【SUNSTAR】Front Sprocket Review

When in doubt, this is it.

I bought this to match the Rear, and unlike the Rear, which is flashy in material and appearance, this is a plain but Large component.
Without hesitation, we chose SUNSTAR because of its security and reliability. We have and will continue to choose SUNSTAR for our replacements. View detail

High-speed stopover setting

The normal 14T was also good, but depending on how you drive, it might be a bit jerky from 1st to 3rd gear when driving in town for commuting, etc., and I thought it might be too much of an embbracing effect, so I decided to go with the 15T for higher speeds.
The effect was as I expected, a little more mild and easy to drive in town, and overtaking acceleration on the highway was no problem, making it an EXACTLY good choice for me. I think that 15T in NORMAL would have been fine for me, although everyone has their own experience, riding style, and preferences. View detail

Why is the same number of Ding as OEMs so expensive….

What made you decide to buy?
I have been working on the ZX-6R for 3 years now, and the mileage is about 10,000 km. I thought it was too early to replace them, but since all the parts were available during the spring sale, I decided to replace them.

[How was the installation?
I found information that the Torque of the Engine Sprocket nut fixing the front sprocket was halfway tight, so I loosened the Engine Sprocket nut using an electric Impact wrench from Tirefor Replacement. After that, I tightened the rear brake with the torque wrench at the specified torque of 147Nm, and finally, I bent the washer over the nut using the water pump pliers to prevent it from loosening.
*We are planning to describe this replacement work in our maintenance diary. Please take a look if you like.

How was your experience with it?
At first I was not sure whether to go with 16T or not, but I liked the ride quality of the OEM, so I decided to go with 15T, the same as the OEM. So there was no change between before and after the replacement. The normal specifications list on the product page says 16T, but the 21-year ZX-6R has 15T Front, 43 Rear, 2.866 reduction ratio, and 112 Chain links. View detail

Optimized with Front1Down

[How is it used?
This is an IMPRESSION with 100% Circuit running.

Was the one you received as per Image?
Yes.
This time, we dared to choose 525 without 520Conversion, but even though Steel is the same as OEM, it is MADE IN SUNSTAR. (OEM may be SUNSTAR as well.) is lightweight due to the lack of meat removal and the RubberDamper, which is present on the OEM.

Was the installation difficult?
The shop is in charge of the front replacement, so the process is basically to loosen the axle of the rear wheel, lower the tension of the chain, and then remove and install the front sprocket. The front sprocket nut has a high torque of 140Nm and the OEM is very tight, so it may be difficult to remove the front sprocket without a proper tool.

How was your experience with it?
The OEM YZF-R1/M has a secondary reduction ratio of F16/R41, but even in Circuit, it rarely goes into 6th gear, and most people change it Large. Most people change the ratio to a large one. Unless you want to adapt it to a specific Circuit, it can run in any Circuit to some extent.:As for the Set, I think Front1Down is the best solution, running with the OEM GEAR ratio, In second gear, it's hard to ride at high rpm, and in third gear it's a little heavy." You can drive comfortably in 3rd gear on the Point where you feel like you are in the middle of the road. The appearance does not change at all, but expensive Parts (Exhaust System, Suspension, etc.) I think it is more expensive and outstanding than replacing the

[Included Parts:were they on?
None

[Was there anything that disappointed you?
None

Other items that would be helpful
Installation points and hang/Availability and clarity of the Instruction Manual/Points to consider/Items to purchase/Opinions and requests to the Manufacturer

A new pure STD Nut is required for replacement. I also replaced the Washer, which is in the form of a plate, at the same time.
・90208-22002 Washer、ConicalSpring ¥616 (Tax included/as of April 2024)
・90179-22018 Nut ¥660 (Tax included/as of April 2024)
The two points are View detail

feel well

Used for Restore on TW200
It is a little more expensive than other manufacturers, but I trust them.
The one that came with it so far was terrible.
In case of TW200, it is necessary to remove the Left cover to replace the FrontSprocket.
I'll have to buy Packing at the same time. View detail