To fit M10 king pins.
The castor adjusters are available in a number of different options:
DOT 1 - Provides the least amount of castor
DOT 2 - Provides increased castor from DOT 1 for improved front end grip
DOT 4 - More castor than the standard OTK full castor kit. Ideal for wet conditions or low grip tracks where increased front end grip and turn in are required
DOT 5 - Provides maximum castor angle for very wet conditions where maximum front end grip is needed.
Centre (Blank) - Gives a castor angle in between standard zero and full castor. Ideal for where more release from rear corner grip is required.