cupped tire


Information and questions on GL1200 Goldwings (1984-1987)
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skipseke
Posts: 7
Joined: Wed May 18, 2016 11:49 am
Location: connellsville pa
Motorcycle: 1984 Goldwing aspencade 2005 Honda shadow

cupped tire

Post by skipseke »



Hi everyone. I have a '84 gl 1500 aspencade .Great bike ,I like it alot. Can anyone tell me what would cause the front tire to cup? Thanks



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tfdeputydawg
Posts: 1121
Joined: Sun Nov 22, 2009 6:59 am
Location: Indianapolis, In.
Motorcycle: 06 Wing III/2010 Hannigan

Re: cupped tire

Post by tfdeputydawg »


skipseke
Posts: 7
Joined: Wed May 18, 2016 11:49 am
Location: connellsville pa
Motorcycle: 1984 Goldwing aspencade 2005 Honda shadow

Re: cupped tire

Post by skipseke »

thanks for the reply . Great read

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Corkster52
Posts: 644
Joined: Sun Jun 06, 2010 9:28 am
Location: Naperville, IL
Motorcycle: 1999 GL1500 Aspencade
1988 GL1500 (sold 4/17)

Re: cupped tire

Post by Corkster52 »

Cupping is typically due to under-inflation. It happened to me on my 1500

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Rednaxs60
Posts: 2363
Joined: Wed Nov 18, 2015 12:44 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1985 GL1200 LTD
1995 GL1500 SE CDN Edition
2012 Suzuki DL1000 VStrom
2008 GL1800 (sold)
Ontario 1985 GL1200 LTD (sold)

Re: cupped tire

Post by Rednaxs60 »

I also think that a weak suspension will also contribute to tire cupping, similar to a car. The suspension is the only aspect of the bike keeping the tire(s) firmly planted on the road. Just a thought.

Cheers
"When you write the story of your life, don't let anyone else hold the pen"

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geraldm
Posts: 231
Joined: Fri May 15, 2015 12:07 pm
Location: pumphandle Saskatchewan ,Canada
Motorcycle: 86 gl1200 Aspencade

Re: cupped tire

Post by geraldm »

Rednaxs60 wrote:
Wed Jul 26, 2017 9:32 am
I also think that a weak suspension will also contribute to tire cupping, similar to a car. The suspension is the only aspect of the bike keeping the tire(s) firmly planted on the road. Just a thought.

Cheers
oh yes I agree , but I think the most important thing all things considered is under inflation , had two tire the same , the first cupped lots , inflated to 32 pounds , the second one said on the tire 40 lbs so I put in 42 , and I wont say it has no cupping , because its getting wore down and you can see it just a bit , but a huge difference in handling also these bikes dont seem to respond to pudgy tires of any kind . front to rear wheel alignment can also be a pita for uneven tire wear .

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julimike54
Posts: 579
Joined: Sun Feb 01, 2015 12:21 pm
Location: Euless, Texas
Motorcycle: 1986 GL1200A original owner
2016 HD FLTRU

Re: cupped tire

Post by julimike54 »

Not sure what is called cupping, do you have a pic? I did have a front tire wear out in a few thousand miles from sliding the front end on lots of high speed corners. The trailing edge of a tread block was taller than the rest of the block. According to the Dunlop rep. at a rally, stated that the reason it happened was from the tire sliding, made sense as he explained. The weight of the machines and the cornering forces are what 'push' the tread block and the trailing edge tends to roll, leaving it taller than the rest of the block. I checked tire pressures every morning of the trip (36-38). As the rep. stated, you've been having fun! Didn't realize it was sliding, but I was having fun!


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