ProX Steel Rear Sprocket YFZ450R + YFM700R -38T

ProX Racing Parts Ultra-Light steel rear sprockets all manufactured from premium quality ?Qste 420 & 460? high strength steel and offer superior durability, even under the most extreme riding circumstances and will last 2-3 times longer than aluminum sprockets made from T7075-T6.

• Manufactured from high grade 7075-T6 material
• Precision cut on fully automated CNC machines using strict tolerances which guarantees perfect fit
• The sprockets come with self-cleaning mug grooves
• Unlike many other rear sprockets, the specially designed mud grooves are positioned outside the pressure area of chains and sprocket to significantly increase durability