Wiseco Pro-Lite 2-Stroke Piston

$87.99 - $262.99
$53.77 - $161.59
4.90 5 60
4.90 out of 5 stars
Fitment Expert:
Dirt Bike Dirt Bike ATV Make Year Model
 
Wiseco Pro-Lite 2-Stroke Piston
Wiseco Pro-Lite 2-Stroke Piston
  • Description
  • Reviews (60)
  • Q&A (45)
  • Fitment

Wiseco leads the performance aftermarket by producing the highest quality forged pistons in the U.S.A. Wiseco is unique because they forge all of their own pistons in-house, and produce all of their own forge tooling in the U.S.A. This allows Wiseco to control all aspects of their manufacturing process from raw bar to skirt coating on the finished parts.

  • Much stronger than stock. Forged using the highest quality materials available resulting in a piston that provides excellent performance and durability.
  • Tight tolerances for quiet running. Featuring a race-ready dome finish with smooth edges for improved combustion flow.
  • More hours with peak performance between piston changes. The rings, wrist pin, and circlips are manufactured by Wiseco under their strict quality standards to make sure every piston kit fits correctly, ensuring top performance and long-lasting durability are achieved.
  • The Wiseco Pro-Lite Piston includes: piston, ring(s), wrist pin, and circlips.
  • Note: Oversize piston requires cylinder sleeving and top end bearing not included in kit.

Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable, and will stand up to the abuse that high performance motorsport applications require. Most castings are brittle, have no grain structure and tend to fail catastrophically when the material yield strength is exceeded. Forgings have condensed grain that is aligned to the features of the part, which produces higher mechanical properties, and resistance to impact and fatigue. Each forging is designed to optimize the strength-to-weight ratio, and maximize performance.

Note: Image is for reference ONLY, actual contents will vary based on fitment.

4.9 out of 5 stars (60)
4.9 out of 5 stars
5 star   57
4 star   6
3 star   1
2 star   1
1 star   1
See Terms and Conditions
1-10 of 60
Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Fredericksburg, VA, USA
Wiseco is always spot on

I've used Wiseco products for over 30 years with excellent quality. Motosport was able to get me the products quick to enable me to get roosting quicker.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: North Carolina, USA
Gary
You won't be disappointed

Great product and quality. Fast service thank you Motorsports.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Pleasant Prairie, WI, USA
yz450rider
Pro lite piston 2 stroke

Put one in my kids yz85. With polishing the exhaust port
and roughing up intake ports.and tunnel,it made a big
difference on bottom end power.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: San Francisco, CA, USA
MrLee
Sweet

Best bang for your buck! everything included in what is needed!

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: New Lenox, IL, USA
awesomehonda
Great piston!

installed this on my 2001 cr125 and it has a ton more power. easy to install. just make sure to let the bike warm up. or idle around before you go ripping!

Overall 5 out of 5 stars
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Arkansas, USA
Snowman294
Just what you expect from Wiseco

Just installed the Wiseco standard bore piston kit in my 2004 RM125. It was fairly easy to install, and the quality of the product is evident as soon as you take it out of the box. My bike is back to its old snappy, revy self again! Thanks Wiseco, and thanks MotoSport!

Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
ammohog01
Good Piston

I just installed this piston in my 04 CR250. It is alive and fast as ever. Everything went together well and was easy to install. The only complaint is you get a little piston slap every once and a while, but that is it. The bike is fast and runs great. As always customer service at motosport.com is awesome.

Wiseco Pro-Lite 2-Stroke Piston
Overall 5 out of 5 stars
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Mesa, AZ, USA
blu119

Awesome shipping time, Awesome performace I have used wiseco many times and i've never been dissapointed....Motosport is by far the best online store to use

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
zx613
Piston

Great product awesome piston and my daughter loved the lined bag it came in

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
yingyang

Great product . Fit like it's supposed to.

