50cc Scooter Piston Rings 139QMA 139QMB
PSTR015
£7.49
50cc Scooter Piston Rings 139QMA 139QMB

£7.49

Code: PSTR015 PLU: 10229 EAN: 5057645141778 Brand: CMPO Classic Part: No Cylinder Bore Diameter: 39 mm Engine Type: 4-stroke Item Thickness: N/A Items included: Piston Ring Machine Type: Scooter Manufacturer Part Number: PSTR015 Manufacturer Warranty: 1 year Material: Steel Performance Part: No Pin Diameter: N/A Piston Diameter: 39 mm Reference OE/OEM Number: 121000035 Type: Piston Ring
Description

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.

    Compatibility
    Manufacturer Model Diagram
    AJS Modena 50 [ZN50QT-27]
    Alisze FX50 50 CDI [YY50QT-15(ALISZE)]
    Jazy 50 CDI [YY50QT-21(ALISZE)]
    Axory Rallox [JSD50QT-13(AXORY)]
    BTM BT49QT-9
    BT49QT-12
    Sprint
    Baotian Apollo 10 [BT49QT-9(A10)]
    Apollo 12 [BT49QT-9(A12)]
    BT49QT-9
    BT49QT-12
    BT49QT-20B2
    BT49QT-20BB
    BT50QT-9
    Chase 49 [BT49QT-7]
    Eagle 50 [BT49QT-9F3]
    Eagle 50 GT [BT49QT-9F3(GT)]
    Monza 50 [BT49QT-21A3]
    Rebel 49 [BT49QT-12C1]
    Rocky [BT49QT-12E1]
    Scout 50
    Tanco 50 2
    Tommy 50 [BT49QT-11]
    Beeline Veloce GT Race
    Veloce GT [VELOCEGT]
    Benero BT49QT-9
    Benzhou YY50QT
    YY50QT-10
    YY50QT-14
    YY50QT-15
    YY50QT-21
    CTM CTM50QT-7
    Chituma CTM50QT-7
    Direct Bikes 50cc Milan E3 [DB50QT-30A]
    50cc Ninja
    50cc Ninja E3 [DB50QT-15B]
    50cc Retro
    50cc Scorpion E3 [DB50QT-32A]
    50cc Sports
    50cc Tommy E3 [DB50QT-E]
    50cc Viper
    50cc Viper E3 [DB50QT-32]
    DB50QT-16
    Eurocka MATADOR 50 4T LED [JJ50QT-17(EUROCKA)]
    Flex Tech Cityliner 50 [BT50QT-9(FLEX TECH)]
    Firenze 25/50 [YY50QT-21(FT)]
    Hurrican X2 [JL50QT-4(FLEX TECH)]
    Jive [BT49QT-11(FLEX TECH)]
    Panter I [JL50QT-4(FT)]
    Sprint 50 [BT49QT-9(FLEX TECH)]
    Topdrive 50 [YY50QT-14(FT)]
    VRR-50 [YY50QT-10C]
    Venus II [HT50QT-6(FLEX TECH)]
    Guoben Madness 50 [LB50QT-21]
    Haizhimeng GP1 (4 Stroke)
    LB50QT-21
    Hanglong HL50QT-16
    LB50QT-16
    LB50QT-21
    Haotian Bubble 50 [HT50QT-9]
    Huatian HT50QT-10
    HT50QT-16
    Sport 50cc
    IMF Industrie New Pach 51 [NEWPACH51]
    Pach 51 [PACH51]
    Two 4 [TWO4]
    JMSTAR JSD50QT-13
    Jack Fox City Star [YY50QT(JF)]
    Retro Cruiser [YY50QT-21(JF)]
    Retro Star [YY50QT-15(JF)]
    Jiajue MATADOR 50 [JJ50QT-17A]
    Revenge [JJ50QT-3]
    Revenge [JJ50QT-3(A)]
    Jinlun JL50QT-5
    JL50QT-6
    JL50QT-7
    Jonway Agility 50 [YY50QT-6]
