MB
29th January 2016, 12:20 AM
G'Day NP.com.au,
Hopefully someone out there can please pass on some practical experienced tyre/rim advice for another concept I'm currently toying with on my current build.
www.bfgoodrich.com.au/product-range/4x4-tyres/4x4-suv-tyres/mud-terrain-km2/
Have always 'personally preferred' and driven on BF MT's myself, did trial many others and always came back for what I felt the perfect balance of lugs/noise/performance on&off and overall longevity especially with the old KM1's.
With this new build, and having been out of the game for quite some years have just found on the link above a new '35x12.50R18'
In the old days the KM1's I believe only had R15 & rarer R16 option at a much higher price.
Fraser Island 1995, I foolishly swerved at 60-70kmph past Waddy Point Nth bound with KM1's R15's @ 20psi, scariest/luckiest most stupid thing I've nearly ever done as a young bloke yet kept her upright somehow?
Moving on from my stupidity, I am now theorising about these new found R18's and need some help please.
Query 1:
Physics (in sand)
If the rim size is say R18 and the OD tyre size '35" example' is the same size would say 20psi create a longer track/footprint than say would an R15 rim could?
(Absolutely I believe the sideways stability is greater but does the footprint length extend by any chance? )
Query 2:
Practicality (High Country home rocks/rutts)
Living here South in Mexico-Vic, majority off road work for this project will be rocky steel rim-smashing country.
(Would R18s with 35" OD's be destroyed faster than steel R15s ?)
I'm hoping if 'Query1' is scientifically tangible, then 'Query2' could see tyres kept at higher psi's in the High Country and hopefully cancelling/levelling out the rim smashing potential!
Many thanks MB !
Hopefully someone out there can please pass on some practical experienced tyre/rim advice for another concept I'm currently toying with on my current build.
www.bfgoodrich.com.au/product-range/4x4-tyres/4x4-suv-tyres/mud-terrain-km2/
Have always 'personally preferred' and driven on BF MT's myself, did trial many others and always came back for what I felt the perfect balance of lugs/noise/performance on&off and overall longevity especially with the old KM1's.
With this new build, and having been out of the game for quite some years have just found on the link above a new '35x12.50R18'
In the old days the KM1's I believe only had R15 & rarer R16 option at a much higher price.
Fraser Island 1995, I foolishly swerved at 60-70kmph past Waddy Point Nth bound with KM1's R15's @ 20psi, scariest/luckiest most stupid thing I've nearly ever done as a young bloke yet kept her upright somehow?
Moving on from my stupidity, I am now theorising about these new found R18's and need some help please.
Query 1:
Physics (in sand)
If the rim size is say R18 and the OD tyre size '35" example' is the same size would say 20psi create a longer track/footprint than say would an R15 rim could?
(Absolutely I believe the sideways stability is greater but does the footprint length extend by any chance? )
Query 2:
Practicality (High Country home rocks/rutts)
Living here South in Mexico-Vic, majority off road work for this project will be rocky steel rim-smashing country.
(Would R18s with 35" OD's be destroyed faster than steel R15s ?)
I'm hoping if 'Query1' is scientifically tangible, then 'Query2' could see tyres kept at higher psi's in the High Country and hopefully cancelling/levelling out the rim smashing potential!
Many thanks MB !