Superbly assembled kit

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, Superbly assembled kit that aids in the longevity of the 3Gen 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. View detail

Caution, oil lubrication is required for bearing every 500km.

This is the third bearing to prevent shaft shake of the crankshaft.
It is not to be used for crankshafts that are already shaky, but as a preventive measure.

If you follow the instruction manual, you can do the work in two hours.
A Special Tool (PulleyHoldWrench, or RotorHolder as it is called at the site of purchase) is needed to remove the center nut of the crank pulley.
On the crankshaft side, note the mounting orientation of the spring washer.
The BearingHoldPlate looks as if it is installed on the opposite side from the picture in the instruction manual, but it can only be installed as shown in the attached picture.

The Purchase Site states that it is a 3-point support, but I think this is a lie.
I bought it with Image which supports Shaft like Wheel bearing, but when I installed it, there is a little gap between special Lock nut which extends the shaft and Bearing.
In other words, the Bearing side (Generator Cover side) is not firmly supported as a third bearing. ＞See photo.
Perhaps it is an insurance mechanism that acts in the event of large-grain axial shake (deflection motion).
So, it may be necessary for people like me who run the car at high RPM spec, but it may not be necessary for those who run a full two wheeler.

The last part of the instruction manual contains an outrageous note. ＞See photo.
”Bearing is to be lubricated every 500 km”.
This would be redon't you think, because if the lubricant runs out, it will cause resistance to rotation of the Shaft.
It is not a Race vehicle and this MaintenanceCycle is not practical.
This is the kind of information I want to know before I buy, but PurchaseSite doesn't list this kind of warning. This is also redundant.

False 3-point support, impractical MaintenanceCycle, it might be better not to introduce this Parts. I have trusted SP Mukawa's functional Parts until now, but as expected, I'm going to say no to this one.
The quality and texture is not as expected for a functional component, so it is 1 star.
I don't know about durability, as I have not tested it, but since it is not supported at exactly three points, I will leave it out of the discussion.
However, the overall rating is 2 Stars with high hopes that it will be an insurance policy for people like me who DRIVE at high RPMs. View detail