Pro X Piston Kit - 2-Stroke

• Product Details

  The MotoSport.com Pro-X Piston Kit - 2-Stroke includes one of each of the following components with the following attributes:

  Pro-X Piston:

  Important note:

  This piston is for a stock sized bore. Please measure your cylinder to check clearance before ordering.

  ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese and European engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your machine.

  Most ProX pistons come with a coating. The O.E.M. style tin-coated pistons assist the wear-in process as when you first started the bike. ProX has developed a new skirt coating that not only assists the wear-in process, but also helps reducing friction after the wear-in. The black coating is made from a delicate mix of materials and will increase performance.

  • Cast piston puts engine back to standard specs without boring or replacing cylinder.
  • Interchanges directly with O.E.M. part.
  • Piston kit comes complete with piston, rings, wrist pin and end clips.

  Wiseco Needle Bearing:

  The Wiseco Needle Bearing is a high quality replacement wrist pin bearing designed to withstand the harsh demands of racing. Wiseco built their needle bearing to meet or exceed O.E.M. specifications.

  Cometic Top End Gasket Kit:

  State-of-the-art gaskets is what Cometic has been doing since its inception in 1989. This comes from their dedication to constructing gaskets for the most demanding race circuits like AMA and NASCAR. Today's lightweight engines are producing more horsepower, higher cylinder pressure, clamp load and extreme temperatures. Cometic's commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance.

  Cometic meets the needs of each specific gasket by using materials to match. Even the basic top end gasket kit features different materials for each gasket. The head gasket is constructed from non-asbestos, flexible graphite that is laminated to a stainless steel core. The manifold and base gaskets are constructed from non-asbestos nitride rubber-bound fiber. Cometic also includes copper gaskets where needed.

  Cometic designs and builds their gaskets in the U.S.A.

  Notes:

  Order ONE KIT PER CYLINDER. Image is for reference only, actual Kit may vary based on contents and fitment.

