The STR-43 is engineered with the same race-winning design paradigms used in the whole range of StopTech STR calipers, but on a smaller scale to fit smaller rotor and wheel diameters. It is also an immediate upgrade as a direct replacement for existing calipers in its class. The caliper’s structure and bolt placement makes this one of the stiffest calipers out there. 

  • MIL-spec hard anodizing on calipers resists color change or fading
  • Forged and weight-optimized, up to 20 percent lighter than standard calipers
  • Stiffest calipers available with patented strengthening bridge for improved pedal feel and modulation
  • Eliminates pad taper wear and provides consistent, confidence-inspiring performance
  • Calipers and piston sizing specifically matched to each application




Classification

Number of Pistons
4
Weight
6.1lbs
Max Rotor Outer Diameter
332mm
Rotor Thickness
22mm; 25.4mm;  28mm;  32mm
Piston Range
26-46mm
Radial/Axial Radial
Axial
Mount Spacing 180mm
88.9mm
Hole Size 12.2mm
11.3mm
Offset from Centerline 29.5mm; 31.2mm; 32.5mm; 34.5mm 
34.8mm; 36.5mm; 37.8mm; 39.8mm

Compatible Pad Shapes

Pad Shape
8571-DR21 8566-DR21
Pad Thickness
16.7mm 20.5mm
Pad Volume
59cm3 78cm3
Pad Annulus
39.7mm 40.0mm
Pad Drawing

Notes