The EK 420SR-132 is a heavy-duty, non-sealed roller chain designed for lower-horsepower dirt bikes, ATVs, and street applications. This 420-size chain provides a durable replacement solution for riders who need dependable power transfer and extended service life in demanding riding conditions. Manufactured by EK and identified by manufacturer and vendor part number 420SR-132, it is designed for applications requiring a 132-link chain.
Built as the heavy-duty version of EK's Sport Chain, the 420SR-132 uses solid bushings and solid rollers to help withstand wear and maintain consistent operation. Quad-staked riveting reinforces the chain assembly, while the large 0.20-inch pins and 0.08-inch plates contribute to an impressive 8,000-pound tensile strength. Its non-sealed design is well suited to compatible powersports applications where straightforward maintenance and efficient drivetrain performance are required.
Fitment includes select 2002–2006 Aprilia RS50 models, 2004–2005 Aprilia Tuono 50 models, 2002–2003 Aprilia RS125 models, and the 1982 Honda Z50R. Confirm the motorcycle or ATV model, year, chain size, and required link count before installation. This EK chain is supplied as a 132-link assembly and should be properly lubricated, tensioned, and inspected according to the vehicle manufacturer's service recommendations.
Features:
- Application: Designed for lower-horsepower dirt bikes, ATVs, and street motorcycles
- Construction: Heavy-duty version of the EK Sport Chain
- Bushings and Rollers: Solid bushings and solid rollers support long service life
- Riveting: Quad-staked riveting helps reinforce chain assembly strength
- Strength: Large 0.20-inch pins and 0.08-inch plates provide up to 8,000 pounds of tensile strength
- Chain Size: 420 non-sealed roller chain
- Link Count: 132 links
- Fitment: Fits select Aprilia RS50, Aprilia Tuono 50, Aprilia RS125, and 1982 Honda Z50R applications
Fitment:
1969 Honda CL70
1970 Honda CL70
1971 Honda C70M
1971 Honda CL70
1971 Honda Qa50
1971 Honda SL70
1971 Suzuki Ts50
1972 Honda CL70
1972 Honda CT70
1972 Honda Qa50
1972 Honda SL70
1972 Honda Z50A
1972 Suzuki Ts50
1973 Honda CT70
1973 Honda Qa50
1973 Honda SL70
1973 Honda Z50A
1973 Suzuki Ts50
1973 Yamaha RD60
1974 Honda CT70
1974 Honda Qa50
1974 Honda XL70
1974 Honda Z50A
1974 Suzuki Ts50
1974 Yamaha GT80
1974 Yamaha RD60
1975 Honda CT70
1975 Honda Qa50
1975 Honda XL70
1975 Honda Z50A
1975 Suzuki Ts75
1975 Yamaha GT80
1975 Yamaha RD60
1976 Honda CT70
1976 Honda XL70
1976 Honda Z50A
1976 Suzuki Ts75
1976 Yamaha GT80
1977 Honda CT70
1977 Honda XL75
1977 Honda Z50A
1977 Suzuki Ts75
1977 Yamaha GT80
1978 Honda CT70
1978 Honda XL75
1978 Honda Z50A
1978 Yamaha GT80
1979 Honda CT70
1979 Honda XL75
1979 Honda Z50R
1979 Yamaha GT80
1980 Honda XL80S
1980 Honda Z50R
1980 Yamaha GT80
1981 Honda XL80S
1981 Honda Z50R
1981 Yamaha Dt80
1982 Honda XL80S
1982 Honda Z50R
1982 Yamaha Dt80
1983 Honda XL80S
1983 Honda Z50R
1983 Yamaha Dt80
1984 Honda XL80S
1984 Honda Z50R
1985 Honda XL80S
1985 Honda Z50R
1986 Honda Z50R
1987 Honda Z50R
1988 Honda Z50R
1988 Yamaha Dt50
1989 Honda Z50R
1989 Yamaha Dt50
1990 Yamaha Dt50
1991 Honda CT70
1991 Honda Z50R
1992 Honda CT70
1992 Honda Z50R
1993 Honda CT70
1993 Honda Z50R
1994 Honda CT70
1994 Honda Z50R
1995 Honda Z50R
1996 Honda Z50R
1997 Honda Z50R
1998 Honda Z50R
1999 Honda Z50R
2002 Aprilia RS125
2002 Aprilia RS50
2003 Aprilia RS125
2003 Aprilia RS50
2004 Aprilia RS50
2004 Aprilia Tuono 50
2004 Honda CB50R Dream 50
2004 Honda NSR50
2005 Aprilia RS50
2005 Aprilia Tuono 50
2006 Aprilia RS50
2006 Honda NSF100
2007 Honda CRF150R
2007 Honda CRF150RB Expert
2008 Honda CRF150R
2008 Honda CRF150RB Expert
2009 Honda CRF150R
2009 Honda CRF150RB Expert
2012 Honda CRF150R
2012 Honda CRF150RB Expert
2013 Honda CRF150R
2013 Honda CRF150RB Expert
2014 Honda CRF150R
2014 Honda CRF150RB Expert
2015 Honda CRF150R
2015 Honda CRF150RB Expert