Strange Evolution 4 Piston Brake Caliper - STB1900

Four Piston Evolution 4 Caliper

• Computer finite element analysis (FEA) optimized and field-tested caliper
• Evolution 4 design improves piston retraction, pedal feel, and stiffness
• High retraction piston and O-ring design to eliminate drag during acceleration
• Results in improved pad wear and exemplary braking efficiency

Body

• 6061-T6511 fully machined billet aluminum
• Material enhances bridge stiffness
• Promotes smooth piston release
• Provides responsive pedal feel
• Two bleeder screws ensure complete air evacuation
• 5.250" mounting bolt centers

Stainless Steel Pistons

• Material mitigates heat transfer to brake fluid
• Reverse dish pressure vessel piston maximizes stiffness
• Provides exceptional clamping force & improves pedal feel
• High thermal resistance combats brake fluid boiling potential
• All pistons are 1.750" for increased clamping force

High Retraction Piston O-rings

• Reduced rotational drag during acceleration
• Improves braking efficiency
• Increases brake pad life

Type II Black Anodize

• Corrosion, heat, and brake fluid resistance