ESJOT

 German precision Manufactured rear Aluminium Race Sprocket: 520 x 42 teeth

DIAMOND CUT 2.0

    25 % higher degrees of hardness in the teeth flanges

Special surface treatment with a 50 % better surface smoothness and therefore particularly quiet

   optimized tooth contour for a longer service life

   Rear Sprockets with tolerances of overall diameter and wobble of below 0.2 mm

   About 60% lighter than a conventional steel sprocket.

   Plan and concentricity of less than 0.1 mm

      Rear Sprockets with tolerances of overall diameter and wobble of below 0.2 mm

Made of high quality and high strength 7075 T6 Aluminium

OEM quality