Great kit for my 2014 kx450f, comes with pleanty of extra gaskets. I ordered it and it came without one oil scrapper ring. I called motosport and the shipped it out to me with 2 day shipping for free i could not be happier with the profuct and motosport themselves!!!! Thanks guys so much keep on riding. Braaaaap!!!!
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I've had the wiseco top end kit on my bike now for a little over 15 hours. There is plenty of power and it doesn't seem to be going anywhere! I would definitely recommend this product to anyone!!
I just bought this piston and it came with one less ring than needed. Now I can't install it with out getting new ones. .
As expected Wiseco put all of the power back into my bike with the aftermarket look. The piston looked so good i almost didnt want to put it in the motor. I have a couple hard rides and havent had the the first problem
Wiseco has never failed me yet, and this piston is no different. It looks excellent and the machining is top-notch. Killer upgrade for any stock bike, or replacement for a toasted piston.
What else is there to say...Wiseco puts out the best pistons, producing the power required when you snap the throttle, nothing else compares!!!
Purchased a Wiseco top end kit for my 06' CRF250r. The kit is everything you should expect from a top end company like Wiseco. High compression piston made a huge power difference. Installation was easy for a mechanic. would not recommend a beginner/shade tree to attempt, but if you do...please open your book and follow the instructions. And of course customer service/shipping etc. was everything you should expect from a top notch company like motosport.com. Would have no problem recommending both product and company to any friend!!
This was the first top end rebuild that I have done on any engine and it was surprisingly easy, with a little help from youtube, just make sure you get your timing right
best pistons out there great power easy to use come with everything you need for the job two thumbs up
I bought it for my 2011 kx450f and oh man this thing gives you're bike soo much more power! The Top end is way longer now and it added so much more bottom end power! Love it glad I bought it! Deffinatly worth the price. It went together perfect with no problems!
I've never replaced a piston before in a four stroke. But, with the economy the way it is I thought I would give it a try. Changing the piston is pretty simple but you have to take a lot of items off the bike to access the piston.
I found this Wiseco top-end kit worked great for my KX250F. Everything worked perfectly including the gaskets and rings. I've put 50 hours on my bike since the piston replacement and it is running great!
This piston added ridiculous top end.
much light piston than stock
adds alot of power was difficult to wheelie in 3rd on asphalt and difficult to start. after wiseco piston kit it wheelies is 4th on sand easy and in 5th if you clutch it. makes a huge power increase.
Everything went in with ease my yfz runs great and has plenty of power.
I purchased this product to rebuild my 12' crf450 and it was exactly what i was looking for. The product does everything it is supposed to.
I bought this for a 2007 CRF250R, installed as easy as a 4 stroke topend can be to install. Parts fit perfect and really woke the bike up! With the original topend still in the bike I didn't realize how much power I had lost until I put this kit in and WOW what a difference! Power gains from the very bottom all the way to the very top of the RPM range!
Piston kit fit flawlessly. The gasket kit fits perfect, and bike started in two kicks when tge job was done. Im very impressed with the performance of this kit. Wiseco is a great product, and I run there kits in every bike I have owned. These,kits have never failed in any bike I have owned. Great quality product and price.
This piston kit is great! it comes with everything you need in itand all of the parts seem to be incredibly durable! The piston itself wieght about half of the one i took out, but i still spears to be stronger than the old one!
Once again weisco made a great product with an easy install, super easy directions, and a huge difference in my crf 250 r's perdormance. Would dedinately recommend this to anyone on any bike. Oh yeah and motosport got this to me in 3 days for free, cmon what more could ya ask for
Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Compression Ratio - Actual: