The VEN04 series uses a thin MC style disc, that tended to get hot.
The 05 solved that by going to a ventilated disc.
ETA, found this thread: CRG - Making Ven05 brakes fit a Ven99 chassis
The VEN04 series uses a thin MC style disc, that tended to get hot.
The 05 solved that by going to a ventilated disc.
ETA, found this thread: CRG - Making Ven05 brakes fit a Ven99 chassis