Accurate and lightweight

I bought this for Circuit.
For MINICourse is swinging to the side with the show.
Lighter weight compared to OEM helps reduce load under Spring. View detail

be very light

The brown color is very luxurious. It weighs one-third compared to the existing standby gear. It's quite light, so I'm a bit worried about its durability, but I'm satisfied. View detail

Used on SR400 final

SR400 FINAL Used in OEM condition, exhaust system, intake and exhaust, ignition system and all other systems are full normal.
First, the Front sprocket is set to SUNSTAR SUNSTAR:221-20 Replaced with 19T→20T.
After driving about 500 km at high speed, I felt that I could still make it high geared, so I looked for a Front 21T and found one made by RCE EngineerRing. When we contacted the manufacturer, we found that the product was discontinued and could not be obtained.
Then, we changed our policy to change the rear sprocket and searched for one that was compatible with the OEM428Chain and found the following. The smallest 51T was selected.
I would have preferred Steel for its durability, but could not find it.

XAM XAM PREMIUM Series Rear Sprocket
Item number:A3207X51T
It was nice to be able to install the OEM428Chain as is, with no Conversion required for the 520Size and no Chain piece stuffing.
Now Front20T/Rear51T with reduction ratio 2.55 ← OEM 2.947 19T/56T

In this condition, the Meter reading was 4100 rpm at 100 km/h cruise, and I could drive with the flow without numbness in my hands, even at a crowded highway. After traveling a total of 650 km on the Kita-Kanto, Joshinetsu, Hokuriku, and Kan-Etsu highways in this condition, I have no problem at all cruising at 100 km/h. Overtaking lane 110-120km/h is also possible. It is possible to climb a hill on the highway at 100km/h with 5th gear. The maximum speed in 5th gear is 125km/h. Also, on ordinary roads, 5th gear is useless at speeds below 60km/h, but this is not a problem at all since the car can be driven in 4th gear. In fact, when driving in Bypass, it is possible to drive at 80 km/h in 5th gear at 3000 rpm, which is comfortable and pleasant. Acceleration is reduced, but it is acceptable.
We recommend this Spec. for SR400Rider, which is mainly for touring.
I would like XAM to produce a Stainless Steel Sprocket, and a 50T Sprocket. View detail

Hard DuraluminSprocket

[How is it used?

I bought a high quality Sprocket as the GEAR ratio setting was set (and consequently replaced and removed further …).

Was the one you received as per Image?

The Duralumin shade is very nice, dull and not too flashy. Lightweight and no BALI, very nice shaping.

Was the installation difficult?

General Sprocket replacement can be used.

How was your experience with it?

I don't see the benefit of weight savings … it looks better.

[Included Parts:were they on?

There is no Bolt or Nut, so it is an OEM diversion.

[Was there anything that disappointed you?

It's not cosmetic other than the way it looks…. View detail

Happiness that there is a wide range of sizes available. I think the products hold up well.

I used to have an image of an aluminum sprocket that would run out quickly and I avoided it, but that was because I was using it on an off-road course, and I wondered if it would hold up well on an on-road course.

In my Motorcycle, I don't remember exactly to the distance, but I think I didn't replace it for 20,000 km....
That product was also XAM's Sprocket.

This time, we decided to replace both the front and rear Sprocket with a new Chain, and chose XAM because it was a minor car model that did not allow us to choose a manufacturer.
XAM is a god that provides even these end sizes.

I don't have any problems with the product, and I think it is very durable. if you have been avoiding Aluminum Sprocket, and especially if you don't drive around a lot of distance, I think you can TRY it once. I think there will be Merit because the weight under the spring will be reduced by the rotating material. View detail