Help on tire pressure
#11
12-28-2009, 02:42 AM
#12
12-28-2009, 04:28 AM
Road Warrior
#13
12-28-2009, 04:32 AM
Speakin of tire pressure. Harley got me to replace the air with 100% nitrogen. Ain't the air we breath 75% oxygen? (accept in L.A. where it's 90 % smog). Harley said race cars and bikes have used 100% nitrogen in there tires for years. Money making scam or legitimate service?
Max tire pressure is for when you have a max load. With exception of Metzeler you should go by the book.
#14
12-28-2009, 04:32 AM
Road Warrior
Speakin of tire pressure. Harley got me to replace the air with 100% nitrogen. Ain't the air we breath 75% oxygen? (accept in L.A. where it's 90 % smog). Harley said race cars and bikes have used 100% nitrogen in there tires for years. Money making scam or legitimate service?
when you buy car and truck tires from costco that is what they put in no choice good deal if you ask me.
#15
12-28-2009, 04:34 AM
Speakin of tire pressure. Harley got me to replace the air with 100% nitrogen. Ain't the air we breath 75% oxygen? (accept in L.A. where it's 90 % smog). Harley said race cars and bikes have used 100% nitrogen in there tires for years. Money making scam or legitimate service?
You may get .01 mpg better gas mileage. That could make a difference in Nascar but it isn't enough for me to spend money on.
Thanks,
Douglas
#16
12-28-2009, 04:39 AM
Road Warrior
I run what the owner's manual calls for. The tire pressure stamped on the side of a tire is the maximum pressure that you should ever have in that tire for safety reasons. I'm sure there is some built in fudge there.
The only professional vehicles that run that max pressure are OTR 18 wheelers and some buses, as well as motorhome bus conversions like Prevost. And you have probably noticed OTR truck rubber on the road. The truckers do it to carry a maximum pay load. I see no eason to ever run the max pressure on a motorcycle unless you are doing a run for maximum mph.
My 07 RK owner's manual and service manual call for 36 psi front and 40 psi rear for two up riding and that is what I always run even though I seldom ride two up.
Check your manual. I think 25 psi is dangerously low in your front.
The only professional vehicles that run that max pressure are OTR 18 wheelers and some buses, as well as motorhome bus conversions like Prevost. And you have probably noticed OTR truck rubber on the road. The truckers do it to carry a maximum pay load. I see no eason to ever run the max pressure on a motorcycle unless you are doing a run for maximum mph.
My 07 RK owner's manual and service manual call for 36 psi front and 40 psi rear for two up riding and that is what I always run even though I seldom ride two up.
Check your manual. I think 25 psi is dangerously low in your front.
The number on the tire itself is put there as a not to exceed pressure for the tire by the tire manufacturer to prevent damage and overinflation of the tire. That doesn't mean that you are supposed to run that much. The vehicle manufacturer sets the recommended tire pressure to keep in the tire based on their testing to provide the best possible combination of stability, handling, ride, safety, and wear. Go by your vehicle's owner manual, not the tire that can be used on multiple vehicles. This applies to everything on the road, not just bikes.
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sbarron (03-23-2018)
#17
12-28-2009, 07:12 AM
Low tire pressure can cause a bike to not handle well just when you need it. The recommended tire pressure is there for a reason. Higher tire pressure may not be as comfortable but should in most cases, get higher mileage.
#18
12-28-2009, 07:25 AM
#19
12-28-2009, 07:32 AM
