4wd front tyres on rear

[millzy]

I’ve heard talk of this, but don’t fully understand why and when its done

this BRCA national legal right? as the rules states that we have to run a mini spike or BB spike at national events but not the size of the tyre

[RogerM]

Do the national rules not give part numbers for applicable tires any more??? Not really looked at this years rule book yet

[millzy]

thats a good question I dont know. im sure some one like northy ...cue Mr G will know

I really would like to know why and when its done first.

[Northy]

Originally Posted by millzy

thats a good question I dont know. im sure some one like northy ...cue Mr G will know

I really would like to know why and when its done first.

No part numbers specified

G

[millzy]

See knew you was Da man for that Question Boss

now who can answer my main question

Greenwood knows somthing about this im sure

[Northy]

Cue captain understeer

G

[_sleigh_]

I never profess to be a mad science guy, but wouldn't the reduced contact area actually increase the force applied downward on each spike. As the weight would be distributed evenly across less spikes. Bit like ice racing with them skinny tyres. ?? more forward drive, but less side-bite ??

I seem to remember a Tiverton winter series with people trying Step-Pin 4WD "width" fronts on narrow rear wheels to get more drive.

Perhaps a mad science type guy can confirm my great theory, or better still shoot it to bits.