i have used wesco pistons in the past and always had great luck. This kit was shipped in two seperate packages arraving on different days but i was in no hurry so that was fine for my situation. kit has everything you need to rebuild the top end inculding gaskets for the power valve and reed cage. havent actually got to use the bike yet but the install was a breeze.
Wiseco Pro-Lite 2-Stroke Piston - Stock Bore
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Put this in my KX500 that was a bit tired. Installation was smooth. Be sure to put the piston rings on the spring notches as your putting the cylinder back on. Went on smooth, gaskets fit fine and where packed nice. For my break in..
1. Fresh Oil (not synthetic)
2. Warmed engine up at idle to operating temp.
3. Let cool down until engine is completely cold
4. Repeat step 2 and 3
5. Took it on an easy 20min ride at 50% through 3rd gear.
6. Let it cool down and recheck all torque specs
7. Next day compression test then took it out riding, just warmed it up and kept it around 75% riding regular dirt roads for 30min or so. Stopped and ate a snack while it cooled down.... then ripped it for 4 hours like I stole it.
Hyuuuuuge improvement in response, my bottom end snapped harder and when that powerband hits in 4th and 5th on my 500.. hold the F on.
Great product and it's why I run Wiseco pistons.
Wasn't what I ordered. It shows a dual ring piston. I got a single. But it's no big deal
Can't say enough about wiseco pistons. I've used 4 or 5 different brand pistons over the years and from here out I will stay with wiseco. I get more hours out of them than anything else I have tried and even when I have had a failure the piston has always took the damage and left my cylinder in good shape which is nice cause cylinders are much more expensive. The only trouble I had were installing the clips and that's my fault because I didn't use the proper tools to do it with. Also can't say enough about Motosport, my stuff was here quick, undamaged and packaged well, better price than almost everyone, and even got a couple cool little freebies. Will definitely be ordering here again in the future
I used vertex, wiseco and OEM piston's. I go with wiseco because the lighter weight let's the engine rev faster and that also means less rotating mass. The vertex is also Ok but it only has one ring which with the amount of riding I do wouldn't suit me. It would be fine if I was to change top ends every other month. Stock obviously is good but its meant more for reliability, which is good but heavier than going aftermarket. Heavy means slow... So if you race EVERY weekend the single ring is the way go, assuming you will maintain your bike very often. For me, two ring wiseco is the way to go. Reliable, slightly better performance than stock and priced right.
Very good products
Went together easy runs great crazy how you don't notice the compression loss to the foot until you put new P n R
Little disappointed I had to drill the holes to lube the bridge for the exhaust port on my 03 cr250 but other than that everything else is great
Excellent fit and finish.
So far I have 3 hours on my piston and so far so good. Time will tell!
I have been using this kit for years and i wouldnt suggest anything else
Ordered the piston kit on Thursday figured it would get here next week sometime needless to say Friday night at 7:40 pm ups pulls up and delivers the kit I installed it but haven't fired up my bike yet that's why full review not filled out but just wanted to say kudos to Motosport on their knowledge staff and super quick delivery I'm in Utah. It came from California
Great product, as advertised.
It's wiseco! Good piston. I use in all my builds. Every time I've ordered piston, always right size. So far. Awesome
They guys at Motorsport provided the best customer service in the world. I will always going to shop from their website. This kind of customer service is what we need in America. The owner of this company is very smart how he/she runs this business. Keep up a good job guys.
Now let me move on to the piston. I love the quality of the product. It looks really well built but I have not taken my bike for a ride yet. It is too hot here in California, where we can ride. In 2 months or so then I can tell if it holds up to it name.
the whole top end only took a few hours and was up and running. Thing sounds great and the powerband is awesome!! I haven't had it in for long so the durability has yet to be determined but so far so good.
Put a fresh top end on my sons kx100. Stock bore. Real easy to install. He felt the difference in power immediately. Front wheel easily comes up with no clutch pop. Highly recommended.
Best way to go if you prefer to run a forged piston in your 2 stroke. Great fit, finish and quality.
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.
Great product and quality. Fast service thank you Motorsports.
Dirt Bike / ATV: 1-888-676-8853
562M06600 66.00mm STD
562M06625 66.25mm 0.25
562M06650 66.50mm 0.50
562M06675 66.75mm 0.75
562M06700 67.00mm 1.00
562M06725 67.25mm 1.25
562M06750 67.50mm 1.50
562M06800 68.00mm 2.00
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