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Piston Kits

Motorcycle pistons are at the heart of engine performance, converting combustion pressure into mechanical power. Worn or damaged pistons can lead to reduced compression, excessive oil consumption and loss of performance, making replacement essential during engine rebuilds and repairs.

At OnlineMoto Parts, we stock a wide range of motorcycle pistons for Japanese and European motorcycles. Our range includes standard and oversize pistons suitable for two-stroke and four-stroke engines across a wide variety of road, off-road and racing applications.

Manufactured to high standards for durability and performance, our replacement pistons help restore engine efficiency and reliability. Use our vehicle finder to locate the correct piston for your motorcycle.

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    Standard Piston Kit Fits Yamaha RT 100 1990-2001

    DIMENSIONS = PISTON OD 52, PIN OD 14, CROWN HEIGHT 26, PISTON LENGTH 60, RING PEG POSTION 25, 2T OR 4T 2T, PORTS Y

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    Standard Piston Kit Fits Honda PX 50 1981-1986

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 J 1982-1982

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits KTM 50 Junior 2001-2001

    P/Kit Minarelli,Fantic 50,Morini(39.00mm)

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    Standard Piston Kit Fits Yamaha QT50 G 1980-1980

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT 50 1988-1992

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Suzuki CP 80 1985-1993

    DIMENSIONS = PISTON OD 49, PIN OD 12, CROWN HEIGHT 22, PISTON LENGTH 57, RING PEG POSTION 28, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Honda QR 50 1983-2000

    High-quality replacement motorcycle part OEM-compatible fitment Brand new – in stock in the UK Fast UK delivery DIMENSIONS = PISTON OD 40, PIN OD...

    View full details
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    Standard Piston Kit Fits Malaguti Grizzly 10 2001-2001

    P/Kit Minarelli,Fantic 50,Morini(39.00mm)

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    Standard Piston Kit Fits Honda NV 50 1984-1984

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Malaguti Grizzly RCX 1990-2000

    P/Kit Minarelli,Fantic 50,Morini(39.00mm)

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    Standard Piston Kit Fits Yamaha MJ 50 1982-1982

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 N 1985-1985

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 S 1986-1986

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Honda PA 50 1978-1991

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Honda PXR 50 1984-1987

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Suzuki FR 80 1975-1983

    DIMENSIONS = PISTON OD 49, PIN OD 12, CROWN HEIGHT 22, PISTON LENGTH 57, RING PEG POSTION 28, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 L 1984-1984

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Suzuki DS 80 1978-2000

    DIMENSIONS = PISTON OD 49, PIN OD 12, CROWN HEIGHT 22, PISTON LENGTH 57, RING PEG POSTION 28, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 2G 1980-1980

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits KTM 50 SX 1997-2001

    P/Kit Minarelli,Fantic 50,Morini(39.00mm)

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    Standard Piston Kit Fits Honda NU 50 1982-1982

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 K 1983-1983

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Honda NC 50 1979-1983

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Suzuki CS 80 1983-1983

    DIMENSIONS = PISTON OD 49, PIN OD 12, CROWN HEIGHT 22, PISTON LENGTH 57, RING PEG POSTION 28, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 2H 1981-1981

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Suzuki GT 185 1973-1978

    DIMENSIONS = PISTON OD 49, PIN OD 12, CROWN HEIGHT 22, PISTON LENGTH 57, RING PEG POSTION 28, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha LC 50 1980-1980

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits KTM 50 Mini 1997-2007

    P/Kit Minarelli,Fantic 50,Morini(39.00mm)

    Original price £25.99 - Original price £25.99
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    Standard Piston Kit Fits Yamaha QT50 T 1987-1987

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha PW 50 1981-2010

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Suzuki TS 100 1973-1977

    DIMENSIONS = PISTON OD 49, PIN OD 12, CROWN HEIGHT 22, PISTON LENGTH 57, RING PEG POSTION 28, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Malaguti Grizzly RCW4 2001-2001

