| Author | Message | ||
     M2statz |
My brakes are fairly new about 3000 miles on them and the tire itself. It is a Dunflop, however why is cupping? Could this be a fork issue? | ||
| Xl1200r |
Check the pressure in the tire. All of my fronts cup and I was told once why, but I can't remember. | ||
| Ezblast |
Unequal fork length, or fork oil amount? EZ | ||
| Babired |
EZ check your air pressure. I have Dunlops on the X1 and noticed when you really get picky with the air pressure in your tires the cupping doesn't happen as quick and I've noticed with the dunlops when I'm ready to replace them they cup. I have gotten about 3,000 miles from them too then went to the sport max tires they wore better but I liked the Dunlops ride better. K | ||
| Jb2 |
Nature of the Dunlops. Every set I've owned had the front cup regardless of tire pressure or model of bike. My S3 and both S2's in the Buell line and every Sporty did the same. I had a set of Dunlops on the Vic I just bought and they did the same. I've since went to Metzler Marathons and wore the front down to the wear indicators with absolutely no cupping. JB2 | ||
| Ft_bstrd |
I got slight cupping with my D616's I get more feathering than cupping. Rub your hand against the rotation and it's like a saw blade. | ||
| Barker |
"Nature of the Dunlops." +1 The D616 front is an awful tire. It only gets worse the more you use it. | ||
| Bigdaddy |
I thought that the D616s came pre-cupped? I could be wrong, maybe, but of the two sets I went through (one was free,) they both sucked. The 616 has no peer in the crappiest motorcycle tire ever produced field. | ||
| Paint_shaker |
Dunslops... Would you like that in a "C" or a "D" cup?? LOL | ||
| Krassh |
Q. How can I keep my tires from cupping? http://www.dunlopmotorcycle.com/infocenter_faq.asp?id=9 A. You may not be able to entirely avoid cupping. Tire cupping or irregular wear is a somewhat common occurrence on all vehicles. On a four-wheel vehicle, you are advised to rotate your tires periodically to even out wear. Unfortunately, you do not have this luxury with a motorcycle because front and rear tires, unlike those on a four-wheel vehicle, are not interchangeable. However, there are steps that can be taken to minimize cupping and uneven wear on a motorcycle: Maintain your motorcycle and particularly your front forks and suspension. Avoid hard braking whenever possible. Braking causes the tire to grab and wear in one direction. When braking is applied to the front tire, the load transfer over-flexes the tire and increases the tendency for cupping and uneven wear. Maintain your tire pressures. Underinflation or overinflation in motorcycle tires are significant causes of cupping and uneven wear, particularly in association with hard braking and/or trailer use. Some of today's tires feature tread patterns and constructions that are less prone to cupping than the ribbed tires of old. The Dunlop 491, D401 and D402 touring and sport touring tires are good examples. Tire companies can, and are, helping to minimize cupping and uneven wear but you, the rider, must do your part. Follow the aforementioned guidelines. How Much Run-in Should I Give a New Tire? When new tires are fitted, they should not be subjected to maximum power or hard cornering until a reasonable run-in distance of approximately 100 miles has been achieved. This is necessary for a number of reasons. Replacements for worn tires with different patterns and construction will not react the same. Also, a new tire is stiffer than an old tire. The new tire has a rounder tread profile, different contact patch and "lean-over edge" than the worn profile of an old tire. The new tire will also not react the same in combination with its remaining tire. Carrying out the required run-in will allow you to become accustomed to the "feel" of the new tires and tire combinations, so you are better able to achieve optimum road grip for use in high speed, high acceleration and handling situations. (Message edited by krassh on September 26, 2008) | ||
| M2statz |
Jb2 what kind of mileage are getting out of the Metzlers? Thanks | ||
| Jb2 |
M2statz, I got 7,000 miles out of the rear and 10,000 out of the front. When I changed the rear I could have got another 1,000 miles out of it but they get kinda squirrely on the last thousand miles if you have to ride in the rain. Of course we're talking a complete different ride than a sport bike with its 18" fat rear and a narrow 21" in the front. But also keep in mind that I only got 3,000 miles out of the first Dunlop Cruisemax front tire and at 6,000 miles the rear was showing cords. Piss poor tires. JB2 | ||
| Torqd |
"Nature of the Dunlops." +1 All of my Dunlops Cupped early... |