1-10 of 60
Total Questions (45)
Questions with answers:
  45
Questions without answers:
0
Jumpinjack117 Location: NJ
OEM size?...
Chandler
1-10 of 45
Tyler 3 months 14 days ago Location: Pennsylvania
What size piston do I need?
I have a piston that is 66.94mm I am not sure what oversize piston I should order.
MotoSport Staff Expert
3 months 13 days ago
MotoSportExpert
The following are the options that Wiseco offers for the Yamaha Blaster. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
573M06600 - 66.00mm STD
573M06625 - 66.25mm 0.25mm
573M06650 - 66.50mm 0.50mm
573M06675 - 66.75mm 0.75mm
573M06700 - 67.00mm 1.00mm
573M06725 - 67.25mm 1.25mm
573M06750 - 67.50mm 1.50mm
573M06775 - 67.75mm 1.75mm
573M06800 - 68.00mm 2.00mm
573M06825 - 68.25mm 2.25mm

http://www.wiseco.com/ProductSearch.aspx
Jumpinjack117 3 months 29 days ago Location: NJ
What bearings are not included?
Stock motor has no compression and will not idle, I'm going to install your top end kit but do I need to order anything else to do repair besides gaskets, I e bearings?
Expert MotoSport Staff
3 months 29 days ago
MotoSportExpert
The Wiseco Pro-Lite Piston includes: piston, ring(s), wrist pin, and circlips. The kit would not include the wrist pin bearing which can be found here: http://www.motosport.com/wiseco-needle-bearing
4 days 8 hours ago Location: Fredericksburg, VA, USA
You should order a new wrist pin bearing any time you change the piston.
Chandler Over 9 months ago
OEM size?
Will it send the OEM size piston for my 1998 kx125? It says that this piston is 77mm. It would send the correct size right?
MotoSport Staff Expert
Over 9 months ago
MotoSportExpert
Yes. Just be sure to correctly select the Year/Make/Model of your bike and "Stock Bore" in the drop down before ordering so we can be sure to send you the correct piston for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Bikelifewish Over 10 months ago
Hey wats up?
ThiS is the piston I need for my cr125 1997 Oversize .080
Expert MotoSport Staff
Over 10 months ago
MotoSportExpert
Yes this Wiseco Pro-Lite 2-Stroke Piston will fit your 1997 CR125 and comes in oversized. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Zach Over 10 months ago
Hi I have a 1991 kdx 200 and I'm wondering how much compression it's so post to have does it kick hard like a 250 or kick easy like a 125 please re?
MotoSport Staff Expert
Over 9 months ago
MotoSportExpert
For compression specs and testing please refer to your Kawasaki Service manual.
Bikelifewish Over 10 months ago
Hey what's up so this is good for a Honda cr 125 1997 right?? It will fit right in???
If this the right size for A Honda cr 125 1997
Expert MotoSport Staff
Over 10 months ago
MotoSportExpert
Yes, it will fit a stock bore 1997 Honda CR125. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
nick 1 year 3 months ago
What size piston is this stock?
Top 1 Contributor
1 year 3 months ago
MotoSportExpert
66.00mm is the stock bore size on the Yamaha Blaster 200
my89rm250 1 year 4 months ago
What size piiston?
I just bought an 89 RM250 and the top end needs replacing but the piston inside the bike says 72.94MM and that's bigger that any of the sizes for this year bike why is this?
Expert MotoSport Staff
1 year 4 months ago
MotoSportExpert
Sounds like you may have a 300 big bore cylinder on your bike. I would take it into your local dealership and have them look at the cylinder and mic it to determine if you have a big bore.
rust 1 year 6 months ago Location: Raymore, MO, USA
I have a piston that measures out 2.627 inch and a bore of 2.638. What oversize would work best? thank you?
Top 1 Contributor
1 year 3 months ago
MotoSportExpert
Wiseco Pro-Lite 2-Stroke Piston kit for your Yamaha Blaster is made in different sizes. You will have to inspect the bore to make sure it does not need to be machined and then measured to ensure you get the correct piston kit. All Wiseco piston kits are listed in metric measurements for your convenience (1"=25.4mm)
daakkeegan 1 year 6 months ago
Will this kit come with rings if purchased for a 1994 honda cr80?
1 year 6 months ago Location: Ringgold, LA 71068, USA
yz250rider
Yes. All wiseco top end kits come with rings. You will need to buy a needle bearing though
MotoSport Staff Expert Top 1 Contributor
1 year 6 months ago
MotoSportGrantK
Yes, the Wiseco Pro-Lite 2-Stroke Piston will come with the piston, pin, ring (s) and cir-clips.
1-10 of 45