| Author | Message | ||
     Hogs |
I was told and think I saw in threads here that the stock dunlop 207 180 is really a 190 when measured off the rim..So my ? is can one put a 190 from another company on..Was told from a friend who races that it would be no plm. to put a 190 on anyways even if it came with a 180 stock ...He said going from a 180 up one step to a 190 would not hurt the performance any and you might even LIKE the difference ...What ya all think...??? | ||
| Stealthxb |
What's the point? | ||
| M1combat |
Well, when I switched to a 180 Metzeler I certainly noticed the difference people describe when switching from a 190 to a 180... Personally, I'll never put a 190 on my bike if that's what they feel like. I didn't know until I switched, but I hated the stock tire. The differences people describe when going to a 190 is that the bike leans in a good deal slower and seems less flickable. If the stock tire is indeed a 190, I would agree with that and will use 180's on my 12R from here on out. Unless of course if I start racing it, then I'll use whatever I can get the best laps on. Tight twisty tracks should be best with a 180, and faster tracks should like a 190 (or so I hear). | ||
| Hogs |
Thanks M1, yeah racers do know that even one step as small as that may seem... to others... MAKES a difference in the twisties..in and out quick I think a 190 wd. be better or perhaps I got that wrong... | ||
| M1combat |
That's wrong... Turn in is quicker on a narrow tire according to my research and what I have felt. "I" think it's more a function of the profile of the tire though as opposed to JUST the width. I don't mean the height or the second number in the size but the roundness of the tire when viewed from the front or rear of the tire. Personally I believe that the feel of a tire is more important than it's profile though. The Metzelers I put on mine feel VERY nice. VERY nice. | ||
| Socoken |
turn in on a fatter tire is slower if the rim can match it. i have a 170 208 on my M2, so if a 180 is a 190, then my 170 might be closer to 180??? in any case, the profile of the 208 is way rounder than the 170 avon i ran or the 170 205 that came on it. it turns in a lot quicker because the smaller rim forces the fatter tire to be more rounded, or so i think. handling is far better than the 205 (duh) but nowhere near the avon. edited by socoken on July 07, 2004 | ||
| Rocketman |
That second number is THE all important number when calculating the tyres profile. That number represents the height of the tyres sidewall as a percentage of the tyres width. Referring to tyre size it is important to understand the value of the whole number and not just the tyres width. A 190 as opposed to a 180 is not enough information to work out the tyres intended purpose. Rule of thumb. The narrower the width and taller the profile the quicker the bike will get on its side. Rocket | ||
| Wyckedflesh |
http://www.sportrider.com/tech/tires/146_0206_size/ | ||
| M1combat |
Understood Rocket, but that number means little if you don't know what width rim the manufacturer is claiming those measurements are good for. Unless there's a standard I'm unaware of and all manufacturers measure their tires on •••••" or 6" wide rim. | ||
| Wyckedflesh |
Each manufacturer specifies what rim sizes their tires fit, and are recommended for if the tire happens to work with multiple rim sizes. | ||
| Blake |
Stick with the 180. | ||
| Hogs |
Great well ... we are working with •••• number in here not a 50 what ever this changes to those reports...?? who knows, is the stock rim on the 12r •••••• or a 6 inch width?? guess this will change those reports as well....if the 190 will be ok since they were going with ••••• inch width... | ||
| Hogs |
wtf..oh well it is ••••• just found it out...hmmmm | ||
| Hogs |
five point five inches damn dots :-) | ||
| Lightisright |
You need to take all tire measurements with the tire inflated and installed on the design rim width for that size. The design rim width for a 180/55R17 tire is •••••". There are design guidelines for all tires that give section width, overall diameter, etc. but these are NOMINAL numbers. There is a 'box' of permissable dimensions for each size. Therefore not all 180/55R17 tires will measure up the same. I think most manuf. give this info on their websites (infl, mounted dimensions). |
