New inner tubes

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Jerry Doe

Jerry Doe

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Hello again,

I am going to buy new Avon AM26 Roadriders for my 750 (100x90x19 v57 front and back). What inner tubes do you recommend with that tire?

Cheers
Jerry
 

Michelin heavy duty inner tube

Hello, I am putting a new BT45 front tire on my MK3. I dont know much about inner tubes. I was planning on fitting this Michelin heavy duty one, Does anyone know if thats a bad idea to use this inner tube for some reason? My tire is 100/90- 19. I am concerned it might be too heavy duty
www.accessnorton.com www.accessnorton.com
 
another Michelin Airstops (with new Dunlop TT100's). for what they cost, don't forget the rim liners. I went with IRC - no particular reason....

not to go off-topic, but what are folks experience air pressure loss on your tubes/tires. just curious. I seem to be loosing about 2 pounds per month (average). normal, abnormal, ??? I check them every couple weeks, and usually add once a month.
 
I have been running am26 along with Michelin Airstop. I am happy to hear I have been running the best inner tubes. I would say 2lbs a month is about right for me also.

I can’t believe how hard it is to find 100/90/19 Am26 tires stateside. I was online for a few hours searching all the normal stores and everyone one is sold out. I finally found them at “American Moto Tire” and one is on back order. I suppose it must be related to covid. Glad I found them, really like that tire...
 
Is the AM26 the old Roadrider, you may get better luck looking for the Roadrider II. The Avon site does not give the AM code for the new Roadrider II.
 
I recently fitted a pair of Avon Roadriders to my Commando and ordered a new pair of Avon tubes to fit with them.
The supplier did not have the rear Avon tube so supplied the equivalent Michelin Airstop Butyl. As the rear Michelin inner
tube was noticeably lighter than the front Avon tube I investigated and got the supplier to replace the heavy Avon
front with a Michelin tube.

I weighed the returned front Avon tube as 1122g and the replacement front Michelin tube as 569g.

FWIW The Avon box stated they were natural rubber and the Michelin are butyl rubber. I have used Michelin tubes for
decades and not noticed they loose pressure more now than they used to as suggested by Fast Eddie. I probably check
tyre pressures more often these days than in the bad (?!) old days.

I'll leave it to the mathematicians to work out the effect of an extra 553g (1 lb 3 1/2 oz) whizzing around on a 19" wheel rim
and the effect on handling.
 
"I probably check tyre pressures more often these days than in the bad (?!) old days."

I'm kinda the opposite - I used to check tire pressures prior to every ride - back in the day, that was every day! Now, I check it based on the well-proven scientific principle of "every so often." ;)

Interestingly, my Commando (OEM wheels) Avon RR tires, generic tubes (don't recall the brand - nothing special), lose less air over time than some of our newer bikes with tubeless wheels/tires. The tire pressure on the Norton is more than 10PSI below the spec TP on the newer bikes, which may have something to do with the rate of loss.
 
'For this fitment we would also recommend the below cold/solo pressures
F – 29psi R – 32psi'

From Avon's technical helpline, regarding 4:10 RoadRUNNERS on a Mk3 Roadster....
 
I don't remember which tubes I bought several years ago ( maybe Bridgestone?), but I need to top up every two weeks. For once, I can't wait to wear out my tires, so I can replace the tubes!

I tried running the higher tire pressures recommended for modern tires ( 30/28) and found the ride too hard .... went back to the book 26/24. Besides better ride, they may wear faster!

Slick
 
maylar said:
What tyre pressures do you guys like? I'm using 32/30
Click to expand...
running 1 PSI above the factory recommendation, which, off the top of my head is 24F and 26R, so 25/27 cold. this is a bit lower than some of you folks. when I add a little air, i'm usually read around 23/25. is it better to pump the pressures up a bit and is there an advantage? handling and ride quality seem OK, but then again, I have nothing to compare it too. here in florida, road surface temps get a bit warm. BTW, I may have the factory recommended pressures bass-ackwards (i'm half asleep) - whatever it is, one pound above.

edit: don't know where I came up wit 24F/26R, but checking my service manual, under technical data it states 26 F/R, and under routine maintenance it states, one 168 lb. rider 22F/24R, two riders 24/28, and two riders w/ up 100 lbs of luggage, 28/32. all my riding is solo, and i'm coming in around 200 lbs.

are higher pressures recommended with modern tubes and tires?
 
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I am running BT45's, Bridgestone tubes, 28-30 psi, check the tire pressure at oil changes, so 3-4 times per season. Pressures never seem to move much. Bike handles and rides very well. On my second rear since June, got about 5500 miles out of the last one.

In engineering school, we were taught that tires will lose air pressure at a higher rate if left static. A tire that is worked will retain air better. Another reason to ride your Norton more often - LOL!!
 
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Jerry Doe said:
I have been running am26 along with Michelin Airstop. I am happy to hear I have been running the best inner tubes. I would say 2lbs a month is about right for me also.

I can’t believe how hard it is to find 100/90/19 Am26 tires stateside. I was online for a few hours searching all the normal stores and everyone one is sold out. I finally found them at “American Moto Tire” and one is on back order. I suppose it must be related to covid. Glad I found them, really like that tire...
Click to expand...
Jerry,
I get mine from J&P Cycle.They have them with good prices and usually get them 2-3 days.
 
joe czech said:
running 1 PSI above the factory recommendation, which, off the top of my head is 24F and 26R, so 25/27 cold. this is a bit lower than some of you folks. when I add a little air, i'm usually read around 23/25. is it better to pump the pressures up a bit and is there an advantage? handling and ride quality seem OK, but then again, I have nothing to compare it too. here in florida, road surface temps get a bit warm. BTW, I may have the factory recommended pressures bass-ackwards (i'm half asleep) - whatever it is, one pound above.

edit: don't know where I came up wit 24F/26R, but checking my service manual, under technical data it states 26 F/R, and under routine maintenance it states, one 168 lb. rider 22F/24R, two riders 24/28, and two riders w/ up 100 lbs of luggage, 28/32. all my riding is solo, and i'm coming in around 200 lbs.

are higher pressures recommended with modern tubes and tires?
Click to expand...

Yes, side wall construction is now weaker hence the higher pressures.
 
Jerry Doe said:
I have been running am26 along with Michelin Airstop. I am happy to hear I have been running the best inner tubes. I would say 2lbs a month is about right for me also.

I can’t believe how hard it is to find 100/90/19 Am26 tires stateside. I was online for a few hours searching all the normal stores and everyone one is sold out. I finally found them at “American Moto Tire” and one is on back order. I suppose it must be related to covid. Glad I found them, really like that tire...
Click to expand...

Jerry, I got a set of Battlax’s for my GL from them. The rear showed up as back ordered but came quickly with the front. I also think I saw the new AM26 MK2 on their site.
Pete
 
YING said:
Jerry,
I get mine from J&P Cycle.They have them with good prices and usually get them 2-3 days.
Click to expand...
Hello mate, yes J&P are normally my go to place for tires. Unfortunately they are sold out of Avon Roadrider 100/90/19. I looked many places and in the end found one at "MotoSport.com" and the other is backordered.
 
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