Statistics: Wheel size tyre analysis
Wheel size tyre analysis
The has been a lot of speculation on this Internet regarding the cause. Many commenting on this issue say that it is normal, or only super sports models or AMG models are affected. We have performed an affected wheel size tyre analysis based upon those who filled out the survey. And when you look across the various online communities it shouldn’t come as a surprise that in short; all wheel sizes are affected.
The first part in this series can be found here https://www.mercedescrabbing.org/2017/02/21/statistics-affected-model-analysis/
The main purpose of setting up this site was to collect some data from owners that are affected by this issue. The method employed is an online survey which can only be completed by those owners who are verified Mercedes owners. As part of the submission is a signed declaration that they have the ‘crabbing’ issue.
At the date of creation of this post, there has been a 46% response rate from registered owners. The graphics used in this post will be continuously updated as they are generated using live access to the data.
If you are an owner, and encountering this issue, please do fill out the survey to contribute to the results of the affected model analysis. You can find the link here: https://www.mercedescrabbing.org/2017/01/31/mercedes-owner-survey/
The affected wheel diameter analysis focussed on the wheel size of the cars. Many comments across the Internet suggest it is because these vehicles have wheels that are too big, and tyre walls that are too low. The analysis of the data provided by owners suggest that the crabbing issue is indiscriminate of the wheel diameter.
Another comment we have often heard is that we must have so and so tyres as they always do this. I think the chart quite clearly demonstrates that this does not relate to one particular tyre manufacturer.
The idea behind this question was to see whether the seasonality of the tyre makes a difference. As they all are supplied on summer tyres it didn’t really get much useful response. What is interesting to note is that there is a response of All Season Tyres also being affected. Considering the allegedly leaked release from Mercedes this could be quite concerning. I would suggest the sample size is to small at the moment to provide sufficient feedback.
Tyre sidewall height
There is a lot of discussion regarding the the tyre profile, but without taking the width into account it is a rather meaningless discussion point. So when you do that and actually calculate the tyre sidewall height for the front wheel you get the following distribution. Again, it doesn’t seem to be a relevant factor at all.
What is next
The next posts in the series surrounding the statistics will cover;
If you have any other topics you’d like to see covered, please put them in the comment section below.