Vertex 2-Stroke Piston

Vertex 2-Stroke Piston
Vertex 2-Stroke Piston

$42.99 - $192.55
10% Off - Save up to $21.40

Description See Also: 36 Reviews 8 Questions Fitment
Item #VER0003

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36 Reviews
4.9 out of 5 stars
5 Star   39 4 Star   2 3 Star   0 2 Star   1 1 Star   0
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All Reviews
stallion
Missouri, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Pleased so far

I am pleased with how well this fits and the bike runs very well

kingpin Verified Purchaser
Durability 5/5 Ease of Installation 3/5 Performance 5/5 Power 5/5 Style 5/5

The piston is great, but those clips really suck unless u have that wrist pin clip tool. I highly advise you to buy one.

Docproc Verified Purchaser
NWI Indiana
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Rippin

Great product and great price

Aj Proctor
Mrbojangels Top 1000 Contributor
Springfield
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 4/5 Style 5/5
Does wonders!

I have used vertex for years and am always very pleased with quality and compatibility.
Always fits without having to modify ring gap or mess with anything.

dirt Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Good quality , good price

Very pleased , just as good as oem ktm parts.

Houtsy Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Very good rebuild kit

Awesome kit. Power for days

Kubes
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
A no brainer

Great Piston for all levels of riders and racers! Easy to install and peforms better than OEM!

Huskyracing Verified Purchaser
Florida, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Vertex piston

...this wasn't my first Vertex piston kit nor will it be my last. High quality replacement piston that has given excellent service through the years. Husqvarna had been using them for years as OEM install and that's all the more reason to use them.

danlaney Verified Purchaser
Mill Creek, WA, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Big Power All Around

I immediately noticed huge power gains all the way from low end to top end. I have never had so much power on my 1998 Honda CR250 since I bought it. I am still at stock bore, too. Installation was a breeze. Rings fit perfectly. The piston clearance was spot on. I can hardly keep the front wheel on the ground now.

lobovieyra Verified Purchaser
Mexico, MO 65265, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Excellent produc

excellent product,

quality, presentation and durability,

widely preferred

2wheeltimmy
Greensboro, NC, USA
This is a "B" piston for KTM125SX

Although this says stock bore (2007 KTM125SX) keep in mind this is a B piston Vertex part #23928B so if you just got you cylinder replated, this is the wrong size, you need an "A" . No problem returning it, great customer service on the return but bad customer service when asked if this was an "A" piston and was told yes. Delayed my rebuild.

DM794 Verified Purchaser
Ocala, FL, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Great Piston

The quality is second to none, the power certainly noticeable...and on top of that the piston itself looks pretty cool too, excellent machine work. I would definitely recommend this piston to all my friends.

klewis13
Tennille, GA, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Great product

This is a great overall piston brought the power back for my ktm good tight fit

CanAmMan1234
Shawnee, OK, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Great product!

It installs pretty straight forward and if you have basic skills in engine work you will have no trouble.

toprankrmracer Verified Purchaser
victoria -Australia
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awsome after market product

i now have2 of these vertex pistons on my full moded rm85 race bike and hope to get another for my newly brought rm 125!
awesome light weight design,
good friction coating
single ring performance
good lubricating mod holes
very good price for the deal you get
cheers
glen
Australia

KTM09 Verified Purchaser
Kingston, TN, USA
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
New piston and ring put the snap back in!!

The new ring and piston put the snap back in the bike so much had to let the little guy get use to the bike again. I could have got away with just rings but for the price might as well do the job right and not have to worry about it. The piston fit just like the guys said it would. Thanks

Motocrosser Top 500 Contributor Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Great piston!

Great piston and great price.

DirtWarrior
Western PA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Looks cool, performs better!

This is a great piston. Just be sure to measure your cylinder BEFORE you buy a certain size to prevent fitment issues.

cycleamick Verified Purchaser
Cocoa Beach, FL, USA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Great Product

I noticed a huge power gain when I installed this piston the only issue I have with it is the C clips. They are very hard to install.

