Renthal ren191U-420-50GEBK Rear Chainwheel

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 is CNC machined from 7075 T6 aluminum to tight tolerances for precise fitment, concentricity, and load dispersion. Its lightweight aluminum construction is stated to be 66% lighter than steel, helping reduce rotating mass while maintaining the performance characteristics required for powersports applications.

Computer engineering and testing support accurate tooth profiling for efficient power transfer. The chainwheel also combines a high-strength base material with advanced manufacturing methods and a hardwearing surface treatment. This Renthal rear chainwheel is identified as a black 420-50-tooth sprocket.

Key Features & Performance Benefits

• CNC-machined 7075 T6 aluminum: Provides a high-strength foundation for the rear chainwheel.
• UltraLight construction: Stated to be 66% lighter than steel for reduced weight.
• Precision engineering and testing: Supports precise fitment, concentricity, and load dispersion.
• Tooth profiling and surface treatment: Designed to support power transfer and durable service.

Key Product Specifications & Technical Data

• Brand: Renthal
• Part number: ren191U-420-50GEBK
• Product type: UltraLight rear chainwheel
• Material: 7075 T6 aluminum
• Manufacturing method: CNC machined
• Chain size: 420
• Tooth count: 50
• Color: Black

What's Included

One Renthal UltraLight rear chainwheel.

Fitment

Fits 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, and 1995 Kawasaki KX80.

Fitments:
1988 Kawasaki KX80 Base
1989 Kawasaki KX80 Base
1990 Kawasaki KX80 Base
1991 Kawasaki KX80 Base
1991 Kawasaki KX80 Big Wheel Base
1992 Kawasaki KX80 Base
1992 Kawasaki KX80 Big Wheel Base
1993 Kawasaki KX80 Base
1993 Kawasaki KX80 Big Wheel Base
1994 Kawasaki KX80 Base
1994 Kawasaki KX80 Big Wheel Base
1995 Kawasaki KX100 Base
1995 Kawasaki KX80 Base
1996 Kawasaki KX100 Base
1996 Kawasaki KX80 Base
1997 Kawasaki KX100 Base
1997 Kawasaki KX80 Base
1998 Kawasaki KX100 Base
1998 Kawasaki KX80 Base
1999 Kawasaki KX100 Base
1999 Kawasaki KX80 Base
2000 Kawasaki KX100 Base
2000 Kawasaki KX80 Base
2001 Kawasaki KX100 Base
2001 Kawasaki KX85 Base
2002 Kawasaki KX100 Base
2002 Kawasaki KX85 Base
2003 Kawasaki KX100 Base
2003 Kawasaki KX85 Base
2004 Kawasaki KX100 Base
2004 Kawasaki KX85 Base
2005 Kawasaki KX100 Base
2005 Kawasaki KX85 Base
2006 Kawasaki KX100 Base
2006 Kawasaki KX85 Base
2007 Kawasaki KX100 Base
2007 Kawasaki KX85 Base
2008 Kawasaki KX100 Base
2008 Kawasaki KX85 Base
2009 Kawasaki KX100 Base
2009 Kawasaki KX85 Base
2010 Kawasaki KX85 Base
2011 Kawasaki KX100 Base
2011 Kawasaki KX85 Base
2012 Kawasaki KX100 Base
2012 Kawasaki KX85 Base
2013 Kawasaki KX100 Base
2013 Kawasaki KX85 Base
2014 Kawasaki KX100 Base
2014 Kawasaki KX85 Base
2015 Kawasaki KX100 Base
2015 Kawasaki KX85 Base
2016 Kawasaki KX100 Base
2016 Kawasaki KX85 Base
2017 Kawasaki KX100 Base
2017 Kawasaki KX85 Base
2018 Kawasaki KX85 Base
2019 Kawasaki KX85 Base
2020 Kawasaki KX85 Base
2021 Kawasaki KX85 Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1