I think it is also a bit car and possibly set-up dependent.
With my Losi 22 last summer I could quite easily chew a set of yellow rears in three runs in the dry and the drop off after that was so significant that it was not really worth running them even for club morning meetings - it would just spin out at the end of the straight.
After changing to the C4.1 this year I can easily do 6 runs before any real drop off. I did last sunday's meeting on 2 sets of part worn sets and car was the best it has been this year.
One theory I have is that the Losi was spinning the wheels more and therefore wearing the tyres more?
I suppose if tyre wear is an issue for you, you might want to look at slipper set-up or a softer motor?
Rob
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