    P/Kit Minarelli,Fantic 50,Morini(39.00mm)

    Original price £25.99 - Original price £25.99
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    Standard Piston Kit Fits Honda NX 50 1980-1982

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha MS 50 1985-1986

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Honda NS 50 1982-1982

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Yamaha QT50 F 1979-1979

    DIMENSIONS = PISTON OD 40, PIN OD 10, CROWN HEIGHT 20, PISTON LENGTH 48, RING PEG POSTION 27, 2T OR 4T 2T, PORTS N

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    Standard Piston Kit Fits Honda CA 125 1995-1999

    DIMENSIONS = PISTON OD 44, PIN OD 13, CROWN HEIGHT 14.5, PISTON LENGTH 45, RING PEG POSTION None, 2T OR 4T 4T, PORTS N

    Original price £28.99 - Original price £28.99
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    Standard Piston Kit Fits Honda CM 125 1982-1985

    DIMENSIONS = PISTON OD 44, PIN OD 13, CROWN HEIGHT 14.5, PISTON LENGTH 45, RING PEG POSTION None, 2T OR 4T 4T, PORTS N

    Original price £28.99 - Original price £28.99
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    Standard Piston Kit Fits Honda CD 125 1982-1985

    DIMENSIONS = PISTON OD 44, PIN OD 13, CROWN HEIGHT 14.5, PISTON LENGTH 45, RING PEG POSTION None, 2T OR 4T 4T, PORTS N

    Original price £28.99 - Original price £28.99
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    Standard Piston Kit Fits Honda C 90 1975-2003

    High-quality replacement motorcycle part OEM-compatible fitment Brand new – in stock in the UK Fast UK delivery DIMENSIONS = PISTON OD 47, PIN OD...

    View full details
    Original price £35.99 - Original price £35.99
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    Standard Piston Kit Fits Suzuki A 50 1969-1979

    DIMENSIONS = PISTON OD 41, PIN OD 12, CROWN HEIGHT 21.5, PISTON LENGTH 48.5, RING PEG POSTION 23, 2T OR 4T 2T, PORTS N

    Original price £28.99 - Original price £28.99
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    Standard Piston Kit Fits Honda CT 125 1982-1985

    DIMENSIONS = PISTON OD 56.5, PIN OD 15, CROWN HEIGHT 15.5, PISTON LENGTH 52, RING PEG POSTION None, 2T OR 4T 4T, PORTS N

    Original price £40.99 - Original price £40.99
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    Standard Piston Kit Fits Aeon Cobra 100 2000-2006

    P/Kit Quads 2.00 100cc 2T Models(52.00mm)

    Original price £38.99 - Original price £38.99
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    Standard Piston Kit Fits Honda SL 125 1976-1980

    DIMENSIONS = PISTON OD 56.5, PIN OD 15, CROWN HEIGHT 15.5, PISTON LENGTH 52, RING PEG POSTION None, 2T OR 4T 4T, PORTS N

    Original price £40.99 - Original price £40.99
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    Standard Piston Kit Fits Yamaha DT 250 1974-1979

    DIMENSIONS = PISTON OD 70, PIN OD 18, CROWN HEIGHT 25, PISTON LENGTH 73, RING PEG POSTION 38, 2T OR 4T 2T, PORTS Y

    Original price £36.99 - Original price £36.99
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    Standard Piston Kit Fits Suzuki LT A 50 2002-2005

    DIMENSIONS = PISTON OD 41, PIN OD 12, CROWN HEIGHT 21.5, PISTON LENGTH 48.5, RING PEG POSTION 23, 2T OR 4T 2T, PORTS N

    Original price £28.99 - Original price £28.99
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    Standard Piston Kit Fits Yamaha RD 125 1975-1989

    DIMENSIONS = PISTON OD 43, PIN OD 16, CROWN HEIGHT 27.5, PISTON LENGTH 57, RING PEG POSTION 25, 2T OR 4T 2T, PORTS N

    Original price £27.99 - Original price £27.99
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