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• Customer Reviews

• Q&A

• Fitment

• # Part Numbers

  Gasket Kit

  Product Variant	Manufacturer Part #
  0.01 Metal Head Gasket	810260
  105 SXS Kit SXS13105000	C3637
  2.0mm Overbore	W5677
  42mm Bore	C7262
  43mm	W6207, W5756
  43mm Bore	C7014
  45mm	W5932
  47-52mm	W6348
  47mm	W5889
  48mm	W6136
  49mm	W5221
  50.5mm	W6992
  50mm	W5673, W5117, W4897
  52mm	W5973
  52mm Bore	C7315
  53mm	W5674
  54.5mm	W5675, W5668
  54.5mm Bore	C3543
  54mm	W6350, W6104
  54mm Bore	C7709
  55mm	W5847, W6020, W5684, W5318
  56mm	W5966, W6127, W5965, W5964, W5349, W5165, W5270
  56mm Bore	C7694
  56mm Overbore	810431
  57.5mm Overbore	810246
  57mm	W6619, W6389
  66.4mm	W6351, W6111
  66.5mm	W5982
  67.5mm	W6354
  68.5mm	W6157
  68.5mm Bore	C7197
  68mm	W4772, W5252, W4028, W4029, W5166
  68mm Bore	C7063
  69.5mm Bore	C7350
  69mm	W5275, W5321
  71mm	W6149
  72mm	W6352, W6358, W6982
  78mm Bore	C3619
  79mm Bore	C3787
  88mm	W5121
  For use with Wiseco 646m Pistons	W5353
  Pro X Piston Kit - 2-Stroke	P400155600002, P400210600058, P400210600069, P400210600085, P400210600096, P400210600178, P400210600252, P400250600008, P400250600009, P400250600011, P400250600015, P400250600021, P400250600061/1, P400250600062, P400250600065, P400250600104, P400270600009, P400270600013, P400270600028, P400270600042, P400270600044, P400270600045, P400270600047, P400270600049, P400270600077, P400210600504, P400510600034, P400510600143, P400510600031, P400485600089, P400485600118, P400485600115/1, P400485600116, P400485600254, P400485600199, P400485600271, R2706-096, R2706-097, R4856-271, R2706-099, R2506-065, R4856-089, R4856-118, R4856-267, C7760, C7859, C7778, C7508, C7120, C7059, C7112, C7136, C7779, C7467, C3099, C7064, C7065, C7123, C7280, C7505, C7054, C7857, C7349, C7853, C7936, C3105, C7158, C7399, C7855, C7113, C7250, C7337, C7507, C7137, C7851, C3211, C7292, C7295, C3416, C7678, C7757, C7181, C7115, C7394, C7191, C3089, C7016, C7116, C7020, C7003, C7126, C7392, C7762, C7921, C7203, C7393, C7040, C7764, C7861, C7269, C3096, C7135, C7047, C7154, C7501, C7682, C7030, C7031, C7391, C7011, C7012, C7013, C7019, C7029, C7042, C7043, C7046, C7058, C7087, C7089, C7098, C7099, C7108, C7133, C7242, C7251, C7257, C7258, C7259, C7268, C7285, C7333, C7384, C7416, C7423, C7456, C7816, C7386, C7942, C7943, C3222, C7009, C7010, 35.111, 35.1112, 35.1113, 35.1115, 35.1207, 35.121, 35.1218, 35.122, 35.1223, 35.1224, 35.1225, 35.1306, 35.1308, 35.1309, 35.1312, 35.1322, 35.1325, 35.1386, 35.1405, 