On Tuesday, July 17, 2018 at 10:38:55 AM UTC-5, Scott Williams wrote:
does anyone know the Parker/Cleveland part number for the brake Disk
used on a Grob Twin II fixed gear which used a Cleveland caliper? Glider made about 1981.
I'm aware of the Dot 3/4 compatible O-ring used in the caliper.

Thanks,
Scott

Further a Cleveland/parker part # for a chrome disc is 126-12601