TRW brake disc MSTR138RAC RAC - front

Part No. 23445-300


Available in 1 weeks after ordering
Delivery time from stock availability 3-5 working days

TRW is a leader when it comes to brake technology and offers motorbike brake discs for every type of motorbike and the various areas of application.

High-tech at its finest, with a cool design and ideal for racing. RAC brake discs from TRW are in a class of their own. The discs are made of high-strength, dimensionally stable steel and come with precise cross-hatching on the surface to counteract vibrations and for quick adjustment of new pads.

"RAC" brake discs from TRW are designed for sporty riding on the road as well as for use on race tracks. They come with German type approval and are approved for road traffic. Thanks to their sophisticated "RAC" contour, they've got temperature absorption and release under control. They guarantee immediate responsiveness as well as a thoroughly stable pressure point.



  • Absolutely reliable, for peak performance without compromise.
  • only for the front wheel, fits the recommended disc for the rear wheel
  • floating version with riveted sleeves, ready to assemble
  • An innovative design with lasered contour supports sporty riding in addition to balanced temperature absorption and release
  • Super light and extremely heat-resistant
  • Thermally hardened surface for longer lifespan and form stability
  • Perfect concentricity, significantly fewer vibrations and optimum adjustment of pads.
  • Very low-wear, up to 30% longer lifespan compared to conventional discs

Technical info

  • Manufactured using especially high-quality steel alloy, with utmost manufacturing precision and thoroughly precise surface hatching.
  • External diameter: 305 mm
  • Internal diameter: 181 mm
  • Hole circle: 203 mm
  • Thickness: 4.5 mm
  • Weight: 1075g
  • With German type approval

The brake discs are delivered separately (price per unit), for dual brake discs please order two units. Naturally, the brake discs can be individually combined with original brake pads or the TRW brake pads we offer.

Product type: Maintenance & Wear and tear
Variant: front
ABE Tested by Wunderlich

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