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Wiseco High Performance Piston

4.8 (25 reviews)
Wiseco
Regular: $88.00 - $622.95 Save up to 10%!
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How To Video - Dirt Bike 4 Stroke Top End Installation

Product Details




   Wiseco High Performance Piston

This awesome Wiseco High Performance Piston kit contains all the necessary parts to give your ride a better performance. Wiseco is known has a high quality brand in the market, this piston kit is very durable and last longer than other brands. Get yours today and get it installed on your ride for your next adventure.


   Racer's Choice Piston
  • Pistons are single ring 2-stroke or 2 ring 4-stroke
  • Reduced weight and friction with increased power and throttle response
  • Service intervals may be increased over standard replacement Wiseco pistons



   Racer's Choice GP Style Piston
  • Forged from high-silicon aluminum alloy for maximum strength and dependability
  • Durability, longevity and increased horsepower
  • Longer skirt, Thicker dome, No intake window. Cylinder sleeving is required for oversized



   2-stroke Pro-Lite Piston
  • Wiseco Pro-Lite pistons feature a race-ready dome finish with smooth edges for improved combustion flow
  • Wiseco Top end gasket kit included.

Specifications and Options

Brand Wiseco
Bore Size (mm) 100, 100.0, 100.5, 101, 101.0, 101.00, 102, 102.0, 102.4, 103, 103.0, 104, 104.83, 39, 39.0, 39.5, 39.50, 40, 40.5, 41.0, 41.5, 41.50, 42.0, 43.0, 43.5, 44.0, 44.5, 45, 45.0, 46, 46.5, 47, 47.0, 47.00, 47.5, 48, 48.0, 48.5, 48.50, 49, 49.0, 49.00, 49.5, 49.50, 50, 50.0, 50.00, 50.25, 50.5, 50.50, 51.0, 51.5, 52.0, 52.00, 52.5, 52.50, 53.0, 53.00, 53.5, 53.50, 54, 54.0, 54.00, 54.25, 54.4, 54.5, 55.0, 55.5, 56, 56.0, 56.00, 56.5, 57.0, 57.5, 57.50, 58.0, 58.00, 58.50, 61, 61.0, 62, 63.0, 64, 64.0, 64.25, 64.5, 65, 65.0, 65.25, 65.5, 66, 66.0, 66.00, 66.25, 66.4, 66.40, 66.5, 66.75, 66.8, 67, 67.0, 67.00, 67.25, 67.4, 67.5, 67.50, 67.75, 68, 68.0, 68.00, 68.25, 68.5, 68.50, 69, 69.0, 69.5, 70.0, 70.5, 71.0, 71.5, 71.50, 72.0, 72.5, 73.0, 73.5, 74, 74.0, 74.5, 75.0, 75.5, 76, 76.0, 76.00, 76.5, 76.8, 77, 77.0, 77.00, 78, 78.0, 78.00, 78.5, 79.0, 79.4, 80, 80.0, 80.5, 81.0, 81.5, 82, 82.0, 82.5, 83, 83.0, 83.25, 83.5, 84, 84.0, 84.5, 85, 85.0, 85.5, 86, 86.0, 86.5, 87, 87.0, 87.5, 88, 88.0, 88.00, 88.5, 89, 89.0, 89.5, 90, 90.0, 90.5, 91, 92, 92.0, 92.5, 93, 93.0, 94.0, 94.5, 95, 95.0, 95.00, 95.5, 96, 96.0, 96.00, 97, 97.0, 97.00, 97.5, 98, 98.0, 99.2
Oversize 1.50, 2.00, 3.00, 3.50, 4.00, 0.5, 1, STD, 1.5, 2.00 mm, 1.0, 2.0, 0.6, 1.1, 1.6, 2.1, 4.0, 4.50, 5.00, .5, 79.0, 2.5, 5.0, 2.40, 3.0, 5.5, .500, 1.00 mm, 1.50 mm, 4.50 mm, 6.00 mm, 0.50 mm, 0.50mm, 2mm, 6.00, 0.25, 0.50, 0.75, 1.00, 1.10, 1.25, 1.75, 2.10, 2.25, 2.50, 5.63, Standard
Compression 10.0:1, 10.1:1, 10.2:1, 10.25:1, 10.5:1, 10.5:2, 10.6:1, 10:01, 10:1, 11.0:1, 11.1, 11.4:1, 11.5:1, 11.7:1, 11.8:1, 11:01, 11:1, 12.0:1, 12.1, 12.1:1, 12.2:1, 12.3:1, 12.4:1, 12.5:1, 12.6:1, 12.7:1, 12.8:1, 12.9:1, 12:1, 13.1:1, 13.2:1, 13.4:1, 13.5:1, 13.8"1, 13.8:1, 13.9:1, 13:1, 13:5, 14.2:1, 14.4:1, 14.5:1, 14:1, 8.2:1, 8.4:1, 8.5:1, 8.6:1, 8.7:1, 8.9:1, 9.3:1, 9.4:1, 9.7:1, 9.9:1, 9:1, N/A, Stock
