't a tyre to seat propery I slather it in lube soap them put up gp 60 psi in the tyre.

That soap can also be carried in a 35mm film canister for roadside tyre repairs

I tried that too on the Guzzi, and still have the large tub. Axel grease worked. It flumoxed a lot of people...

Bruce

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Previously peter_stowe wrote:

I bought a tub of tyre fitting soap as used at the tyre shops. A tub is quiet inexpensive and there is enought to last 5 lifetimes.

If I can't a tyre to seat propery I slather it in lube soap them put up gp 60 psi in the tyre.

That soap can also be carried in a 35mm film canister for roadside tyre repairs

Where did you get if from Peter ?

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Now this thread has woken up:The 'new' type 90/90 front tyres are 3.75" wide but if you have the pre-1964 7" stanchion spacing then the width over the front mudguard is 4 + 1/8" so inside the bridge it ends up almost exactly the same (or maybe even narrower) than the tyre.I've been fettling my forks and guards to stop them touching the fork shrouds but now everything is straight I cannot get the wheel back in and now I need a 3.00 Speedmaster - annoying since by Roadrider front is only a year old and I hardly did any distance last year, so it's practically new.If you don't have the standard tinware the 90/90 will be OK. Otherwise it's too close with 7" forks.But is the ribbed Speedmaster OK with the Roadrider on the rear or is there some weird mismatch?
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Check out the Mitas tyres - they are excellent quality, grip really well and fit my '56 ES2 . Thoroughly recommend them.

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See my earlier post: Use a stainless bridge and the Avon 90/90 front tyre on a WM2 rim will go in. It is the thickness of the original bridge the problem. The stainless bridge is half the thickness.

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Previously tony_harris wrote:

Previously peter_stowe wrote:

I bought a tub of tyre fitting soap as used at the tyre shops. A tub is quiet inexpensive and there is enought to last 5 lifetimes.

If I can't a tyre to seat propery I slather it in lube soap them put up gp 60 psi in the tyre.

That soap can also be carried in a 35mm film canister for roadside tyre repairs

Where did you get if from Peter ?

Tony Harris.

I got it from M&P Direct of Swansea..But maybe a local bike shop or tyre depot could you some.

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This reminds me of when I first got my 99DL back together. I reasoned that as Norville had just restored Les's DL and were proudly showing it off ,they should be the ones to ask about tyres. I bought the recommended tyres and after some years decorating my wall I gave them away. Check it yourself!.

 


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