Following up from my previous 2 threads on wheels... http://priuschat.com/forums/prius-c-main-forum/105235-prius-c-steel-wheel-specs.html http://priuschat.com/forums/prius-c-accessories-modifications/105927-test-fit-wheels-prius-c-5.html First off, the main driving force to change out the wheels was for aesthetics... the wife hated the stock wheels and it's her car. So, armed with the okay to upgrade, I went and searched for suitable wheels for the c. My main considerations were reasonable price, light weight and of course a wheel that appealed to both my wife and I. I settled on some 6.5x15 40ET Konig Helium rims. I have used this rim on other cars and have been impressed with their quality, light weight and reasonable cost. That they are a direct knockoff of a Volk CE28 isn't necessary a bad thing, either. In preparation of the wheels after ordering, I had the stock tires dismounted from the steel wheels. My plan was to use the TPMS from the steel wheels in the new alloys. Here are some photos on how to remove the sensor from the steel wheel. The rims arrived and of course only one of the boxes of two shows up. Never mind... I quickly unpack the rims and have them taken to the shop to have the stock 175/65-15 tires mounted. I had some doubts if these would even mount on the rims without problems due to the new wheel's added 1.5" width, so I wanted to know right away if there were going to be any problems as soon as possible. Some hubcentric rings to mate the rims to the Prius c centerbore.These are needed to center the wheel on the mounting surface to eliminate any dynamic vibrations due to the rim being off center. I needed to check to see if the TPMS sensors were going to work with the new rims, so I do a quick test fit and find... that they will not work with the new rims. stock rim and how the sensor should lay in the rim... and how the sensor sits when mounted in the alloys... I decide not to mount the sensors in the wheels as they stick up too high above the surface that the tire bead sits on and have heard how sensors have been broken when tires are mounted. With these sticking up this high, it's just and invitation for a broken sensor. pic of the width difference between the 5" stock rim and 6.5" rims. again, weight of the stock 5x15 steel rim... and weight of the 6.5x15 rim being installed... Finally take the rims off to have the tires installed and this is the combined weight of the rim and tire... Some pics of a 175/65-15 tire mounted on a 6.5x15 ET 40 rim... While not ideal, I feel the tire will work fine with the rim. I'll run it and if there are problems down the line, will purchase some 185/50-15 tires for the added tread width.