35.1409, 35.2008, 35.2113, 35.2122, 35.2129, 35.2214, 35.2218, 35.2222, 35.2225, 35.2308, 35.2312, 35.2315, 35.2317, 35.2319, 35.232, 35.3001, 35.3111, 35.3122, 35.318, 35.3209, 35.321, 35.3211, 35.3212, 35.3218, 35.3224, 35.331, 35.3311, 35.3316, 35.3319, 35.3321, 35.3322, 35.3323, 35.3326, 35.333, 35.3335, 35.4021, 35.411, 35.4111, 35.4118, 35.4121, 35.4124, 35.4125, 35.4189, 35.4198, 35.4212, 35.4215, 35.4221, 35.4223, 35.4285, 35.431, 35.4312, 35.4313, 35.4314, 35.4315, 35.4350, 35.4409, 35.6011, 35.6012, 35.6018, 35.6019, 35.6103, 35.6113, 35.6118, 35.6216, 35.6218, 35.622, 35.6222, 35.6227, 35.6248, 35.6253, 35.631, 35.6317, 35.6323, 35.6325, 35.634, 35.6344, 35.6345, 35.6346, 35.6348, 35.7220, 35.7313, 35.7323, 35.4100.90, 35.6225, 35.6024, 35.6354, 35.6223, 810641, 810670, 810505, 810414, 810483, 810411, 810337, 810340, 810333, 810370, 810237, 810211, 810315, 8100024, 810550, 810212, 810548, 810587, 810589, 810593, 810504, 810505, 810615, 810659, 810639, 810641, 810636, 810637, 810669, 810670, 810666, 810668, 810613, 810614, 8100022, 810239, 810243, 810333, 810335, 810244, 810330, 810370, 8100009, 810337, 810338, 810340, 810236, 810440, 810416, 810261, 810484, 810411, 810429, 810430, 810425, 810427, 810464, 810465, 810457, 810264, 810470, 810407, 810412, 810414, 810483, 810308, 810259, 810309, 810304, 810319, 810300, 810327, 810325, 810324, 810206, 810306, 810307, 810314, 810312, 810302, 810235, 810257, 810273, 810405, 810409, 810410, 810424, 810428, 810442, 810456, 810547, 810579, 810580, 810581, 810582, 810583, 810664, 810665, 810976, 8100060, 810205, 810233, 810249, 810250, 810251, 810252, 810253, 810254, 810255, 810256, 810271, 810272, 810404, 810406, 810441, 810455, 810474, 810543, 810544, 810545, 810569, 810575, 810576, 810577, 810663, 810814, 810849, 810850, 8100051, 8100071, 8100072, 8100078, 8100079
  Stock	C3740, C3636, C3623, C3606, C3607, C3731, W6969, W5319, W5223, W6278, W5455, W5985, W6935, W5465, W6253, W6324, W5350, W5277, W5273, W6934, W5972, W6141, W5908, W6144, W6904, W6810, W6943, W5422, W5980, W6254, W6384, W6385, W5899, W5431, W5261, W5981, W6140, W6331, W5420, W6279, W5978, W6276, W5983, W5456, W5901, W5666, W5760, W6622, W6256, W5664, W5518, W5741, W5529, W5560, W5744, W6259, W5905, W5906, W6633, W5907, W6983, W7042, W7062
  Stock Bore	W6979, W6994, W4773, W5271, W4896, W5320, W5120, W5276, W5327, W5328, W5316-CL77, W5278, W5262, W6646, W5470, W5658, W4895, W5225, W5694, W5168, W5520
  With Valve Cover Gasket	P400210600065
  Without Valve Cover Gasket	P400250600069

