Tire tips from industry engineer / expert
Road Warrior
Joined: May 2007
Posts: 1,635
Likes: 58
From: Bishkek, Kyrgyzstan
[QUOTE=big cahuna;11310076]I'd like to see a properly mounted and inflated tire spin on a rim.[QUOTE]
Two problems with your logic.....
First, motorcycle rims ARE different than car rims, the beads seat differently so there is no way to PROPERLY seat a car tire on a motorcycle rim.
Second, most CT riders always talk about having to reduce air pressure for the best ride.
An underinflated tire is NEVER a good thing.
Two problems with your logic.....
First, motorcycle rims ARE different than car rims, the beads seat differently so there is no way to PROPERLY seat a car tire on a motorcycle rim.
Second, most CT riders always talk about having to reduce air pressure for the best ride.
An underinflated tire is NEVER a good thing.
Grand HDF Member
Joined: Mar 2007
Posts: 4,923
Likes: 266
From: Deep in the heart of New Jersey
Two problems I have with your logic is, 1, how does any tire bead hold air if it isn't PROPERLY seated ? 2, if a car tire can be run at 32 psi, what's the difference on a bike? if the bead couldn't seat at 32 psi,wouldn't the air would leak out. The tire doesn't run any hotter then on a car. And lastly do you or does anyone have any real proof that anyone wrecked their bike because they were running a car tire? I've asked this question before and so far nobody can prove it ever happened. Just alot of talk about what COULD happen.,,
Road Warrior
Joined: May 2007
Posts: 1,635
Likes: 58
From: Bishkek, Kyrgyzstan
Two problems I have with your logic is, 1, how does any tire bead hold air if it isn't PROPERLY seated ? 2, if a car tire can be run at 32 psi, what's the difference on a bike? if the bead couldn't seat at 32 psi,wouldn't the air would leak out. The tire doesn't run any hotter then on a car. And lastly do you or does anyone have any real proof that anyone wrecked their bike because they were running a car tire? I've asked this question before and so far nobody can prove it ever happened. Just alot of talk about what COULD happen.,,
Why do I read so much about having to put 80psi into a CT to make it "seat" on a motorcycle rim?
And you can talk to the end of time and you'll NEVER convince me that running an underinflated tire is good in ANY circumstance.
Seasoned HDF Member
Joined: Mar 2009
Posts: 24,746
Likes: 9,264
From: Snow Hill, NC
The guy is a smart fella but i don't buy the not mixing of the brands or type...that is PURE marketing talk to sell more of their own brand...Might make a differnce on a Sport bike at it's full potential but on a Harley Davidson i think it's a fairy tale. The other points ok, again he probably is a pretty smart fella but he is in the end a Salesperson for Metzeler/Pirelli...
Seasoned HDF Member
Joined: Mar 2009
Posts: 24,746
Likes: 9,264
From: Snow Hill, NC
You can fantisize all you want but facts are facts, motorcycle rims and cars rims seat differently. The beads on the tires are different.
Why do I read so much about having to put 80psi into a CT to make it "seat" on a motorcycle rim?
And you can talk to the end of time and you'll NEVER convince me that running an underinflated tire is good in ANY circumstance.
Why do I read so much about having to put 80psi into a CT to make it "seat" on a motorcycle rim?
And you can talk to the end of time and you'll NEVER convince me that running an underinflated tire is good in ANY circumstance.
Ultimate HDF Member
Joined: Jan 2009
Posts: 5,016
Likes: 277
From: East Tn Foot of The Dragon
First thing: Do NOT run car tires. Diameter is ever so slightly different, mounting different. 2 Technicians were almost killed testing them. The tires will spin on the rim under hard acceleration. . That video someone likes to post of the testing of the car tire under extreme loads? That video is only relevant if its mounted on a motorcycle rim.
First It's been proven by alot of motorcycle riders that car tires work perfectly fine on motorcycles. Your friend obviously wants to spread fear and doubt into anyone wanting better mileage out of their tires, because he works for a company that SELLS motorcycle tires and knows there a money maker. I'd like to see a properly mounted and inflated tire spin on a rim. Does your friend really think that a car tire can't handle the weight of a motorcycle? Or the power output? Does your friend sell bridges on the side?.,,
First It's been proven by alot of motorcycle riders that car tires work perfectly fine on motorcycles. Your friend obviously wants to spread fear and doubt into anyone wanting better mileage out of their tires, because he works for a company that SELLS motorcycle tires and knows there a money maker. I'd like to see a properly mounted and inflated tire spin on a rim. Does your friend really think that a car tire can't handle the weight of a motorcycle? Or the power output? Does your friend sell bridges on the side?.,,
Grand HDF Member
Joined: Mar 2007
Posts: 4,923
Likes: 266
From: Deep in the heart of New Jersey
You can fantisize all you want but facts are facts, motorcycle rims and cars rims seat differently. The beads on the tires are different.
Why do I read so much about having to put 80psi into a CT to make it "seat" on a motorcycle rim?
And you can talk to the end of time and you'll NEVER convince me that running an underinflated tire is good in ANY circumstance.
Why do I read so much about having to put 80psi into a CT to make it "seat" on a motorcycle rim?
And you can talk to the end of time and you'll NEVER convince me that running an underinflated tire is good in ANY circumstance.
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Road Warrior
Joined: Mar 2011
Posts: 1,456
Likes: 132
From: Deep South, Louisiana
Car weight vs. bike weight, Volume of air, Air Pressure and tire designed for intended purpose. I think the engineers have done all the thinking for me and I will take there recomendations. I once had a dealer replace my rear tire with one the same size but of a different brand when I caught a flat. He put on the only one he had since mine was out of stock but got me back on the road. Whell I had to force that bike to make a turn and it would pop back straight. It only wanted to go straight no curves.
I know your old ten speed bike that weight only a few pounds was designed to hold up only your *** with that little old tall skinny tire had high pressure and very little volume. I know a big old tractor tire that is over your head when you stand next to it has a lot of volume and is low pressure is designed to haul that big tractor and pull / carry heavy equipment from sun up to sun down every day. So I guess if I find one with the same rim diameter I sould use it because the rubber is thicker. On other ting that big mud grip tractor tire is also designed to grip on the side threads when it digs down in the dirt just like a motorcycle tire thread wraps up along the side to ride on when you are on a lean in a curve.
I know your old ten speed bike that weight only a few pounds was designed to hold up only your *** with that little old tall skinny tire had high pressure and very little volume. I know a big old tractor tire that is over your head when you stand next to it has a lot of volume and is low pressure is designed to haul that big tractor and pull / carry heavy equipment from sun up to sun down every day. So I guess if I find one with the same rim diameter I sould use it because the rubber is thicker. On other ting that big mud grip tractor tire is also designed to grip on the side threads when it digs down in the dirt just like a motorcycle tire thread wraps up along the side to ride on when you are on a lean in a curve.
