The Wilwood Dynapro ST DP caliper is a 1.75 piston model with a .81" rotor listed under the ST family, which includes Thermlock pistons for improved heat control. It’s intended where heat management and steady braking are important, combining a bridged caliper layout with features that reduce temperature transfer to fluid and seals during demanding use.
Wilwood ST DP Caliper 1.75 .81 Rotor Ano