checked tire pressure today--spared my life?
checked tire pressure today--spared my life?
Before I rode to work this morning, I decided to check tire pressures just for kicks. They both looked fully inflated, but I read somewhere that checking often is a good habit. The rear tire is supposed to have a pressure of 36psi. It was 10psi. I thouht the gauge was broken, so I used the backup pen-style gauge. It too showed 10psi. But the tire looked completely normal. It doesn't flex like flat car tires. I guess it's because the bike is so light. Lesson learned. From now on I will always check bike tire pressures before a ride because visual inspection just doesn't work.
My rusty spidey sense saved me today...
My rusty spidey sense saved me today...
- Ninja Geoff
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youch, been there, done that. except i started to ride before i noticed it.
My roomate went for a ride once, came back and told me he almost went off the road on the turn because the bike didn't want to lean (CBR929RR). We checked the tire preassure, it was off by 3 psi.

My roomate went for a ride once, came back and told me he almost went off the road on the turn because the bike didn't want to lean (CBR929RR). We checked the tire preassure, it was off by 3 psi.
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- jonnythan
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Re: checked tire pressure today--spared my life?
Bias-ply tire, probably?ill'n wrote:Before I rode to work this morning, I decided to check tire pressures just for kicks. They both looked fully inflated, but I read somewhere that checking often is a good habit. The rear tire is supposed to have a pressure of 36psi. It was 10psi. I thouht the gauge was broken, so I used the backup pen-style gauge. It too showed 10psi. But the tire looked completely normal. It doesn't flex like flat car tires. I guess it's because the bike is so light. Lesson learned. From now on I will always check bike tire pressures before a ride because visual inspection just doesn't work.
My rusty spidey sense saved me today...
Check air frequently. Glad you caught it

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- matthew5656
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Both front and rear tires are only short one psi on my honda, but I've already felt a noticeable difference. I never assumed such a minor offset would really affect the handling to such extent. But I plan on purchasing one of those digital pressure gauges to really obtain an accurate reading. Good call on yours though, 10psi es no bueno.
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You felt a noticeable difference in a single psi difference???matthew5656 wrote:Both front and rear tires are only short one psi on my honda, but I've already felt a noticeable difference.

That's almost impossible on the street. The air pressure on the tire changes constanly as it heats up and ambient temperature significantly affects psi as well.
2008 Ducati Hypermotard 1100
2006 Kawasaki KLX250S
2004 Honda CBR600RR
2002 BMW R1150R
1996 Ducati 900SS
2006 Kawasaki KLX250S
2004 Honda CBR600RR
2002 BMW R1150R
1996 Ducati 900SS
- matthew5656
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HYPERR wrote:You felt a noticeable difference in a single psi difference???matthew5656 wrote:Both front and rear tires are only short one psi on my honda, but I've already felt a noticeable difference.![]()
That's almost impossible on the street. The air pressure on the tire changes constanly as it heats up and ambient temperature significantly affects psi as well.

Yea, more than likely you are correct and i'm simply getting lost with my imagination again. Once I discovered the tire was off by 1psi, the ride just felt softer and less responsive to me. Probably due to my reasoning above, and not the mechanics below. I need to inflate the tires soon, anyway.
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Yeah it's amazing how sometimes the mind can play games with us. I have ridden home on the superslab on my DP bike after a day on the trails where I got some cuts and slits on the knobbies and swore that the that it was starting to lose air, pull over and realize the tire is perfectly fine.matthew5656 wrote:
![]()
Yea, more than likely you are correct and i'm simply getting lost with my imagination again. Once I discovered the tire was off by 1psi, the ride just felt softer and less responsive to me. Probably due to my reasoning above, and not the mechanics below. I need to inflate the tires soon, anyway.

The fact of the matter is, air loss on a tubed tire isn't that gradual, it's pretty abrupt.


2008 Ducati Hypermotard 1100
2006 Kawasaki KLX250S
2004 Honda CBR600RR
2002 BMW R1150R
1996 Ducati 900SS
2006 Kawasaki KLX250S
2004 Honda CBR600RR
2002 BMW R1150R
1996 Ducati 900SS
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Wow, maybe I geuss cause its a heavier bike. My 250 was off like 4 or 5 PSI, and I didn't notice anything. Even when inflated to the recomended 28/32 I felt no difference. I'm 128lb's though.. so..Ninja Geoff wrote:youch, been there, done that. except i started to ride before i noticed it.![]()
My roomate went for a ride once, came back and told me he almost went off the road on the turn because the bike didn't want to lean (CBR929RR). We checked the tire preassure, it was off by 3 psi.