EBC Motorcycle Brake Disc - MD663 - Rear - Stainless Steel

The EBC MD663 Rear Brake Disc is a precision-engineered replacement rotor for Triumph Modern Classic motorcycles. Manufactured in the UK from heat-treated and hardened DB420 stainless steel, it provides consistent, fade-resistant performance and improved longevity compared to standard mild steel OE discs.

EBC’s rotor design enhances braking efficiency by resisting warping under repeated hard stops, maintaining flatness and structural integrity over time. The rotor's precision-ground finish ensures smooth pad contact, reducing brake pad wear and delivering progressive, responsive stopping power.

Key Technical Benefits

• DB420 Stainless Steel Construction
  Heat-treated for resistance to warping, corrosion, and surface degradation, especially under sustained braking loads.

• Precision Ground Surface
  Improves pad contact uniformity, reducing vibrations and delivering consistent lever feel—especially useful in stop-start urban riding or spirited backroad braking.

• Mechanically De-Stressed
  Each rotor is stress-relieved to prevent heat-induced distortion, improving long-term reliability under repeated heat cycles.

• Direct OE Fitment
  No spacers, no guesswork—engineered to fit directly in place of your original disc for quick, confident installation.

• Lightweight Profile
  A slightly lighter design helps reduce unsprung mass at the rear wheel, subtly improving handling feel and suspension response over rough roads.

Fitment – Triumph Modern Classic & Related Models

Bonneville Series
✔ Bonneville 800 (2001–2005)
✔ Bonneville T100 800 (2003–2004)
✔ Bonneville 865 (2007–2015)
✔ Bonneville T100 865 (2005–2015)
✔ Bonneville SE 865 (2009–2013)

Scrambler Series
✔ Scrambler 865 (2006–2016)
✔ Scrambler 900 (2017)

Thruxton Series
✔ Thruxton 900 (2004–2016)
✔ Thruxton SE (2011)

Other Triumph Models
✔ Sprint RS 955 (2003–2004)
✔ Sprint ST 955 (1999–2004)
✔ Sprint ST 1050 (2005–2010)
✔ Tiger 800 / Tiger XC (2011–2015)
✔ Tiger 1050 (2007–2013)
✔ Tiger SE ABS 1050 (2013)

Why Choose EBC?

With over 60 years of brake system development and manufacturing expertise, EBC Brakes are designed and built in the UK using carefully controlled processes and premium materials. Their rotors are known for:

• Consistent braking in both dry and wet conditions

• High resistance to corrosion and surface degradation

• Compatibility with both organic and sintered pads

• Exceptional reliability for road, commuting, and touring use

EBC designs and manufactures all their brake rotors in-house, ensuring quality control far beyond the minimum OEM standards. Ideal for Triumph riders looking to maintain the classic feel of their bike while upgrading performance and longevity.