b4 newbie Q

[tonydevon]

Hi, I bought a B4 really cheap, only £35 and its in nice condition,

I also bought a job lot of spares from a member on here, well happy, should be crashproof for at least 1 meeting LOL

anyway

wheels are pin fitment on rear and simple stub axle front, is it worth changing to hex ones?

also in the spares is a spare chassis, didnt think much of it until I put it next to the buggy and realised its longer??

wht why when where would this be of use??

or is it from a different version, truggy or somehting