I have a very good condition 2014 CRG RX28 chassis for sale, this chassis is designed for use in junior Rotax, it is extremely easy and forgiving to set up. It has never been crashed and the frame has never been bent. I have always used protectors on the underside of the frame. It would also be an ideal chassis for Mini Max. It has adjustable wheelbase allowing approx. 1020mm for Mini Max.
It is pretty much the same chassis as a Black Star from what I can see, (we are now racing a Black Star in Rotax Max Senior), asides from having a 28/30 frame which is ideal for the junior engine.
Many chassis’ we have used lose much traction with only a small error in setup. This chassis is far more forgiving allowing for a reasonable margin of error. I would certainly not consider myself a tuner, yet my son attained third place in the regional championship with this chassis with only myself tuning it. He was in fact only 1 point off second place.
Photo’s available, please email me to request. andy underscore rylance at live dot com