Renthal UltraLight Rear Chainwheels are CNC machined from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer. A combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal's light weight all aluminum rear sprockets can be found on the rear wheels of many factory race team machines.
The Renthal UltraLight Rear Chainwheel, part number 191U-428-51GESI, is engineered for high-performance powersports applications. Crafted from CNC-machined 7075 T6 aluminum, this sprocket offers a significant weight reduction—approximately 66% lighter than traditional steel options—without compromising strength or durability. Its lightweight design is ideal for enhancing acceleration, handling, and overall ride response, making it a popular choice among professional race teams and serious enthusiasts. The computer-engineered manufacturing process ensures an exact fit, precise concentricity, and optimized load dispersion, which translate into maximum power transfer and improved drivetrain efficiency. With advanced surface treatments, the sprocket exhibits exceptional wear resistance, extending service life even under demanding conditions. This model features tooth profiling designed for optimal engagement and smooth operation, contributing to reliable performance across various riding scenarios.
Features:
- Material: CNC machined from 7075 T6 aluminum for high strength and lightweight performance
- Weight: Approximately 66% lighter than steel sprockets, enhancing acceleration and handling
- Precision Engineering: Computer-designed for exact fit, concentricity, and load distribution
- Surface Treatment: Hardwearing coatings for extended durability and resistance to wear
- Tooth Profile: Optimized for maximum power transfer and smooth drivetrain operation
- Compatibility: Fits Kawasaki KLX140, KLX140L from 2008 to 2013 models
Fits
2008 Kawasaki KLX140
2008 Kawasaki KLX140L
2009 Kawasaki KLX140
2009 Kawasaki KLX140L
2010 Kawasaki KLX140
2010 Kawasaki KLX140L
2011 Kawasaki KLX140
2011 Kawasaki KLX140L
2012 Kawasaki KLX140
2012 Kawasaki KLX140L
2013 Kawasaki KLX140
2013 Kawasaki KLX140L
2014 Kawasaki KLX140
2014 Kawasaki KLX140L
2015 Kawasaki KLX140
2015 Kawasaki KLX140L
2016 Kawasaki KLX140
2016 Kawasaki KLX140L
2017 Kawasaki KLX140
2017 Kawasaki KLX140L
US Dollars