    Madness 50 [YY50QT-31]
    Keeway HURRICANE 50 (4T) [HURRICANE (4T)]
    Leike 50GY-2
    Lexmoto Aspire 50 E4 [TD50Q-2] View parts diagram
    Echo 50 E4 [LJ50QT-5L] View parts diagram
    Echo 50 Euro 5 [LJ50QT-9L-E5] View parts diagram
    Echo 50 [LJ50QT-3L] View parts diagram
    FM 50 [WY50QT-111] View parts diagram
    FMR 50 [WY50QT-58R]
    Flash 50
    Hunter 50 E4 [TD50Q-E4] View parts diagram
    Hunter 50 [TD50Q] View parts diagram
    Milano 50 [FT50QT-27] View parts diagram
    Molly 50 [DFE50QT-3]
    Scout 49 [BT49QT-9LEX] View parts diagram
    Tommy 50
    Tommy 50 [ZN50QT-E]
    Tornado 50
    Valencia 50 [ZN50QT-K] View parts diagram
    Lifan Aero 50 (4T) [LF50QT-26]
    Jet 50 [LF50QT-2A]
    LF50QT-8D
    Lingben LB50QT-21
    Lintex HT50QT-12
    HT50QT-16
    HT50QT-33
    Longjia LJ50QT-3L
    LJ50QT-3M
    LJ50QT-9L
    MKS Ecobike Panter I [BT50QT-9(MKS)]
    Moto Zeta Rally 50 SC [RALLYSC]
    Nova Motors City Star [YY50QT(NM)]
    Retro Cruiser [YY50QT-21(NM)]
    Retro Star [YY50QT-15(NM)]
    Peugeot V-Clic [V-CLIC]
    Pulse Force 4T [BT49QT-20BB]
    Force 50 [HT50QT-36]
    Lightspeed 2 50 [WY50QT-58]
    Lightspeed 50 [HT50QT-25]
    Phantom 50 [ZN50QT-32A]
    Rage 50 [LK50GY-2]
    Rhythm 50 [SB50QT-16]
    Scout 49 View parts diagram
    Storm 50 [HT50QT-6]
    Tanco 49
    Tanco 50
    Zoom 50 [HT50QT-7]
    Qingqi QM50QT-6A
    Razzo Tanco 50
    Recto Retro
    Rex RS450
    Rhon Phantom [LH50QT-9]
    Sanben Tornado 50 [SB50QT-16(B08)]
    Scooter Devil Blue Dragon 50-4T [YB50QT-21(SD)]
    Cruiser 50-4T [BQ50QT-40]
    Mosquito 50-4T [YY50QT(SD)]
    Warrior 50 [BQ50QT-21]
    Sinnis Falcon 50 [QM50QT-2]
    Skygo Top 1
    Urban
    Star Quad JL50QT-5
    Sukida Lutetia [SK50QT-19]
    Roma [SK50QT-9]
    Top 1 [SK50QT]
    Viper 50 [SK50QT-21]
    Superbyke MPED 50
    Tamoretti Retro 50
    UM Commando Classic 125 [UM125-CL] View parts diagram
    Viarelli Sprint
    WK Bikes Bellissima 50 [HT50QT-12]
    GO50 [JJ50QT-3(WK)]
    Mii 50 [HT50QT-33(WK)]
    WASP 50 [JJ50QT-17(WK)]
    Wangye WY50QT-16
    WY50QT-16(B08)
    Xingyue Phoenix 50 [LLX50QT]
    Yamati GP1 (4T) [HZM50QT-16 4T]
    Yiben Hurricane 50 [YB50QT-9]
    Scout 50 [YB50QT-3]
    Storm 50 [YB50QT-6]
    YB50QT-21
    Zennco Matrix
    Zhongyu ZY125-2
    Zing Bikes Echo 50cc [LF50QT-8D]
    Zipp Triad
    Znen Flash 50 [ZN50QT-15A]
    Speedy Streetfighter
    Tommy 50 [ZN50QT-A]
    ZN50QT-11
    ZN50QT-E
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