Hi all,

my car honda city with tyre 175/65/R15 and i always do tyre rotation whenever service at honda service center, right now clocked 67k and 4 tyres are time to get a new one, planned to get 185/60/R15.. need sifus advise will they ask me to change chamber nut and stuff? all these while i do alignment/rotation at service center they never change the chamber nut. got to know some knowledge avoid them to scam me..

chamber nut is a scam, if you really involve in serious accident only people will recommend to change. If you go oversea, only Malaysia got this kind of chamber nut change.. lol.. BTW, if they tell you cannot adjust is bluff. It can be adjusted but minimal, the chamber nut is the screw that tighted to your absorber behind your brake hub. The absorber hole usually is larger a bit and not totally fit and got some allowance to adjust the chamber.

Did you ask them to loosen the screw of the chamber nut and ask them push the brake hub or move the absorbers?
Even your eyes see is fit, but the hole is not 100% same as per screw diameter. It can be adjusted but minimal as per explanation, i personally did my car before so i know.
If you in doubt just use a caliper and measure the hole on the absorbers/brake hub with both the screw to it. There are for sure some clearance between it.
FYI, factory chamber adjustment for sure one side will be out due to Malaysian road condition, our roads are not flat due to drainage for rain water so if out a bit is still consider acceptable.
The most important is the total toe adjustment must be in the green acceptable range.