Am I riding on borrowed time?
#1
Circus bear
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Am I riding on borrowed time?
So I've been riding my Fuji Cross for the last few months (all on road) and having a great time. I've worked my way up to doing an 11 mile loop each of the past three weekends.
Tonight I thought I'd go out for a short ride around the neighborhood, so I pumped up the tires and took off. As I left, I looked down at my back tire (for the first time ever) and noticed it looked flat. Went home and checked the pressure and everything looked good.
The ride went fine, but I noticed a little tendency for the bike to slide around in back. This has probably been the case on every ride, but I just noticed it because I was worried about the back tire.
The bike wears Kenda 700 x 35 tires with a maximum recommended pressure of 85 lbs. I'm 6'6" and weigh 375. Is this tire going to blow out and put me in the ditch? Can I put more air in than the max. psi? If so, how much?
Tonight I thought I'd go out for a short ride around the neighborhood, so I pumped up the tires and took off. As I left, I looked down at my back tire (for the first time ever) and noticed it looked flat. Went home and checked the pressure and everything looked good.
The ride went fine, but I noticed a little tendency for the bike to slide around in back. This has probably been the case on every ride, but I just noticed it because I was worried about the back tire.
The bike wears Kenda 700 x 35 tires with a maximum recommended pressure of 85 lbs. I'm 6'6" and weigh 375. Is this tire going to blow out and put me in the ditch? Can I put more air in than the max. psi? If so, how much?
#2
Rolling along
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The sidewall maximum pressure is half the pressure required to blow the tire
You might get a bit of a larger tire for the rear and of a higher quality (threads per inch) but keep on keep'in on
You might get a bit of a larger tire for the rear and of a higher quality (threads per inch) but keep on keep'in on
#3
Old and in the way.
We are all riding on borrowed time brother- in the long run mortality is always 100%. So ride hard, laugh long and dont drink crappy beer.
Maybe 100PSI would help too.
Maybe 100PSI would help too.
#4
just pedal
https://www.dorkypantsr.us/bike-tire-...alculator.html
while not perfect this is a good baseline to start off with... but it does look like you need a bit more pressure or more volume (aka bigger tire)
while not perfect this is a good baseline to start off with... but it does look like you need a bit more pressure or more volume (aka bigger tire)
#6
Really Old Senior Member
Just for grins, you might check something else- SPOKES.
Grab adjacent pairs and squeeze together. Look for obviously loose ones.
The DS spokes WILL be tighter than the NDS.
Then you can do a "pluck" test to see if the tone sounds similar between spokes on each side.
Your spokes may have loosened up giving you additional "squirreliness".
It appears you have a 32 spoke wheel. At your weight, 36 would be MUCH better.
Grab adjacent pairs and squeeze together. Look for obviously loose ones.
The DS spokes WILL be tighter than the NDS.
Then you can do a "pluck" test to see if the tone sounds similar between spokes on each side.
Your spokes may have loosened up giving you additional "squirreliness".
It appears you have a 32 spoke wheel. At your weight, 36 would be MUCH better.
#7
Old and in the way.
Oh yes- and congratulations on getting out there and riding! The more you do it, the easier it is to do more!
#8
Circus bear
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Thanks for your thoughts, ideas, and encouragement. Lots for me to think about and check. I think I'll see how 100psi works.
So no one gets out alive, eh? No matter how far we ride?
So no one gets out alive, eh? No matter how far we ride?
#13
just pedal
Just for grins, you might check something else- SPOKES.
Grab adjacent pairs and squeeze together. Look for obviously loose ones.
The DS spokes WILL be tighter than the NDS.
Then you can do a "pluck" test to see if the tone sounds similar between spokes on each side.
Your spokes may have loosened up giving you additional "squirreliness".
It appears you have a 32 spoke wheel. At your weight, 36 would be MUCH better.
Grab adjacent pairs and squeeze together. Look for obviously loose ones.
The DS spokes WILL be tighter than the NDS.
Then you can do a "pluck" test to see if the tone sounds similar between spokes on each side.
Your spokes may have loosened up giving you additional "squirreliness".
It appears you have a 32 spoke wheel. At your weight, 36 would be MUCH better.
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When it's time to replace the rear you might want to go with a tougher tire if most of your riding is on the road.
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Look here at the Schwalbe site. It's a good start. Others will chime in I'm sure. Google Fu is your friend.
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#18
Senior Member
Just to touch on something that nobody has mentioned yet, (and this is only my opinion)... unless you are doing a high speed descent going around a curve, a rear flat will rarely put you in a ditch. You'll usually slow down pretty quickly and might hear your bare rim on the pavement. If you avoid turns, especially sharp ones, you'll usually be able to stop without endangering yourself.
#19
Old and in the way.
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Just to touch on something that nobody has mentioned yet, (and this is only my opinion)... unless you are doing a high speed descent going around a curve, a rear flat will rarely put you in a ditch. You'll usually slow down pretty quickly and might hear your bare rim on the pavement. If you avoid turns, especially sharp ones, you'll usually be able to stop without endangering yourself.
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Here's a primer on tires from Sheldon Brown (and the rest of the site has everything else you want to know about bicycles).
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Ride the same tire as you,started at 440ish and down to 295(as of today), mine have always been the same way in the back. I over-pump mine up to about 100psi.