Been wanting to update here for some time. Upgraded my A-Star's tyre and rim. Moved from 13inch to 14inch rims. Being an old beater car I wasn't keen on alloys yet the standard 14inch rims from celerio were boring. And that is when I spotted the Renault Tribers 14inch 'alloyish' looking 5 spoke steel rims. Was actively looking for it and then found someone selling brand new unused rims on OLX.
Then came the hunt for tyres. I went for the same width as triber 165 which was a small bump up from 155 oe tyres. Anything beyond I thought was an overkill for a 67bhp car. The final size - 165/70 R14. Browsing through the tyremarket.com, I got a great deal on the Continental CC5 tyres. Have written about it
here (Tyremarket.com Reviews? Buying tyres online) .
Armed with the tyre and rims I headed to Madhus for the fitting.
As usual a great experience at Madhus. The tyres were obviously super silent, compared to 5 year old MRF ZVTS. However I quickly ran into a problem - My rear tyres occasionally scraped.

Somewhere I had screwed up. I knew that the overall diameter of the tyre wasn't that different from the previous set up. A quick check on the Wheel specs showed a few things.
Astar Rim : 100 PCD, 4.5J, 13", ET45
Triber Rim : 100 PCD, 4J, 14", ET
25
A quick read up on the concept of offsets taught me that the new wheel set up has ensured that the wheel doesn't go in as deep as previous set up, instead juts out a wee little bit. enough to touch the fender when loaded or when hitting a bump at a higher speed. This got me trying to figure out the solution. Finally thought I will go in for the Autocue Ground Clearance kit and buy myself some extra MM.
In this day of slammed cars and lowering springs, my humble beater was ready to take on SUVs.

With the ground clearance kit installed between the rear spring and the body I dont scrape even with two adults at the rear. However for those familiar with the ORR underpass at JP nagar, I scraped with just two in front when I hit that underpass at around 60kph. But that was the only incident. I know my rear dampers/shocks are weak. Not sure that was the cause though.
Anyways here is the car with her new rims and tyres.
Here is a before and after.
Total Damage
Tyres - 11,800
Rims - 2,500
Installation -1,500
GC kit - 2,200
& a valuable lesson in Offsets.