Notes *Chrome Bore - Cylinder sleeving or replating required for oversizes *2756 CDM rings required for St, *Cylinder sleeving or replating required for KE100 and KM100 oversizes, *do not overbore 85cc engine, *Electrofusion Bore - Cylinder sleeving or replating required for oversizes, *Electrofusion Bore Racer’s Choice Single Ring Electra Coated, *Electrofusion bore replating required for oversizes, *Limited to Available Stock, *Must use Stock thrust washers, *Nikasil Bore - Cylinder sleeving or replating required for oversizes, *Race part only, *S-343 Cannot be used in P-Series, *SCEM Cylinder - Cylinder sleeving or replating required for oversizes, “A” Cylinder Pro-Lite *Electrofusion Bore - Cylinder sleeving or replating required for oversizes, +.75 Compression - Light Weight +1.2 Compression - 2 ring, gas ported Skirt Coated. Nikasil Bore - c, 100-101mm 102.41mm Cylinder boring required for oversizes, 1989 has Nikasil Bore - Cylinder Sleeving Required for Oversizes, 250cc Racer’s Choice Single Ring Electra Coated, 2-Valve 2WD & 4WD, 440 Overbore Cylinder sleeving and boring required, order PART #0931-0054 (88mm sleeve), 440 Overbore Cylinder sleeving required, 440cc Big Bore Piston Nikasil Bore – cylinder sleeving or replating required for oversizes, 495cc Big Bore, Skirt Coated, 495cc Big Bore. ArmorGlide skirt coated. Will not fit R models., 4-valve, 58mm Big Bore. Cylinder sleeving required for oversizes, 6.7cc Dome Volume, 8cc Dome Volume, Armor Glide, ArmorGilde Skirt Coated, ArmorGilde Skirt Coated, Gas ported, ArmorGlide, ArmorGlide skirt coated, ArmorGlide skirt coated Strutted Forging. Armor Plating. DLC Coated piston pin. Racers Choice Series, ArmorGlide skirt coated. Nikasil Bore-cylinder sleeving or replating required for oversize, Big Bore Cylinder Required, Bore & Hone, Ceramic Composite - Cylinder Sleeving Required for Oversizes, CSA Ring is Titanium Nitrided coated, Cylinder boring and replating required for oversise, Cylinder boring and replating required for oversizes, Cylinder boring and replating required for oversizes. Skirt Coated, Cylinder boring required for oversize, Cylinder boring required for oversizes, Deglaze, Deglaze / Hone, Deglazed; Hone, Double Ring, Electra Coated Single ring, ElectraCoated, Electrofusion Bore, Electrofusion Bore - Cylinder Sleeving or Replating Required for Oversizes, Fit Original Honda OEM engine only, GP 125cc Style Electra Coated *Electrofusion Bore - Cylinder sleeving or replating required for over, GP style – Electra Coated, GP Style – Electra Coated No intake window; pinned on centerline; longer skirt than stock, High Compression, High Compression, 300cc Race Only, Skirt Coated, High Compression, Nikasil Bore, Skirt Coated, High Compression, Skirt Coated, High-Compression +1.0 Skirt Coated, High-compression 66mm +.5 CR 68mm +.8 CR Skirt coated, International Bore - Cylinder sleeving or replating required for oversizes, King Quad, Liquid Cooled, Liquid Cooled *Must use Stock thrust washers, model must use S-343 piston pin, Must use 105cc cylinder for 52mm, Nikasil Bore - Cylinder Sleeving or Replating Required for Oversizes, Nikasil Bore - Cylinder Sleeving Required for Oversizes, Nikasil Bore, Skirt Coated, P8 & P12 Use S520 Wrist Pin, Power Valve Must Be Modified for.030 & Larger, Pro Lite, Pro Lite *Nikasil Bore - Cylinder sleeving or replating required for oversizes, PRO-LITE, Pro-Lite *1989 model has Nikasil Bore – Cylinder sleeving or replating required for oversizes, Pro-Lite *Boron Composite - Cylinder sleeving or replating required for oversizes, Pro-Lite *Ceramic Composite - Cylinder sleeving or replating required for oversizes, Pro-Lite *Electrofusion Bore - Cylinder sleeving or replating required for oversizes, Pro-Lite *Electrofusion Bore - Cylinder sleeving or replating required for oversizes *Limited to ava, Pro-Lite *Electrofusion Bore - Cylinder sleeving or replating required for oversizes PK kits fit 95-, Pro-Lite *Must use stock thrust washers *Cylinder resleeving or replating required for all oversizes, Pro-Lite *Nikasil Bore - Cylinder sleeving or replating required for oversizes, Pro-Lite *Nikasil Bore – Cylinder sleeving or replating required for oversizes, Pro-Lite *Power Valve must be modified for .030 and larger, Pro-Lite *Power Valve must be modified for .040 and larger, Pro-Lite *Power Valve must be modified for .040 and larger *1991 model is Ceramic - Composite Cylind, Pro-Lite *Power Valve must be modified for .040 and longer, Pro-Lite *SCEM Composite - Cylinder sleeving or replating required for oversizes, Pro-Lite *SCEM Cylinder - Cylinder sleeving or replating required for oversizes, Pro-Lite Bridged Intake Liquid Cooled, Pro-Lite Flat Top, Double Ring *Nikasil Bore - Cylinder sleeving or replating required for oversizes, Pro-Lite International bore. Not available in the U.S., Pro-Lite Liquid Cooled, Pro-Lite ñ *SCEM Composite - Cylinder sleeving or replating required for oversizes, Pro-Lite Nikasil Bore, Pro-Lite SCEM Cylinder - sleeving or replating required for oversizes, Pro-Lite Single Ring, Pro-Lite Single Ring *Electrofusion Bore - Cylinder sleeving or replating required for oversizes, Pro-Lite; Electrofusion Bore, Quad Sport *4382M06600 fits LT250 4WD 87-95 & LTF250 89-96 Will NOT fit LT250S (72mm) or LT250EF 85-, Racer’s Choice 250cc Single Ring, Racer’s Choice Flat Top Conversion. No intake window. Flat Top Conversion. Electra Coated, Racer’s choice flat-top conversion; no intake window. Pinned on centerline SCEM Cylinder - sleeving, Racer’s Choice GP Style Electra Coated, Racer’s Choice GP Style Electra Coated *Nikasil Bore - Cylinder sleeving or replating required for o, Racer’s Choice GP Style Electra Coated; no intake window; pinned on centerline, Racer’s Choice GP Style. Electra coated. No intake window. Pinned on centerline SCEM Cylinder - slee, Racer’s Choice Single Ring. Pro-Lite *Electrofusion Bore - Cylinder sleeving or replating required f, Racer’s Choice Supermini *Ceramic Composite - Cylinder sleeving or replating required for oversizes, Racer’s Choice Supermini *Must use stock thrust washers, Racer's Choice Supermini; Skirt Coated; Armor Glide and Tin Rings, Racer's Choice, Electra Coated, No Intake Window., Racer's Choice, GP Series, Electra Coated, Skirt Coated., Race's Choice. Must use Long Cranck Rod, Radial Head, Radial Head *88-90 model has Nikasil Bore - Cylinder sleeving or replating required for oversizes, Radial Head *Will not fit XL models, Reed Induction Nikasil Bore - Cyclinder sleeving or replating required for oversizes, Requires resleeving/plating of cylinder., SCEM Composite - Cylinder Sleeving Required for Oversizes, SCEM Cylinder - Cylinder Sleeving Required for Oversizes, Skirt Coated, Skirt Coated 2 Ring. Race Only. Nikasil Bore - cylinder sleeving or replating required for oversizes, Skirt Coated Bore and replating required for oversizes, Skirt coated Nikasil Bore – cylinder sleeving or replating required for oversizes, Skirt Coated, Electra Coated, Skirt Coated, Gas Ported, Skirt coated.Cylinder boring and replating required for oversizes, Skirt Coated; Domed, Standard Compression Cylinder boring & replating required for oversizes, Standard or big bore piston Cylinder re-sleeving required for big bore piston, Supermini, Twin Cylinder Pro-Lite Liquid Cooled, Will Not Fit King Cobra Model, Will not fit XR650L