Lgdog Verified Purchaser
Texas
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awsome

I think that your products are awesome and y'all make every thing easy! I definitely will recommend Motosport to a friend or family member! Thanks Motosport....Robert

See 16 More Reviews
8 Questions
Answered:   8
Not Yet:   0
shopdad
Location: California, USA
Q: Does this come with head and cylinder gaskets?
1 year 1 month ago
MotoSportExpert
Expert MotoSport Staff
1 year 1 month ago
A: No, this would be for the piston kit only (no gaskets). Gaskets can be found in our OEM section for your bike.
http://www.motosport.com/dirtbike/oem-parts/honda/2002/cr80

Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
hotrod
Over 8 months ago Location: Blackfoot Idaho
A: No you have to buy the gaskets separately . I use cometic gaskets .
JasonGraaf
Q: Drill holes?
1 year 5 months ago
For Wiseco pistons, the included instructions specify that 2 small holes must be drilled in the piston skirt to lubricate the exhaust bridge (2004 cr125). The Vertex piston instructions do not specify that this should be done, but I am cautious of leaving the exhaust bridge unlubricated. Should I drill the holes or not?
MotoSportExpert
MotoSport Staff Expert
1 year 5 months ago
A: No you should not need to drill holes in the Vertex Piston for your CR125.
Chandler
Q: Same size as OEM?
1 year 7 months ago
I have a 1998 kx125, would this fit the stock cylinder head? Is it the same size as OEM?
MotoSportExpert
Expert MotoSport Staff
1 year 7 months ago
A: Yes this would be stock bore for your 1998 KX125. 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 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.
Corey
Location: Fort Collins
Q: Stock Bore "B"?
2 years 10 months ago
My cylinder is stamped with a "B" on my 2011 YZ250. This is a stock bore, correct? The Vertex 2-Stroke Piston- Stock Bore is the correct size?
MotoSportRyanT
MotoSport Staff Expert
2 years 10 months ago Location: Portland, OR, USA
A: Yes, since this is a forged piston instead of a cast piston like your OEM piston was it does not have the "A, B, C" designation. It will work perfectly fine with the "B" cylinder on your YZ250 as forged pistons actual form to fit the shape/size of the cylinder when they are run through a heat cycle or break in period.
Aaron
Location: Manteca ca
Q: Does the kit come with all the gaskets needed?
2 years 11 months ago
RyanK
Top 250 Contributor
2 years 11 months ago Location: upstate SC
A: No gaskets included with this kit. You'll need a top end gasket kit as well.
MotoSportRyanT
Expert MotoSport Staff
2 years 11 months ago Location: Portland, OR, USA
A: This is actually just the Piston, Rings, Wrist Pin and Circlips. It would not include the Gaskets. We do offer several Piston Kits that would include the gaskets (see product recommendations).
Bunker
2 years 11 months ago Location: Riverside, CA, USA
A: No you need to get gasket kit as well
Docproc
3 months 16 days ago
A: Mine did nor
FD3S
22 days ago Location: Savannah,
A: No it does not come with gaskets. I recommend the OEM gaskets or Athena.
cr250chick
Top 500 Contributor Top 250 Contributor
Q: 2003 CR250 Piston fitment?
Over 3 years ago
I have an 03 CR250 and I just installed the Vertex piston (Stock Bore) that I bought here a few months ago. After only a few hours of riding I pulled the top and noticed it has been rubbing against the cylinder in the front where the exhaust ports are. I have an A cylinder and noticed the piston has a B on the top. When I ordered it there was only one option when it came to piston size but I'm guessing this is the wrong size for my cylinder. Is there an option for an A piston from vertex?
MotoSportExpert
Top 1 Contributor
2 years 1 month ago
A: Vertex only list one piston size for you 2003 CR250 bike: 66.35mm

Be sure to ALWAYS measure the cylinder bore before ordering a piston for your bike and refer to an OEM service manual for the proper specs required.
mikep
Q: I need to find the type 2 size piston due to the larger cylinder where can i find it?
Over 3 years ago
MotoSportExpert
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: Not sure what you mean by "type 2" piston. If you can call us with what the current bore size is of the cylinder we can get the corresponding piston for you. Stock would be 54mm on this model.
dogman
Location: walterboro sc
Q: One side of my motor is good one side is bad can i use this piston for the bad side or do i need both?
Over 3 years ago
MotosportStaff
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: I suggest doing both top ends at the same time to start off fresh. Replacing one piston and not the other will cost you more time and money in the long run.
kawasaki76
Over 3 years ago Location: camden on gauley WV
A: It would be better to do both sides so that it would be a fresh rebuild and it would save you time and money. You might replace one side and then a few days or something the other side will go bad.
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Fitment
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