Slottolution slotcar chassis fits to the body of the ARII Owners Club Series 3.5l CSL , for example KIT NO. 21154-1500.
13D motors fits: Motor diameter max. 21mm, flat-diameter max. 16mm, lenght max. 37mm, diameter flange max. 6,5mm, distance screws 11-13mm
For example: Slotdevil Motor 3025
If you want to use a different motor, please have a look into my shop.
Distance between front- and rear-axle: 109,0mm
Height of the chassis is adjustable +/-2mm
Showed front wheels have outer diameter of 24,5mm and width (all) 14mm
Showed rear wheels have outer diameter of 26,5mm and width (all) 19mm
(Frankenslot BMW M1 124 wheels)
For question please watch linked Youtube video or write me a mail.