I have been using and selling these Namura pistons for 12 years now and I like them just fine. They feature an anodized crown which makes them more durable. The skirts are Teflon coated for quick break-in. They come in an assortment of sizes so one can fit them very accurately. I have not had a single problem with any of these I installed . Namura makes them for a wide range of powersport
applications and they are reasonably priced. I can recommend using them in anything and I will continue to use them as well