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-420-51GEGN, is engineered for high-performance powersports applications. Crafted from CNC-machined 7075 T6 aluminum, this rear sprocket offers a significant weight reduction—66% lighter than traditional steel counterparts—making it ideal for racing and aggressive riding. Its precise manufacturing process ensures tight tolerances, perfect fitment, and optimal load dispersion, which translate into improved power transfer and durability. The tooth profiling is optimized for maximum efficiency, allowing riders to experience enhanced acceleration and responsiveness.
Designed with durability in mind, the Renthal UltraLight sprocket incorporates advanced hardwearing surface treatments that resist wear and corrosion, extending the lifespan of the component even under demanding conditions. The lightweight construction contributes to overall bike agility, reducing unsprung weight for better handling and control. Compatible with a range of Kawasaki KX models from 1991 to 1995, including KX80, KX80 Big Wheel, KX85, and KX100, this sprocket is suitable for both competitive racing and serious trail riding.
Whether you're replacing worn-out OEM parts or upgrading for performance gains, the Renthal UltraLight Rear Chainwheel delivers reliable, race-level performance with a sleek green finish that complements your bike’s aesthetic. Easy to install and designed for maximum efficiency, this sprocket ensures your drivetrain operates smoothly and powerfully, making it a trusted choice among professional racers and enthusiasts alike.
Features:
- CNC-machined from 7075 T6 aluminum for lightweight strength
- 66% lighter than steel for improved bike agility
- Precisely engineered for tight tolerances and perfect fitment
- Optimized tooth profile for maximum power transfer
- Hardwearing surface treatments for enhanced durability
- Compatible with Kawasaki KX models from 1991-1995
- Sleek green finish for aesthetic appeal
- Designed for racing and high-performance riding
Fits
1988 Kawasaki KX80
1989 Kawasaki KX80
1990 Kawasaki KX80
1991 Kawasaki KX80
1991 Kawasaki KX80 Big Wheel
1992 Kawasaki KX80
1992 Kawasaki KX80 Big Wheel
1993 Kawasaki KX80
1993 Kawasaki KX80 Big Wheel
1994 Kawasaki KX80
1994 Kawasaki KX80 Big Wheel
1995 Kawasaki KX100
1995 Kawasaki KX80
1996 Kawasaki KX100
1996 Kawasaki KX80
1997 Kawasaki KX100
1997 Kawasaki KX80
1998 Kawasaki KX100
1998 Kawasaki KX80
1999 Kawasaki KX100
1999 Kawasaki KX80
2000 Kawasaki KX100
2000 Kawasaki KX80
2001 Kawasaki KX100
2001 Kawasaki KX85
2002 Kawasaki KX100
2002 Kawasaki KX85
2003 Kawasaki KX100
2003 Kawasaki KX85
2004 Kawasaki KX100
2004 Kawasaki KX85
2005 Kawasaki KX100
2005 Kawasaki KX85
2006 Kawasaki KX100
2006 Kawasaki KX85
2007 Kawasaki KX100
2007 Kawasaki KX85
2008 Kawasaki KX100
2008 Kawasaki KX85
2009 Kawasaki KX100
2009 Kawasaki KX85
2010 Kawasaki KX85
2011 Kawasaki KX100
2011 Kawasaki KX85
2012 Kawasaki KX100
2012 Kawasaki KX85
2013 Kawasaki KX100
2013 Kawasaki KX85
2014 Kawasaki KX100
2014 Kawasaki KX85
2015 Kawasaki KX100
2015 Kawasaki KX85
2016 Kawasaki KX100
2016 Kawasaki KX85
2017 Kawasaki KX100
2017 Kawasaki KX85
2018 Kawasaki KX85
2019 Kawasaki KX85
2020 Kawasaki KX85
2021 Kawasaki KX85
US Dollars
