These are the stock replacement Team Associated B74 9° Aluminum Caster Block Set. Also available are the 8° (ASC92175) and 10° (ASC92177) Blocks.
Fits the following:
Team Associated RC10 B74 Original
Team Associated RC10 B74.1
Team Associated RC10 B74.1D
Team Associated RC10 B74.2
Team Associated RC10 B74.2D
Team Associated RC10B74.2 CE