  Needle Bearing

  Product Variant	Manufacturer Part #
  Pro X Piston Kit - 2-Stroke	B1000, B1001, B1003, B1004, B1006, B1008, B1012, B1013, B1014, B1016, B1022, B1036, B1038, B1041, B1043, B1080, B1082, B1037, B1042

  Piston

  Product Variant	Manufacturer Part #
  A Piston / 53.95mm	01.2232.A
  B Piston / 53.96mm	01.2232.B
  C Piston / 53.97mm	01.2232.C
  Oversized / 47.5mm / +.50mm	01.2008.050
  Oversized / 48mm / +1.00mm	01.2008.100
  Oversized / 49mm / +1.50mm	01.3111.150
  Oversized / 50.5mm / +.50mm	01.3180.050
  Oversized / 51.5mm / +1.50mm	01.3180.150
  Oversized / 51mm / +1.00mm	01.3180.100
  Oversized / 66.5mm / +.50mm	01.1300.050, 01.1309.050, 01.4286.050
  Oversized / 67.5mm / +1.50mm	01.1300.150, 01.1309.150, 01.4286.150
  Oversized / 67mm / +1.00mm	01.1300.100, 01.1309.100, 01.4286.100
  Oversized / 68mm / +2.00mm	01.1300.200, 01.1309.200, 01.4286.200
  Oversized / 89.25mm / +.25mm	01.1408.025
  Oversized / 89.5mm / +.50mm	01.1408.050
  Oversized / 89.75mm / +.75mm	01.1408.075
  Oversized / 90.25mm / +1.25mm	01.1408.125
  Oversized / 90.5mm / +1.50mm	01.1408.150
  Oversized / 90mm / +1.00mm	01.1408.100
  Oversized / 91mm / +2.00mm	01.1408.200
  Stock	01.1111.B, 01.1113.B, 01.1208.A2, 01.1218.A2, 01.1225.B, 01.1315.A1, 01.1320.A1, 01.1323.B, 01.1325.A1, 01.1408.000, 01.4022.B, 01.4108.B, 01.4221.B, 01.4223.B, 01.4285.B, 01.4322.B, 01.4408.B, 01.6012.B, 01.6022.B, 01.6029.B, 01.6219.B, 01.6226.B, 01.6220.B, 01.6228.B, 01.6322.B, 01.6343.B, 01.6394.B, 01.3111.000, 01.3122.B, 01.3214.B, 01.3220.B, 01.3224.B, 01.3310.B, 01.3320.B, 01.2114.B, 01.2215.B, 01.2224.B, 01.2225.B, 01.2314.B, 01.2321.B, 01.1309.000, 01.1300.000, 01.3180.000, 01.3001.000
  Stock Bore / 39.46mm / A	01.6012.A, 01.6019.A
  Stock Bore / 39.47mm / B	01.6019.B
  Stock Bore / 39.48mm / C	01.6012.C, 01.6019.C
  Stock Bore / 42.95mm / A	01.4100.A
  Stock Bore / 44.45mm / A	01.4022.A
  Stock Bore / 44.47mm / C	01.4022.C
  Stock Bore / 44.48mm / D	01.4022.D
  Stock Bore / 44.96mm / A	01.6022.A, 01.6029.A
  Stock Bore / 44.98mm / C	01.6022.C, 01.6029.C
  Stock Bore / 44.99mm / D	01.6029.D
  Stock Bore / 45.94mm / B	01.2107.B
  Stock Bore / 45.95mm / B	01.1110.B
  Stock Bore / 45.95mm / C	01.2107.C
  Stock Bore / 45.96mm / C	01.1110.C
  Stock Bore / 45.96mm / D	01.2107.D
  Stock Bore / 46.95mm / A	01.4118.A, 01.6105.A
  Stock Bore / 46.95mm / C	01.2109.C
  Stock Bore / 46.96mm / B	01.6105.B, 01.4118.B
  Stock Bore / 46.96mm / C	01.1111.C
  Stock Bore / 46.96mm / D	01.2109.D
  Stock Bore / 46.97mm / C	01.4118.C, 01.6105.C
  Stock Bore / 46.98mm / D	01.4118.D, 01.6105.D
  Stock Bore / 47.44mm / A	01.2114.A
  Stock Bore / 47.46mm / C	01.1113.C, 01.2114.C
  Stock Bore / 47.94mm / A	01.3122.A, 01.4108.A
  Stock Bore / 47.96mm / C	01.3122.C, 01.4108.C
  Stock Bore / 47.97mm / D	01.4108.D
  Stock Bore / 47mm	01.2008.000
  Stock Bore / 48.45mm / A	01.4121.A, 01.4124.A
  Stock Bore / 48.46mm / B	01.4121.B, 01.4124.B
  Stock Bore / 48.47mm / C	01.4121.C, 01.4124.C
  Stock Bore / 52.45mm / A	01.4194.A, 01.4195.A
  Stock Bore / 52.46mm / B	01.4194.B, 01.4195.B
  Stock Bore / 52.47mm / C	01.4194.C, 01.4195.C
  Stock Bore / 53.93mm / A	01.1208.A
