{"id":17642,"date":"2013-01-23T11:54:42","date_gmt":"2013-01-23T15:54:42","guid":{"rendered":"http:\/\/ok-cleek.com\/blogs\/?p=17642"},"modified":"2013-01-23T11:54:42","modified_gmt":"2013-01-23T15:54:42","slug":"re-tired-wandering-groovily","status":"publish","type":"post","link":"https:\/\/ok-cleek.com\/blogs\/?p=17642","title":{"rendered":"Re-tired, Wandering, Groovily"},"content":{"rendered":"

As I've mentioned a couple of times, I recently had new tires installed on my car. The original Pirelli P6's had nearly worn smooth and one of them was leaking. So, I replaced them with some Continental DWS's, which were reported to be a bit better in some ways than the Pirellis, and were a touch cheaper.<\/p>\n


\nThey give a much smoother ride. And maybe they're too smooth; by comparison, I think I prefer the Pirellis relatively rough, feel-the-road style - it's more fun. Too late now. But more importantly, they've significantly changed the way the car handles on the main road near our house. That road is a busy four lane highway, and while the pavement is generally in good condition, there is a long stretch where surface itself is deformed by deep, parallel ruts running down the lanes in the direction of traffic: spaced exactly the width of a large truck axle apart.<\/p>\n


\nPreviously, when my car would get to this section of road it would toss from side to side as if there was a really strong and gusty crosswind. And since this section of road is crossing a large lake, just ten or so feet off above the water, that what I assumed was happening. And then I noticed that the grass on the side of the road was immune to this wind. Odd. So, not wind. <\/p>\n

Then I noticed the ruts in the road and figured out that my wheels were just the right distance apart that if my right tires were in the valley of the right rut, that my left tires would be up on the side of the left rut, which would pull the car to the left. And then I'd have the opposite pull when the right tires got up on the side of their rut. Ah ha! But how could the state not fix this road? People drive 70mph through here, and cars being tossed side to side at that speed would surely cause a higher number of accidents along that stretch of road. Then I started watching other cars to see if it was happening to them; it wasn't. Nobody else would shift to the side in the spots my car shifted to the side. OK.. Maybe it had to do with the precise width of my axles? But, before I could verify that, or come up with any other things to blame it on, I replaced the Pirelli's. And that completely<\/i> stopped side-to-side tossing. So, there was something about those Pirellis, or perhaps how they were set up\/alilgned, that disagreed with US 64.<\/p>\n

Fascinated, I started Googling, and discovered that the phenomenon is called tramlining<\/a> (or groove wander<\/a>), and it is indeed tire-related.<\/p>\n

And that's how I learn.<\/p>\n","protected":false},"excerpt":{"rendered":"

As I've mentioned a couple of times, I recently had new tires installed on my car. The original Pirelli P6's had nearly worn smooth and one of them was leaking. So, I replaced them with some Continental DWS's, which were reported to be a bit better in some ways than the Pirellis, and were a […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17642","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=\/wp\/v2\/posts\/17642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17642"}],"version-history":[{"count":0,"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=\/wp\/v2\/posts\/17642\/revisions"}],"wp:attachment":[{"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ok-cleek.com\/blogs\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}