ISR Brakes from Sweden are very high quality and rugged systems designed for top racers who demand the best performance and durability from their brake systems.  Race proven, ISR brakes are modular designed to promote easy replacement of individual parts at the racetrack.  This not only saves time but saves you money.  All ISR brake systems are CNC machined from aerospace quality billet aluminum and then finished with a clear coating.  ISR brake systems are a great choice for racing, street, or that custom project. 


The 21-010 rear brake master cylinder is specifically designed for racing or endurance racing applications.  It is also perfect for street or custom applications.  The rear master cylinders come in three different body styles and either integrated or remote reservoir type.   The outlet is available at 90 degrees to the axis of piston travel or co-axial to the piston travel.  The reservoir inlets can be positioned perpendicular to the body or axial to the master cylinder body.  


The 21-010 family of ISR front brake master cylinders have the following specifications:

• 14mm bore size
• Maximum allowed stroke 14mm or 18mm
• Maximum displaced volume 1.8cc's or 2.5cc's
  
• Fluid outlet perpendicular or axial to the piston travel
  
• 11cc reservoir capacity (for integrated reservoir 21-010-OE)
• 22cc reservoir capacity (tube style reservoir 21-010-OA to OD)
  
• M10 x 1.25mm banjo threads
• 0.12kg (.26lbs) weight

PDF Downloads

ISR 21-010 catalog pages