  Stock Bore / 53.94mm / A	01.1208.A1, 01.1218.A1, 01.1222.A, 01.1225.A, 01.2215.A, 01.2224.A, 01.3214.A, 01.3220.A, 01.6216.A, 01.6220.A, 01.6226.A
  Stock Bore / 53.95mm / A	01.2217.A, 01.2225.A, 01.3224.A, 01.4216.A, 01.4223.A
  Stock Bore / 53.95mm / B	01.1222.B, 01.4213.B, 01.6216.B
  Stock Bore / 53.96mm / A	01.4218.A, 01.4221.A
  Stock Bore / 53.96mm / B	01.2217.B
  Stock Bore / 53.96mm / C	01.1208.A3, 01.1218.A3, 01.1222.C, 01.1225.C, 01.2215.C, 01.2224.C, 01.3214.C, 01.3220.C, 01.4210.C, 01.4213.C, 01.6216.C, 01.6220.C, 01.6226.C
  Stock Bore / 53.97mm / C	01.2217.C, 01.2225.C, 01.3224.C, 01.4216.C, 01.4223.C
  Stock Bore / 53.97mm / D	01.1218.A4, 01.1222.D, 01.1225.D, 01.2224.D, 01.3214.D, 01.3220.D, 01.4213.D, 01.6216.D, 01.6220.D, 01.6226.D
  Stock Bore / 53.98mm / C	01.4218.C, 01.4221.C
  Stock Bore / 53.98mm / D	01.2217.D, 01.2225.D, 01.4216.D
  Stock Bore / 53.99mm / D	01.4218.D
  Stock Bore / 54.19mm / A	01.6219.A
  Stock Bore / 54.21mm / C	01.6219.C
  Stock Bore / 54.22mm / D	01.6219.D
  Stock Bore / 55.94mm / A	01.6228.A
  Stock Bore / 55.96mm / C	01.6228.C
  Stock Bore / 55.97mm / D	01.6228.D
  Stock Bore / 55.98mm / E	01.6228.E
  Stock Bore / 57.94mm / A	01.6237.A, 01.6241.A
  Stock Bore / 57.95mm / B	01.6237.B, 01.6241.B
  Stock Bore / 57.96mm / C	01.6237.C, 01.6241.C
  Stock Bore / 63.95mm / B	01.6249.B
  Stock Bore / 63.96mm / C	01.6249.C
  Stock Bore / 63.97mm / D	01.6249.D
  Stock Bore / 65.94mm / A	01.4285.A
  Stock Bore / 65.96mm / C	01.4285.C
  Stock Bore / 65.97mm / D	01.4285.D
  Stock Bore / 66.33mm / A	01.7307.A
  Stock Bore / 66.34mm / A	01.1315.A, 01.1320.A, 01.1323.A, 01.1325.A, 01.3320.A, 01.6319.A, 01.6322.A, 01.6343.A, 01.7313.A
  Stock Bore / 66.34mm / B	01.7307.B
  Stock Bore / 66.35mm / A	01.2321.A
  Stock Bore / 66.35mm / B	01.6319.B, 01.7313.B
  Stock Bore / 66.35mm / C	01.7307.C
  Stock Bore / 66.36mm / B	01.1315.A2, 01.1320.A2, 01.1325.A2
  Stock Bore / 66.36mm / C	01.1323.C, 01.3320.C, 01.4322.C, 01.4325.C, 01.6319.C, 01.6322.C, 01.6343.C, 01.7313.C
  Stock Bore / 66.37mm / B	01.1315.A3
  Stock Bore / 66.37mm / C	01.1320.A3, 01.1325.A3, 01.2321.C
  Stock Bore / 66.37mm / D	01.4322.D, 01.4325.D, 01.6343.D
  Stock Bore / 66.38mm / D	01.1315.A4, 01.2321.D
  Stock Bore / 66.94mm / A	01.3311.B
  Stock Bore / 66.95mm / C	01.3310.C, 01.3311.C
  Stock Bore / 66.96mm / D	01.3310.D, 01.3311.D
  Stock Bore / 66.97mm / E	01.3310.E
  Stock Bore / 67.36mm / C	01.4306.C
  Stock Bore / 67.44mm / A	01.6317.A
  Stock Bore / 67.45mm / B	01.6317.B
  Stock Bore / 67.46mm / C	01.6317.C
  Stock Bore / 71.94mm / A	01.6387.A, 01.6388.A, 01.6396.A, 01.7300.A, 01.7398.A
  Stock Bore / 71.95mm / B	01.6387.B, 01.6388.B, 01.6396.B, 01.7300.B, 01.7398.B
  Stock Bore / 71.96mm / C	01.6387.C, 01.6388.C, 01.6394.C, 01.6396.C, 01.7300.C, 01.7398.C
  Stock Bore / 77.94mm / A	01.6397.A
  Stock Bore / 77.95mm / B	01.6397.B
  Stock Bore / 77.96mm / C	01.6397.C
  Stock Bore / 78.95mm / A / 13.6:1	01.6341.A
  Stock Bore / 78.96mm / B / 13.6:1	01.6341.B
  Stock Bore / 78.97mm / C / 13.6:1	01.6341.C
  Stock Bore / 85.94mm / A	01.4408.A

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