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FREE MAINLAND UK DELIVERY ON ORDERS £79+

SAME DAY DISPATCH ON ORDERS BEFORE 4PM

Piston Rings SK157FMI-G for SK125-22, SK125-8

£7.99
Availability: In Stock
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Code: PSTR029 PLU: 17746 EAN: 5057645142249 Brand: CMPO Classic Part: No Cylinder Bore Diameter: 57 mm Engine Type: 4-stroke Item Thickness: N/A Items included: Piston Ring Machine Type: Street Motorcycle Manufacturer Part Number: PSTR029 Manufacturer Warranty: 1 year Material: Steel Performance Part: No Pin Diameter: N/A Piston Diameter: 57 mm Reference OE/OEM Number: 121000101 Type: Piston Ring

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Description

"We have sold 14 of these in the last 6 months"

Piston rings are critical components in a motorcycle engine, located on the outer surface of the piston. They serve several key functions:

  • Sealing: Piston rings create a seal between the piston and the cylinder wall, preventing the escape of combustion gases into the crankcase and ensuring efficient power generation.
  • Compression: By sealing the combustion chamber, piston rings help maintain the necessary compression pressure for engine performance.
  • Oil Control: They manage the oil flow between the piston and cylinder wall, ensuring that the correct amount of oil is present for lubrication and reducing oil consumption and emissions.


    • Typically made from high-strength materials like cast iron or steel, piston rings are designed to withstand high temperatures and pressures. Proper maintenance and timely replacement of piston rings are essential for maintaining engine performance, efficiency, and longevity.

    Product Diagrams
    PISTON AND CRANKSHAFT ASSEMBLY
    Ref Item Name Price
    1 Crankshaft
    CRS071 x 1     		£0.00 Soon
    2 Kick Start Crankshaft Gear for SK125-22-E4
    GRKS008 x 1     		£17.99
    4 Piston Rings SK157FMI-G for SK125-22, SK125-8
    PSTR029 x 1     		£7.99
    5 13mm Gudgeon Pin
    GDP022 x 1     		£7.99
    6 Gudgeon Pin Clips 13mm
    GPCLP007 x 1     		£1.99
    7 Piston SK157FMI-G
    PST032 x 1     		£16.49
    9 Crankshaft Bearing 63/28RS P5 68 x 28 x 18mm
    BRG069 x 1     		£5.49
    10 Crankshaft Bearing 63/28 P5 68 x 28 x 18mm
    BRG070 x 1     		£9.49
    Compatibility
    Manufacturer Model Diagram
    Kiden Aquarius 125 [KD125-G] View parts diagram
    Aries 125 [KD125-J] View parts diagram
    Pisces 125 [KD125-K] View parts diagram
    Lexmoto Assault 125 EFI [HJ125-J-E4] View parts diagram
    Assault 125 Euro 5 [HJ125-J-E5] View parts diagram
    Assault 125 [HJ125-J] View parts diagram
    Isca 125 Euro 5 [SK125-L-E5] View parts diagram
    Isca 125 [SK125-L] View parts diagram
    Oregon 125 [HJ125-K] View parts diagram
    Venom 125 [SK125-22] View parts diagram
    Venom EFI [SK125-22-E4] View parts diagram
    Venom SE 125 [SK125-22S] View parts diagram
    Viper 125 [SK125-22A] View parts diagram
    ZSA 125 [FT125-17C] View parts diagram
    ZSB 125 EFI [SK125-8-E4] View parts diagram
    ZSB 125 Euro 5 [SK125-8-E5] View parts diagram
    ZSB 125 [SK125-8] View parts diagram
    Romet Division 125 [SK125-22 (ROMET)]
    Soft Chopper 2 [SOFTCHOPPER2]
    Zontes Firefly 125 [FIREFLY]
    Javelin 125I [JAVELIN125]
    Mantis 125 [MANTIS125]
    Rocketman 125I [ROCKETMAN125]
    Scorpion 125I [SCORPION125]
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    Tags
    #125CC MOTORCYCLE PISTON RING SET FOR SK157FMI-G #125CC PISTON RING #TOP END #BARREL #SMALL END #GUDGEON PIN #PISTON #RINGS #RING #CYLINDER #OIL #COMPRESSION #PISTON RINGS SK157FMI G FOR SK125 22 SK125 8 #PISTON RINGS