Renthal Ultralight Grooved Rear Sprocket

• All rear sprockets are the ultralight design, making them 66 percent lighter than steel, yet incredibly durable
  
• They are CNC-machined from a specially enhanced 7075-T6 aluminum alloy
• Machined self-cleaning mud grooves at each tooth to help increase wear resistance
• This sprocket will provide maximum power transfer and long-life
  

Renthal Ultralight™ rear chainwheels are manufactured to extremely tight tolerances from  7075 T6 aluminium alloy which is 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life. Renthal's combination of a high strength base material and exceptionally hardwearing surface result in significantly increased chainwheel life over other brands. Grooved chain-wheels have cut outs at the bottom of the tooth to allow the escape of mud that would otherwise be trapped between the chain-wheel and the chain. Allowing the easy escape of the mud prevents tension being placed on the chain and the resulting accelerated wear.