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ISR Front Axial Master Cylinder Brake or Clutch Integrated Reservoir Style 21-005

$369.95 $299.95
(You save $70.00)

ISR Front Axial Master Cylinder Brake or Clutch Integrated Reservoir Style 21-005

$369.95 $299.95
(You save $70.00)
SKU:
PB-21005XX
Weight:
2.00 LBS
Shipping:
Calculated at checkout
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Product Description

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, all ISR brake systems are CNC machined from aerospace quality billet aluminum and then finished with a clear coating for the ultimate in corrosion protection.  ISR has taken its experience gained in roadracing and produced beautiful CNC machined master, calipers, and rotors for the street, dirt, and custom markets as well.  ISR brake systems are a great choice for racing, street, motocross, or just that custom project.  Available in brake (RH) or clutch (LH) master cylinders and 17.5mm or 14mm bores.  Fits 25mm (1") handlebars, for 22mm (7/8")  applications you will use the spacer kit that is included when you select 22mm. 

The 21-005 integrated reservoir style front master cylinder is designed for street replacement, motocross, or custom applications.  The styling is radius edged with a rectangular reservoir which produces a simple yet powerful master cylinder with a classic look.  Not too bulky this master will give a clean and uncluttered look to the handlebars.  This particular master cylinder has a leverage adjustment, the nut on the front of the lever adjusts the angle of the piston pivot which helps to dial in a particular feel and leverage ratio.  Also available is the adjustable lever which allows adjust of the lever in relation to the handlebars.  Please Note: The 21-005 series front master cylinders come standard with a non-adjustable reach lever.  The adjustable reach lever shown in the product photos is optional and must be added. 


Two bore sizes are available, 17.5mm for dual rotor systems or 14mm for single rotor setups on brake systems.  Most clutch systems will utilize the smaller bore size.  The 21-005 series of ISR front brake master cylinders have the following specifications:
  • 17.5mm bore or 14mm bore available
  • Clutch or Brake masters available
  • 18cc reservoir capacity
  • M10 x 1.25mm banjo threads
  • 0.42kg (.93lbs) weight
  • 5.1:1 - 3.8:1 leverage ratio adjustment range
  • 22mm (7/8") and 25mm (1") handlebar size
  • Clear anodized















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