Bought about a month ago and installed and so far it’s been great
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I bought this couple months back and it improved my bike performance a lot... I’m well satisfied with my purchase
Great long lasting piston that you can rely on keeping your bike running
Was repairing a customers TRX 400 ex
This piston has history and has been a great product to use!!
I have always ran Wiseco in my atv's, recently did a full rebuild with a new Wiseco piston and has been running great.
Rebuilt my top end on my kx250f everything went together great, only problem I seen was the directions on installing g rings was a little wonky the way it was written and it could confuse some people, bit other than that this was a 1 hour job, the cometic gasket kit featured metal gaskets which are great for keeping tight seals.
I bought this piston as a replacement for my OEM. It is an awesome kit, Wiseco even gives a sweet little baggy with the piston. All directions and hardware were easy to read and easy to install.
Maybe it’s just because it’s a new top end but the Wiseco definitely felt like it had quicker throttle response and way more grunt down low than the stock piston.
Unfortunately we at Motosport.com are not able to give you repair advice. We highly suggest that you purchase an OEM service manual for your machine and refer to it to answer your repair questions. If you need more assistance, please consult a local repair shop to further assist you in your repairs. If you need parts to assist in your repairs, we are happy to assist you with your parts order.