Sunstar 420 Steel Rear Sprocket

Was $22.95 - $42.95 $20.99 - $38.99 You save up to $3.96 (9%)

Rating 4.88 of 5 (4 Reviews)

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Product Information

Sunstar 420 Steel Rear Sprocket
  • Constructed of the highest-quality 1045 high-carbon steel
  • Exclusive heat treatment and quenching process for strength and durability
  • The strongest, longest-lasting steel replacement sprocket available
  • Nearly all motorcycles come equipped from the factory with this sprocket
**Note: Bike specific, item may vary from image.

**Closeouts are limited to stock on hand**
  • Item # 18217
  • SKU #
  • Mfr. Part #

FitmentView All

Honda Models

  • ATC70 : 1974, 1978–1985
  • CB1000 : 1994–1995
  • CB1100F : 1983
  • CB900F Supersport : 1981–1982
  • CBR1000F : 1991, 1993–1996
  • CBR1000F Hurricane : 1987–1988, 1990
  • CR60R : 1983–1984
  • CR80R : 1982–2002
  • CR80R Expert : 1996–2002
  • CR85R : 2003–2007
  • CR85R Expert : 2003–2007
  • CRF110F : 2013–2015
  • CRF150R : 2007–2009, 2012–2016
  • CRF150R Expert : 2007–2009, 2012–2016
  • CRF50F : 2004–2009, 2011–2015
  • CRF70F : 2004–2009, 2011–2012
  • CRF80F : 2004–2009, 2011–2013
  • CT70 : 1991–1994
  • CT90 : 1969–1979
  • Interceptor 1000 : 1984
  • TRX70 : 1986–1987
  • XL80S : 1980–1985
  • XR100R : 1995
  • XR50R : 2000–2003
  • XR70R : 1997–2003
  • XR75 : 1974
  • XR80R : 1986–1988, 1990–1991, 1993–2003
  • Z50R : 1988–1989, 1991–1999

Kawasaki Models

  • KDX50 : 2003–2006
  • KDX80 : 1986–1988
  • KLX110 : 2002–2014
  • KLX110 Monster Energy : 2009
  • KLX110L : 2010–2014
  • KLX400R : 2003
  • KLX400S : 2003
  • KLX400SR : 2003
  • KX100 : 1995–2009, 2011–2014
  • KX100 Monster Energy : 2009
  • KX60 : 1986–2003
  • KX65 : 2000–2009, 2011–2014
  • KX65 Monster Energy : 2009
  • KX80 : 1986–2000
  • KX80 Big Wheel : 1987–1994
  • KX85 : 2001–2014
  • KX85 Monster Energy : 2009

KTM Models

  • 65 SX : 1999–2014
  • 65 XC : 2008–2009

Suzuki Models

  • DR250 : 1990–1993
  • DR350 : 1990–1999
  • DR350SE : 1996–1999
  • DR-Z110 : 2003–2005
  • DR-Z250 : 2001–2007
  • DR-Z400 : 2000–2004, 2007
  • DR-Z400E : 2000–2007
  • DR-Z400S : 2000–2009, 2011–2014
  • DR-Z400SM : 2005–2009, 2013–2014
  • GSX-R50 : 1987
  • JR50 : 1986–2006
  • OR50 : 1979–1980
  • QuadRunner 50 : 1986–1987
  • RM100 : 2003–2004
  • RM125 : 1980, 1984, 1986–2007
  • RM250 : 1987–2008
  • RM250 Carmichael Edition : 2006
  • RM60 : 2003
  • RM65 : 2003–2005
  • RMX250 : 1989–1998
  • RMX450Z : 2010
  • RM-Z250 : 2007–2016
  • RM-Z450 : 2005–2016
  • RM-Z450 Carmichael Rep. : 2007

Yamaha Models

  • BW80 Big Wheel : 1990
  • DT100 : 1977–1983
  • MX100 : 1979–1983
  • PW80 : 1991–2006
  • RT100 : 1990, 1992–2000
  • TT-R110E : 2008–2009, 2011–2014
  • TT-R50E : 2006–2009, 2012, 2014
  • TT-R90 : 2000–2003
  • TT-R90E : 2003–2007

Product Reviews 1 - 4 of 4

Overall Rating: 4.88 of 5

(4 Reviews)
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What Other Riders Are Saying...

Fit

Quality

Installation

Recommend

Sunstar 420 sprocket

This sprocket was easy to install but taking the tire off and putting it back on is a hassle. Runs great and should last a while.

Thomas - October 17, 2013

(Southampton, NY)

Fit

Quality

Installation

Recommend

Sprocket that will last !

For small bore bike, this is the best sprocket you can buy, they last, various gearing choice and they are not to heavy.

AL - June 22, 2012

(MTL, QC)

Fit

Quality

Installation

Recommend

Low price & durable! Great brand.

So far this sprocket has been great. Very pleased with the SunStar brand. And a low price too!

Jesse - October 11, 2010

(Tacoma, WA)

Fit

Quality

Installation

Recommend

Sunstar Sprocket

OEM quality; made in Japan with hardened steel so it will last a long time.

Steven - August 17, 2009

(WPB, FL)