The car runs 185 x 14 at the rear, the 6 covers that I have are starting to get a bit thin and one has a hole in the side wall after traversing the infamous Crackington clay-hiding-sharp rocks horror.
I have used Kingpin Pacers but the factory tells me that they are no longer made. I also enquired after the KS4, but was told they had no stock as they have no tyre cases. In any case if they are available they come in 6 or 8 ply which I think would be too stiff for trials.
Reading this month’s Restart the Matador MP300 sounded promising, but the best availability I could find was a pair of second had ones on Ebay for £83.
Googling the Nexen SB302 produced no results at all. I rang Harold’s Tyres in Penrith and they suggested a Hankook K 715, but this is only available as a 185/80/14.
Looking at the ACTC list I guess the SB302 is a typo and should be the SB802. As far as I can make out it is only available in 185/80/14 size, whereas the Kingpin Pacer is clearly marked 185x14 90P so I assume it has a 90 section. What are the implications of going from 90 to 80 section?
Most of the other tyres on the list seem to be unavailable.
Does anyone have any suggestions?
The 90P maybe the load rating. As far as I know an 80 ratio is as high as you can get now.
ReplyDeleteA 185/80/14 is a full size tyre, the same as 185/14
ReplyDeleteThe 90P (I think) are load and speed ratings.
Thanks guys, do you know any alternative to the Nexen SB802?
ReplyDeleteThe comments on sizing are correct. A standard profile tyre is 80% of the width although this varies from manufacturer to manufacturer. The 90P is the load and speed rating. A load index of 90 is 600kg per tyre - this tyre will have a pretty stiff sidewall for a comparatively light trials car. A "P" speed rating is 93mph, most modern cars have "H" 130mph or "V" 149mph ratings in comparison.
ReplyDeleteNeil
Hi the 90 p is indeed a load and speed rating,a 185x14 is in fact an 82 series tyre,they then brought out tyres marked 185/80x14 and dropped the 185x14 marking ,the pair will run together with no issues, getting a bit hard to find unless 8ply van are used.
ReplyDeletePhil
Two contributions to this debate:
ReplyDeleteI stupidly bought a pair of 185/70x14 tyres some years ago when 14" tyres were in very short supply and, predictably, they were a disaster on the back. I did think about using them on the front but prefer 165 or 175 section to help the Marlin's less-than-perfect steering.
Matador MP300s are NOT a universal solution, as all who've used them will testify. They are great in deep mud and/or low tyre pressures but dreadful on stony surfaces or anything much above 10/12psi. With the increasing use of tyre pressure restrictions, there are very few events which I'd want to tackle with MP300s on the back.
I've been happy with the king pin pacers with plenty of weight on the back I get reasonable grip. They are also ok on stone and I've only had one puncture in three years. Mind you we rarely go less than 10 psi.
ReplyDelete