Izza

Nice! Lol same concern here mate. Thankfully the Vitz is happy with 92 octane. Is it in the same stretch of highway you get this noise? I experienced a similar noise from tires few times in the highway (in a different vehicle though). Checked the tires and then noticed that in the particular stretch of highway, the carpeting has been removed and roughened for re-carpeting, hence the noise. The noise went away once the re-carpeting was done.

Wow, no fuel economy & pulling power change after going for 7JJ with 195 tires? Bdw, just for my knowledge what is the average fuel econ figure you see? Well I think before doing a mod its better to know the consequences. And yes, I too am thinking for fitting a used set of tires to get an idea first 👍

Could not find them locally. Sourced these from e**y for a few dollars. You just need to measure the vehicle hub bore and the wheel center bore correctly. However, was surprised to see that most of the alloy wheel places/modifications garages haven't even heard of hub centric rings. I thought there would be plenty around, seeing the amount of aftermarket alloy wheels on sale everywhere 🤔

Thanks @iRage. As always, your inputs are much appreciated. I will go ahead with the upsizing and see what happens. If anything is compromised too drastically, specially the acceleration, will think of reverting to 14" again.

Yeah, wheel arch side is ok. I checked that. That was on my mind actually, but unfortunately I can't do that straightaway. What I can do is the alloys + tires, and then maybe front upper and back lower strut bars to start with. One clarification, even if I go for a proper suspension setup with coilovers/lowering springs, I assume the slowness in acceleration would still be there? Since the original cause of that is the added weight and higher rolling resistance.

Thanks @iRage for the detailed explanation, and pardon my ignorance. Yes, it makes sense. My current setup is not actually the stock steelies, they are some Chinese alloys 14" 6J, with +40 offset. And it carries the stock size tires 165/70 R14. The setup weights at around 12 kg (6kg for the wheel and 6kg for the inflated tyre) I measured the contact patch and with 32 PSI it seems it is slightly less than 6". With this setup, the acceleration/peppiness is ok-ish. And I have driven the same Vitz 1.0L cars with the stock steel wheel setup, and did not note a noticeable drop in acceleration because I have 6" wheels. With the new setup alloys are 15" 6.5J with +35 offset. I came across some wheels with 15" 6J but they were actually heavier than the 15" 6.5J ones I have now. So, I assume it will for sure have a hit on fuel economy + reduction in the peppiness. Plus, the increased width might not be always increase stability. Hmm. Wonder if I should just live with the current setup then.

@amsandun How is your experience after upgrading to 175? Thinking of doing the same for a Vitz 1.0L myself.

Thanks @iRage. A proper suspension upgrade was on my mind, but unfortunately need to give priority to some other personal commitments. Reasons for 15 inch wheels - better visual effect + the increases stability with 175mm wide tires. Vitz actually has quite a reasonable sized wheel well, but the 14 inch stock tires look tiny in those. Lower profile with 14 would make it look even more smaller IMO. However, the stock width is 165mm (6.5"), not 5.5", and increasing to 175mm means the width would become 6.9". I did not think that would make a huge difference. And I don't think rubbing will be an issue here.

Hi Folks, I own a Vitz 2017 1000cc (yeah the boring KSP130). Wanted to upsize the wheels from stock 14 to 15. Hence, went searching for a good alloy wheel set, and managed to find a set (~ 5kg each). However, was hit by a different challenge. The recommended wheel size to upsize is 175/60 R15, which has a 0.9% increase in the overall diameter. Unfortunately this size is quite rare in SL, and I was not able to find a set till now. However, 175/65 R15 is widely available in many brands. But, the change of the overall diameter is 3.9% which exceeds the recommended tolerance level which is 3% as I read. I know upsizing will effect fuel figures, that I do not mind a lot. Also the speedometer and odo meter reading glitches are not huge concerns for me. However, being a Vitz 1.0L the acceleration is pretty average now as well, therefore putting additional weight and slowing down the acceleration further is something I would like to avoid if possible. Couple of questions: 1. If I manage to find a lightweight set of 175/65 R15 tires with low rolling resistance, where the combination of the wheel + tyre weight is approximately similar to what is there currently, would it stil feel slow in acceleration? Anyone who has prior experience? 2. Apart from the fuel consumption, speedometer + odometer readings, any other potential issues which can arise from going above 3% of original diameter? Thank you.

Yeah, I did. They have a shipment due around December. This is actually for a tire up-sizing purpose.. Going from 14" to 15". Can wait till this size is available, not urgent.. Hence did not think of going for an alternate size.

Thanks @kirala2. Saw the same, but they are also out of stock.

Thanks @Rickyland. However, practically getting this down from E*ay etc. is not possible since the import tax will be huge. I talked with a couple local tire agents, and some of them mentioned that they are awaiting shipments and this size will be available once they get the stocks. So, will be waiting till then.

Hi folks, Was trying to find a set of 175/60 R15 tyres but none of the places I called has these in stock. In fact some places mentioned they have never had this size. Any idea on a shop which might stock such tyres?

Gents, Any place to buy a set of hub centric rings for aftermarket alloy wheels? Checked from a few popular Alloy Wheel traders including J.J., but no go.

Hi @iRage Please PM me those details (recommended places to get the mods done, specially the struts) Thank you.

Hey JC, Would have definitely gone for a higher capacity engine and RS, if not for the crazy tax structure we have in SL.. However researching, planning and doing all this (or at least what you can afford) by yourself has its own personal satisfaction

@iRage Thank you so much! All of these are too much for a single round, will have to do them over a considerable period of time, if I decide to do it @Davy No it does not have alloys. Yes I too pondered about getting alloys, but got the same response you have given that with the stock set of tyres there might be no big difference. Will try to go for wider ones. Also, since good alloys are light weight, that should counter the additional weight from wider tyres and the affect on fuel consumption? Bdw, thanks a lot for the input!

Thanks @iRage Have not decided on a concrete budget yet, but anything up to 150k is fine. And I would rather only do the strut bars and coilovers/lowering springs at least to start with.

Hi folks, Recently got down a Toyota Vitz 1.0 2017, and am looking to make it a bit more exciting to drive Can't do anything about the engine of course, but I have heard that you can do suspension & wheels upgrade which can make it far more interesting. I searched the autolanka forums but could not find enough information. So, has anyone done this? What exactly are the benefits of doing it? How much would be the cost and where to get it done? Thanks in advance!