Q & A

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 24 answers
Why did you choose this?
Bike Bandit Store
Decent price
Elliott C on Apr 30, 2019
It’s a quality product and about the only one available.
Paul H on Apr 13, 2019
Decent price
Elliott C on Apr 30, 2019
That's what everybody recommends. Ima find out son enough!
Cody P on Apr 19, 2019
It’s a quality product and about the only one available.
Paul H on Apr 13, 2019
If it's good enough for the pros, it's good enough for me....
Dominick P on Mar 29, 2019
maybe to help compression
joe l on Dec 29, 2018
Its a great brand I've used before and i trust it will work with 81 Yamaha.
Justin W on Aug 29, 2018
i have used wiseco pistons in all my bikes and side by sides
hyrum m on Aug 9, 2018
I ride hard and my son rides harder..... they last
Darren D on Aug 23, 2017
Very good product
Michael L on Jun 17, 2017
Wisco has great piston reputation
Ken R on May 23, 2017
I'm rebuilding my 83' kx 80 motor and it's a reasonable price for what I'm wanting to do with the bike.
Kyle B on Apr 26, 2017
most trusted
greg d on Mar 2, 2017
It was the best deal I could find for my 86 Honda Fourtrax
David D on Sep 26, 2016
That's what everybody recommends. Ima find out son enough!
Cody P on Apr 19, 2019
If it's good enough for the pros, it's good enough for me....
Dominick P on Mar 29, 2019
does this have the bearing wiht tis also
2strokebandit on Jan 10, 2013
BEST ANSWER: Thank you for your question! We have checked into this for you and show the top end needle bearing would be sold seperately. Please let us know if there is anything else we can assist you with.
Will this fit a 1979 RM80?
A shopper on Apr 20, 2018
BEST ANSWER: Thank you for your question. Yes this performance piston will fit your Suzuki RM80, please make sure to select the correct year and model so you can get the correct piston. Please let us know if there is anything else we can do for you by contacting us by email at [email protected], Live Chat or by phone toll free at 1-888-339-3888. We are always more than happy to help.
does the piston come as in the picture with all the parts shown
Forbesy on Mar 20, 2015
BEST ANSWER: Thank you for your question! Correct. The items can vary between a 4 stroke and 2 stroke bike but you would get the piston rings, circlips, pin, and piston. Please let us know if there is anything else we can assist you with.
Does the 2017 KX100 kit include the round bering inside the crank shaft hole?
gerald g on Aug 5, 2018
BEST ANSWER: Thank you for your question! This kit will not include the bearing that goes in the crank shaft hole. Please let us know if there is anything else we can do for you by contacting us by email at [email protected], Live Chat or by phone toll free at 1-888-339-3888. We are always more than happy to help.
Will this fix my Yamaha Moto 4 2wd atv 1986?
Kevin L on Jun 12, 2018
BEST ANSWER: Thank you for your question! If your Moto 4 needs a new piston, you'll also need to bore the cylinder
so the new piston will fit properly. Please look at your service manual for the bore specs or if you are unsure we suggest you consult your local Yamaha dealer. Please let us know if there is anything else we can do for you by contacting us by email at [email protected], Live Chat or by phone toll free at 1-888-339-3888. We are always more than happy to help.
I have a 2003 honda cr85r and I am not sure if the bore coating is Electra or Nikasil coated. Do you know?
Charles K on Jan 19, 2018
BEST ANSWER: Thank you for the question Charles! Most modern Powersports engines use Nikasil coating. Please let us know if there is anything else we can do for you by contacting us by email at [email protected], Live Chat or by phone toll free at 888-339-3888. We are more than happy to help.
Do you have a set that fits a Honda Shadow Sabre VT1100 Model 2004?
What benefits should I espect to obtain?

