GMA Engineering 4-Piston Millennium Rear Brake Calipers 11.5″ For 1987-2007 Harley-Davidson

GMA Engineering 4-Piston Millennium Rear Brake Calipers 11.5″ For 1987-2007 Harley-Davidson

Stopping power that matches your engine deserves hardware built to the same standard. GMA Engineering’s Millennium rear calipers bring genuine four-piston bite to your Softail or Touring platform — delivering the confident, progressive braking feel that stock single-piston units simply cannot replicate on a serious build.

Key Features

• Four-piston design delivers increased clamping force and more progressive braking response compared to stock single-piston units
• Part of GMA’s “M” Series Millennium caliper line
• For use with 11.5″ rotors
• Available in smooth black and smooth chrome finishes
• Machined and manufactured in the U.S.A.

Technical Specifications

• Piston Count: 4
• Series: GMA “M” Series Millennium
• Rotor Compatibility: 11.5″
• Material: 6061-T6 aluminum
• Position: Rear
• Available Finishes: Smooth Black / Smooth Chrome
• Manufactured: U.S.A.

Fitment Notes

• Three distinct model-specific versions are available — confirm your year, model, and model code before selecting
• 2000–2007 FLST fitment excludes the 2007 FLSTF
• FLHR/FLHT/FLTR fitment requires the dedicated Touring variant (GMA-FLTMSB / GMA-FLTMSC) — not interchangeable with the Softail variants
• Review the Fitment tab for complete year and model breakdown