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Performance Machine 4 Piston Brake Caliper 125x4S

Part #:WPN-100278

Price range: $354.49 through $368.9515% OFF

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Four-piston billet aluminum front brake caliper for 1988-2006 Harley-Davidson Softail Springer and 1984-1985 Sportster, includes pads and hardware; may require additional bracket.

  • ShippingFree over $99
  • Sales tax0% outside SD
  • Usually ships1 to 3 business days
(605) 498-0105 M–F | 9:00–4:30 CST90-Day ReturnsExpedited & international shippingMade in USA

Performance Machine 4 Piston Brake Caliper 125x4S

The Performance Machine 125x4S delivers the stopping authority of a four-piston caliper in a form engineered for the exacting geometry of Harley-Davidson Springer Softails and early Sportsters. Riders upgrading from stock brakes will notice an immediate improvement in feel, modulation, and overall braking confidence on the road or at a show.

Key Features

  • Four-piston dual-action design for superior stopping power over single- and two-piston alternatives
  • Precision-machined from billet aluminum for strength and corrosion resistance
  • Available in Polished, Chrome, and Black Contrast Cut finishes
  • Black Contrast Cut finish: Polished base, black anodized, then machine-recut for a two-tone effect
  • Fits 1988-2006 Softail Springer (FXSTS), 1995-1997 Bad Boy (FXSTSB), and 1984-1985 Sportster 1000 variants
  • Includes brake pads, bleeder screw, and 3/8-24 banjo bolt
  • Made in the USA

Technical Specifications

Piston Configuration
4-piston dual-action
Disc Size
11.5 inch
Finish Options
Polished, Chrome, Black Contrast Cut
Includes
Brake pads, bleeder screw, 3/8-24 banjo bolt
Origin
Made in the USA

Fitment Notes

  • Some installations may require an additional mounting bracket, verify before ordering
  • Fits 1988-2006 Harley-Davidson Softail Springer FXSTS and 1995-1997 Bad Boy FXSTSB
  • Also fits 1984-1985 Sportster 1000 XLH, Roadster XLS, and XLX variants
  • Review the Fitment tab for the complete year and model breakdown

Compatible Harley-Davidson Models

This caliper fits a narrow range of Harley-Davidson Springer Softail and early Sportster models - fitment is identical across all finish options.
YearsModelCode
Softail
1988-2006Softail SpringerFXSTS
1995-1997Softail Bad BoyFXSTSB
Sportster
1984-1985Sportster 1000XLH
1984-1985Roadster 1000XLS
1984-1985Sportster 1000 XLXXLX
Weight 1.1 lbs
Dimensions 9 × 8 × 2.5 in
Color/Finish

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