Thanks and Regards from Buenos Aires, Argentina.
Capitan on Aug 29, 2013
BEST ANSWER: Thank you for your question! We have checked into this for you and show there is not a piston offered for your machine. We do apologize as we would only be offered the OEM stock piston. Please let us know if there is anything else we can assist you with.
i have an suzuki rm 250 will the kit come with the bearing that gos around the pin and also will it raise the compresion
Quinten on Dec 20, 2012
BEST ANSWER: Thanks for your question! Top end bearings must be purchased seperately. They are not included with the piston and rings. In order to find out if this would raise the compression we would need to know the exact year of your Suzuki RM250. Please reply back by email or give us a call at 888-339-3888. We are more than happy to assist you.
Does this include the rings with the piston?
Steve on Sep 6, 2012
BEST ANSWER: Thank you for your question. Yes this kit will include rings, piston wrist pin, and circlips. Please let us know if there is anything else we can do for you by contacting us by email at [email protected], Live Chat or by phone toll free at 888-339-3888. We are more than happy to help.

Reviews

4.8 / 5.0
25 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
21
3
0
1
0
Would you recommend
Yes (25)
Would you recommend
Yes
Reccomend for 2 stroke only, not TBAG
86 YZ490, wiseco is eh I wouldn't get it for a four stroke but really only reason I bought it was because it's the only one I could find for my dinosaur. Ran good then it just backfires and wont run. I dont think it's the piston but I also haven't torn it apart. I do know compression went up and it ran smooth when it ran. Update later on.
April 28, 2019
Purchased
1 month ago
Would you recommend
Yes
GREAT SERVICE
BEING FROM ALABAMA TOOK AWHILE TO GET PARTS BUT OTHERWISE GREAT SERVICE. IMPROVED MY BIKES PROFORMANCE ALOT THANKS
March 20, 2019
Purchased
3 months ago
Would you recommend
Yes
Goes bang bang, all ya can ask for
March 17, 2019
Purchased
2 months ago
Would you recommend
Yes
Always liked there performance.
March 2, 2019
Purchased
3 months ago
Would you recommend
Yes
Exact measurements easy install
January 12, 2019
Purchased
4 months ago
Would you recommend
Yes
Quality manufacturing for the wiseco piston
November 16, 2018
Purchased
7 months ago
Would you recommend
Yes
Piston is working good for me this is my first bike and compression went from 60 to 120
June 16, 2017
Purchased
over 2 years ago
Would you recommend
Yes
Very Quick and Good Parts
The parts supplied are very precisionly made.
Plus packed very professionally.
May 23, 2017
Purchased
over 2 years ago
Would you recommend
Yes
Everything about this piston is wonderful. Make sure to messure ur cylinder before buying though. Very impressed with how it was packaged and how easy everything went together.
May 23, 2017
Purchased
over 2 years ago
Would you recommend
Yes
I recieved it very quickly and I live in Canada. It fit perfect went together perfect and now the bike runs perfect! Would get another if I had to
May 17, 2017
Purchased
over 2 years ago
Rider Reviews - Summary
Overall Review:
4.8
Write a Review

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