| Author | Message | ||
     Nm5150 |
I just got back from a ride today and noticed my front tire is scalloped.One edge of the tread is almost 1/16" taller on one side of the groove than the other near the center of the tire.I have seen this before but I seem to be destroying this set of tires faster than any I have before.I usually get 3 to 3.5 k miles out of the rear tire and change both tires around 7 k miles.These are the stock CorsaIII that came on my 1125R with 1800 k miles and the rear is already looking pretty shabby.Could I have my suspension set up wrong or doing something with my riding to cause the front to scallop so soon? | ||
| Wera44 |
Pressures? maybe. Now way a hard ass tire like that should be tearing on the street. Post up a picture. | ||
| Keef |
you use almost or actually use only the front brakes don't you...  | ||
| Mountainstorm |
I get the same wear pattern. I use my front brake and rear brake together. All it takes is one long ride with low pressure to do it I think. | ||
| Nm5150 |
Yes Mr.Keef,except for gravel I use the front.This is the lightest,shortest bike I have yet to own and when I am hard on the front the rear doesn't do a whole lot.I do ride her pretty hard but no harder than my GPz or Multistrada. | ||
| Wera44 |
What does only using the front brake have to do with it? | ||
| Brumbear |
http://www.youtube.com/watch?v=brRDwt4Q2kQ | ||
| Blur |
I'd bet the farm its your pressure. Check it and post what it is. If you went out for one short ride and its cupped already you're pressure is probably under 25psi I wouldn't got lower than 30psi cold. | ||
| Dave_bannister |
Rebound adjustment is not correct | ||
| Kidder |
1800k miles? Wow, that must be a record! (1,800,000 miles) (Message edited by Kidder on January 13, 2010) | ||
| Nm5150 |
I went out to the shop and checked my tires.They were indeed less than 25psi.I guess I have learned how important it is to check your tires in the cold weather.Thank all of you very much. Cavedug | ||
| Nm5150 |
I never change my tires before 18000000000 mile,kidder  | ||
| Nm5150 |
Dave,suspension is set as per owners manual for my weight.Can you tell me more about how rebound would cause this? | ||
| Milt |
Not just in cold weather. Doesn't hurt to do it in warm weather, too. Even a few pounds difference can make the bike handle funny. | ||
| Jdugger |
Close up picture of sides and center of tire, please. | ||
| Nm5150 |
Pics in the AM.Thanks for all of the help. | ||
| Dave_bannister |
Nm No doubt you should run the tire psi closer to 30, so once you have that corrected and if problem doesn't go away then look closer at suspension settings. Recommended settings are only ball park not always spot on. I believe too much rebound(slow return) could give you that tire wear pattern. Also riding in colder temps will affect settings seeing how the oil in forks are cold. Brumbear's video he posted in this thread is very good, worth your while to watch I just finished myself. | ||
| 1_mike |
Like Dave says... I run my tires at 33f/30r for commuting. If not the wear pattern is bad. Which means overall traction is compromised. On colder days, I'll drop the pressures a coupla pounds if going into the canyons. Mike | ||
| Nm5150 |
Thanks everyone.I have learned a lot in this post.I will make dbl sure of my air preasure and if that don't work I will work on my rebound.That was a great little video Bbear.Tried to post a pic but it is too large apparently Cavedug | ||
| Jeepinbueller |
Wow, I didn't realize the tire pressure made such a huge difference ... I have mine set at 34F 36R psi as per the manual. Not right? | ||
| Blur |
Most people don't realize how important pressures are. Depending on how often I go out, I check them every time. You only have two tires, if one of them isn't performing properly you're setting yourself up for some bad news. It's already hard enough out there. For cruising/commuting I would run a tad higher pressures. 34/36 sound about right. I've seen the recommended pressures for track riding (where the tire is getting as hot as its supposed to) 32/32 or 32/30. Just remember that when you ride and its not freezing cold out, your pressure will rise a few lbs. I've seen 4-5 psi increase for track riding from cold to hot. Count on 2-3 psi increase for street riding (when the temps are reasonable). If you ride every day you should check your pressure at least once a week. I'm a little anal about this, and have good reason to be but the bottom line is you should always have an idea for what your pressure is. If you don't, take 2 minutes and check it. (Message edited by blur on January 14, 2010) | ||
| Froggy |
You can install a tire pressure monitoring system so you can check the pressures while you ride. I got a setup going on my CR next time the wheels are off. | ||
| Dosmie |
Went out yesterday without checking the pressure. After a few turns the back end felt loose. Stopped and checked the pressures. Rear was at 9 lbs. I will never do that again.  . Not sure why the rear dropped so much. Will have to monitor for a slow leak. | ||
| Blur |
9 lbs!!! The stunters don't even go that low! | ||
| Nm5150 |
FWIW I was out messin' around with Peggy and when I went to roll her out of the shop the rear tire was flat!Fired up the compressor and the tire wouldn't take air.Once I got to looking I found the problem.I bought some fancy valve stem caps with rubber seals in them with the gift certificate they gave me when I bought the bike.When I screwed them on the seals seated in the end of my valve stems flush with the top.Dug them out with my pocket knife,problem solved.I guess this is why my tires leaked down. |
