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Chain Exchange and Quantity:Front and rear Sprocket exchange in Set.
Reasonable and recommended.

I understand that Aluminum Sprocket is cool, but the drawback is that it is still fast.
That said, OEMs are expensive and not very spectacular in comparison.
This is especially true in the case of Yamaha.
You can't even pick fractions.

This is for you!
It's a trusted and proven Afam property, so the shape can't be too bad.
You can also choose fractions.
The price was only slightly less than the OEM...

It's not the OEM anti-corrosive paint job that's unique to Yamaha, but it's the perfect silver color with the Plating treatment.
It doesn't rust at all. (The part where Chain hits will be rusted because of the loss of plating.
What's Plating, Tinned coat?

The only weakness is that the surface is textured and difficult to clean.
Maybe he's guessing at a Shot blast?
But it's not the sharp, rough, uneven texturedness that Dustcloth gets stuck with.
It's not for people who like shiny, but if you like quality, or as if it's OEM...I highly recommend it.

Simultaneous exchange of Front and Rear Sprocket and Chain

The last time I used the aluminum Sprocket, I didn't like the design and color of the Other Brand Product, so this time I bought this one at Number of Teeth on the OEM.

OEM-style safe design, material color intact Silver
If you don't do regular maintenance on your car, the dirt will be noticeable, but you will be motivated to give it a try based on the dirtiness of the car

The accuracy of the installation is perfect, and the front sprocket and the chain are replaced at the same time.

Material is Steel, so it seems to be durable.

For some reason, everyone happily replaces it with Aluminum Sprocket, but if that's the only choice you have, it's definitely steel on public roads.
Do-iron Psycho.

Naturally, the durability is incomparable.
Do-iron Psycho.

I especially appreciate the durability of the Iron Sprocket, as I use the Seal chain without refueling.
As long as you clean it diligently, it won't decrease at all.
(It has 30,000 miles on it now, but it's not yet time to replace it.)

It's heavy, so I'm not sure if I'll be able to use the bottom of Spring or not.
It's heavy and has poor acceleration, and...
You can't experience any of those negatives.
I don't think you can experience it with testRider or GPRider, though.

The weakness is that the surface is textured and very difficult to clean.
It is textured to the extent that you will be surprised if you are used to the slipperiness of the Aluminum Sprocket.
But I'm sure the textured process increases its strength and rigidity (my own guess), so at least give it a go!

It's listed as 150mm PCD but I received a 130mm one.
Mis-dimensioning of functional parts is fatal and cannot be installed in the first place.