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this fourth bearing kit holds the crankshaft more stable. Can tell the difference around 8-9k rpm. The bike does not feel that shaky at that point.

This kit by SP Takegawa is a nice way to help lengthen the life of the honda crank and bearings and help support the crank at the flywheel end. A well made kit again by SP Takegawa. just remember to add the extra oil hole to the stock cover to make sure you get oil to both sides of the bearing

This part works as advertised. The quality of these kits are are exceptional as you would expect from any high end manufacturer. Fitment is exact and everything goes together without any problems. It is a complete set and included everything needed to install.

About quality and texture, I can confirm that the quality is great and that the materials used are a mixture of aluminum that is CNC machined to shape and finished with an all black anodized finish and steel ball bearings. About the feeling of use, Perfectly designed and manufactured parts in this kit that aids in the longevity of the 2nd generation Grom engines crankshaft. Products to buy together, Other parts to help improve the reliability of the Honda 125cc horizontal engine like the Takegawa cam chain tensioner would be ideal to add to your cart. Difficulty of installation, I can say the fitment of the crankshaft support adapter for my installation was average due to the amount of access required to get to the internals of the engine and the special tools needed to complete the installation. Cost performance and comparison with other products, The pricing of the product is good. You receive high quality material and well designed parts, cheaper options are available from Thailand vendors. About shipping and packaging, My order was shipped within 24 hours of the product being in stock and I received a few emails advising me of the status up until the order was dispatched. The order arrived within the estimated date range and was extremely well packaged. I found the link supplied to track my order very useful while I was waiting for the order to land in the country. Any concerns, cautions, or advice when purchasing, I have no concerns or cautions when purchasing from Webike. I cannot recommend Webike enough for the majority of your biking needs. They not only sell aftermarket parts and bike gear but also OEM parts for your repairs and servicing needs.

About quality and texture: I am happy with the quality of the crankshaft support adapter from SP Takegawa. Complete kit that includes a steel radial ball bearing, machined aluminium bearing hold plate and shaft nut.About the feeling of use: A necessary addition for my latest higher powered Grom that I am hoping will be sufficient to keep the stock crankshaft in place until I am ready to install the SP Takegawa strengthened crankshaft.Products to buy together: A stronger crankshaft from SP Takegawa or Kitaco would also be desirable to purchase alongside the crankshaft support adapter for the ultimate crankshaft setup.Difficulty of installation: The process to install takes about one hour. Remove the left crankcase cover, flywheel nut and 3 bolts retaining the stator. Lubricant the ball bearing, push into the left crankcase cover and install the bearing hold plate. Install the shaft nut with a torque value of 64 N m and use the new included gasket for the left crankcase cover. Not difficult to do.Cost performance and comparison with other products: Good costing as you are getting a well designed product that could save you from also having to install a strengthened crankshaft depending on the horsepower your Grom is making and from what I can see the only other company offering a similar product is inferior to this design from SP Takegawa.About shipping and packaging: Sea freight was my preferred method of shipping due to the lower cost but currently unavailable due to Japan Post. Webike kept me updated on the status of my order up to when it shipped. The parcel arrived within the expected date range and was well packaged with no chance of the part being damaged.Any concerns, cautions, or advice when purchasing: If your engine has high kilometres then you should definitely being checking the runout of the crankshaft to ensure it is within the standard value before purchasing and installing the crankshaft support adapter.