Most Recent Big Bore Kits Reviews
Athena Big Bore Stroker Kit 5150 - 112 Big Bore stroker kit "This kit was pretty straight forward to install. This kit states no machining necessary but you will need to shave the case in order to clear the piston. Also it states all gaskets are included for the job, that not accurate, it comes with head and cylinder gaskets only. Took the bike out for the first time yesterday and it is a rocket. It makes allot more bottom end and the power band is incredible. Used Athena's recommendation for the jetting and it was pretty close just need a little fine tuning. I would recommend this for advanced riders; the yz is fast out of the box and even faster with this mod Time will tell on durability."
Athena Boosts Raw Power
If you're looking for optimum power on your ride or simply want to seriously upgrade stock components then an Athena big bore kit is your first install. Athena is an Italian corporation founded in 1973 consisting of seven companies that manufacture gaskets, technical articles and metallic components.
Athena's Aftermarket Division operates exclusively in the motorcycle industry producing gaskets, thermic units and spare parts. Athena big bore kits include an aluminum cylinder with a galvanic coating, a molybdenum-coated cast piston and a specially designed gasket kit to accommodate the big bore features. Athena gasket kits themselves are an industry-leader.
MotoSport offers a range of Athena big bore kits sizes as well as those popular gasket kits. Use the Fitment Expert to find the right Athena big bore kit for your ride. Most kits contain a cylinder, piston, ring(s), pin, clips and top-end big bore gasket kit. If you want help finding the right Athena big bore kits for your bike please call 866-677-7338 or chat with an expert.
MotoSport is the aftermarket motorcycle parts specialist you need to find the right look, the right style and the right fit. Get the largest selection of Athena big bore kits delivered to your door and free 3-day shipping on any order over $49 (certain restrictions apply) from MotoSport!