RC4 & RC6

aftermarket. track

Front & Rear brake upgrade

This new Alcon Big Brake Kit features the latest CAR69 and CAR70 calipers which are beautifully machined from forged alloy and have been optimized for use with the Nissan GT-R, BMW E90 M3, BMW F80 and BMW 1M.

What’s in the box

The RC4 / RC6 kits are supplied in four boxes, two for each hand, and includes all the parts that you will need:

  • Calipers
  • Disc assembly
  • Brake pads
  • Brackets and fixings
  • Rattle pins
  • Brake lines
  • Hard lines (for GTR applications only)


Our RC4 / RC6 brake kits are available for a range of vehicle applications, see specification document below for full details.

Key features and benefits

High friction pads increase stopping power

Increased pad area reduces temperatures and increases pad life

Steel staggered pistons in order to ensure even pad wear

Stainless steel pistons as standard for improved resistance to thermal conductivity

Pin mounted pads for quicker and easier pad change


2 piece forged aluminium design

High temperature seal material as used in highest levels of motorsport

RC4 disc diameter Ø330-360mm, width 28-32mm. Pad area 66.1cm2

RC6 disc diameter Ø380-410mm, width 34-36mm. Pad area 117.5cm2

Fits many 18” and larger wheels