Automobile Tire Pressure on Sypder

[Sonrisa]

Hey Guys and Gals. Those of you that have mounted an auto tire on the rear, what pressure are you using. Typically an auto tire will use higher pressure than what BRP recommends. I just installed a Sumo 225/50HR15 and put 35psi in the tire. Is this too high? Should I lower it to BRP specs? Thanks for your help.opcorn:

 

[Bob Denman]

Just my uneducated opinion; I'd look at using the tire pressures that I would run in the Kendas that come stock...
(In my case: 18/28psi)

 

[boborgera]

Hey Guys and Gals. Those of you that have mounted an auto tire on the rear, what pressure are you using. Typically an auto tire will use higher pressure than what BRP recommends. I just installed a Sumo 225/50HR15 and put 35psi in the tire. Is this too high? Should I lower it to BRP specs? Thanks for your help.opcorn:

Start at 35 then see how that works for you ,You can always go down a few pounds at a time, Remember always use the same gauge, most gages read different from each other + -.

 

[NorthStar]

I run my rear tire pressure on my Toyo at 30 psi.

 

[pierrelogic]

I use Kumho Ecsta AST on rear and after miles of experimentation I settled right at 45 psi. Even wear on edge and center.

 

[tofriendscreek]

Likewise, I'm not the expert. I have the stock Kenda on the rear but have General car tires on the front. I run 27 pounds in them. 3K on them and no issues with handling (except it's TONS better than the Kenda's were) and the tire wear so far is even,

Both the tire guy and dealer tech said run close to the recommended pressure.


Sent from my iPhone using Tapatalk

 

[WaltH]

I have been running automobile tires on the rear for the past three years and on the front for over two years, with no problems. I run 35 psi on all three tires.

 

[StriperKing]

I have the Maxxis rear tire and run 35. Feels good at that.
MA-Z4S
MAXXIS TIRES - MA-Z4S
225/50R15

 

[Trickie Dick]

I use Kumho Ecsta AST on rear and after miles of experimentation I settled right at 45 psi. Even wear on edge and center.

I have the same tire and I am running 32.:dontknow: How did you settle on 45. I really don't know exactly how I settled on 32. I read some posts as I recall. Anyway, I would appreciate any insight you can provide.

 

[pierrelogic]

I have the same tire and I am running 32.:dontknow: How did you settle on 45. I really don't know exactly how I settled on 32. I read some posts as I recall. A nyway, I would appreciate any insight you can provide.

Good question and thanks for asking.

Tire is rated with max PSI at 51 (cold temp) so that's where I put it initially. Was obvious the sides were wearing faster and it felt "bouncy" so I dropped it way down to 35. Then the centrifugal force at speed started wearing on the center. Up to 40 and still needed tweaked a little. Put to 45 and it showed even wear. IMHO, somewhere between 40-45 psi seems to be the sweet spot.

Wished I'd known this early on...might have been able to put more miles on it. Only got about 11,000 out of the first one. I just put a brand new one on 2 days ago and put it right on 45 psi. So far..even wear from jump street.

I ride the Spyder every day so subtle changes in PSI were clearly obvious to me. :dontknow:

 

[bikeguy]

I'm running a Kumho Ecsta at 32 PSI. I ran 26 - 28 PSI on the OEM tire. I set the Kumho at 32 PSI when I put it on and haven't changed it. It feels good, handles good, rides good, and seems to be wearing evenly. It doesn't have quite as much traction as the OEM tire but it's not slippery enough to be a problem.

Cotton

 

[Trickie Dick]

Good question and thanks for asking.

Tire is rated with max PSI at 51 (cold temp) so that's where I put it initially. Was obvious the sides were wearing faster and it felt "bouncy" so I dropped it way down to 35. Then the centrifugal force at speed started wearing on the center. Up to 40 and still needed tweaked a little. Put to 45 and it showed even wear. IMHO, somewhere between 40-45 psi seems to be the sweet spot.

Wished I'd known this early on...might have been able to put more miles on it. Only got about 11,000 out of the first one. I just put a brand new one on 2 days ago and put it right on 45 psi. So far..even wear from jump street.

I ride the Spyder every day so subtle changes in PSI were clearly obvious to me. :dontknow:

I'm running a Kumho Ecsta at 32 PSI. I ran 26 - 28 PSI on the OEM tire. I set the Kumho at 32 PSI when I put it on and haven't changed it. It feels good, handles good, rides good, and seems to be wearing evenly. It doesn't have quite as much traction as the OEM tire but it's not slippery enough to be a problem.

Cotton

OK guys, thanks to both of you but now I am confused. One at 32 and one at 45.:dontknow: I am a pretty big buy-265 so does that help? Maybe I should go half way between. :roflblack:

 

[Sonrisa]

As usual we have many different opinions on tire pressure:dontknow:. It seems we all have different ryding styles and performance requirements. I think I will leave mine at 35psi and "see" how things go. It will be awhile before I know how the wear is doing, but the comfort of the current psi seems to be okay. Thanks for all of the comments. That's why this sight is so good.:clap::clap::clap:
George(Sonrisa)

 

[docdoru]

40 for Michelin Pilot MX 225/55/15.

 

[pierrelogic]

OK guys, thanks to both of you but now I am confused. One at 32 and one at 45.:dontknow: I am a pretty big buy-265 so does that help? Maybe I should go half way between. :roflblack:

I'm in the 235-245 lbs range depending on the weather. Since these are not OEM tires therfore nothing official available the thing to do ask others running the same tire and then just do you're own thing.

A tire with a max (cold) pressure rating of 51 psi running at low 30's psi to me seems a little curious. Spyder isn't as heavy as a car but I'd never run tires on a car that far under the max psi. :lecturef_smilie: Unless I was in a jeep or hummer climbing rocks or something. But like most times when I offer my opinion here it is just that...and opinions are plentiful. I just know what works for me after miles of tweaking n testing and watching the tread wear like a hawk eyeballing a lemming.

Bottom line...do what you think is best.

 

[chris56]

I use a FULDA EXTREMO (lot of rain here) - my tire-specialist filled in 30Psi/2 bars .. he said ..have a look after some 100eds of miles how the wearing lookes like .. than we can change .. lookes OK in the moment
(45psi seemes too much for me)

 

[bikeguy]

OK guys, thanks to both of you but now I am confused. One at 32 and one at 45.:dontknow: I am a pretty big buy-265 so does that help? Maybe I should go half way between. :roflblack:

I'm as confused as you are. It probably has to do with different riding styles, different roads, different ideas of what feels good or bad, and, maybe, some hocus-pocus. Who knows? I weigh about 150 but I ride two-up almost all the time and, together, we're about 300 pounds.

At 32 PSI, I can break the rear loose fairly easily if I get on it hard out of slow speed corners in 1st and 2nd gear. I would think that higher pressure would make that worse and lower pressure would make the tire bite more but might contribute to more tire wear. 32 just seems to work well for me so I haven't changed and I'm happy with both wear and handling characteristics.

Cotton