YSS JAPAN Motorcycle Reviews

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MONO LINE Rear Single Shock [MZ Series] MZ456

YSS

20 Nov 2023

Twin Shock [Z Series] Z302

Fits: HONDA MONKEY125

NO NAME

5/5

Modern styling and all black finish of the shocks suits the black Monkey 125 to a tea

About quality and texture, I can confirm that the quality is great and that the material used is aluminum with a black finish for the shock body and steel with a black powder coating for the springs. About the feeling of use, I am excited to now have adjustments available via 30 levels of rebound damping, preload via the adjustable nut for when adding additional weight and the modern styling and all black finish of the rear shock absorbers suits the black Monkey 125 to a tea. Products to buy together, A fork spring upgrade would also be ideal to add to your cart to make the bike more useable in all riding conditions as the original Honda fork springs are very weak. Difficulty of installation, I can say the fitment of the rear shock absorbers was very easy due to the simple nature of the task and ease of access to the mounting nuts. Cost performance and comparison with other products, The pricing of this product is good as you are receiving a nicely styled set of shocks with high quality materials being used. Cheaper options are available from other brands but with lower quality materials. About shipping and packaging, My order was shipped within 48 hours of me placing the order and I received a few emails advising me of the status up until the order was dispatched. I find the link supplied to track my order very useful and the order arrived within the estimated date range. 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

MONO LINE Rear Single Shock [MZ Series] MZ366

MONO LINE Rear Single Shock [MZ series] MZ366 CBR250RR (MC51) Exclusive model

YSS

06 Oct 2023

MONO LINE Rear Single Shock [MZ Series] MZ366

Fits: KAWASAKI Z250 (2013-), KAWASAKI Ninja 250 ABS KRT Edition, KAWASAKI Ninja 250, KAWASAKI Ninja 250 Special Edition, KAWASAKI Ninja 250 ABS Special Edition, KAWASAKI NINJA2 Helmet50RR

Japanese Webike user

5/5

overpriced

I decided to replace the OEM suspension because it was just oddly stiff and I didn't like the ride quality. I decided to go with this one because it was reasonably priced and had Rebound adjustability.
It's still under test drive, but it's not as good as NORMAL....... The ride height and spring pre-road are the same as shipped, and the rebound is set to the lowest setting. (The shipment was 14Click back from the strongest) I have settled on a 4-click tightening from the first. I think I will be able to get used to it as the distance progresses a little, so I will start making adjustments to the pre-road and rebound from here.
I am so satisfied that I am really looking forward to the ride.
Incidentally, *Front fork & Spring:NORMAL *Rear suspension:YSS MZ366 Tire:DUNLOP Q-LITE 110/70-17 140/70-17 Spec. View detail

SPORTS LINE Rear Twin Shock [Z Series] Z362

YSS

29 Sep 2023

SPORTS LINE Rear Twin Shock [Z Series] Z362

Fits: YAMAHA SR400, YAMAHA SR500

Japanese Webike user

5/5

This Rear Suspension is solidly built and fully functional!

[How is it used?
I bought this suspension from YSS because the suspension of my CD50 was worn out and I wanted to get a better suspension.

Was the one you received as per Image?
The texture is higher than Image, and the construction is comparable to OHLINS and NITRON.

Was the installation difficult?
Installation is easy, requiring only the replacement of the collar.
We were very careful not to scratch it.

How was your experience with it?
It is a wonderful thing to see how well it tracks on the road surface and how well it can handle a bit of Gap.
I thought the CD50 might have overspecifications because of its light body, but the Spring can be adjusted to be quite soft, and the Pre-road can be adjusted by 30 degrees, so I have no complaints.

[Included Parts:were they on?
The rest is unknown as it was purchased used.

[Was there anything that disappointed you?
So far there are none, but I am concerned about durability.

Manufactures such as OHLINS and NITRONetc. can perform OH, but it seems that YSS will not accept it unless it is an official FOR JAPAN MODEL product. Please note that parallel imports are not accepted. View detail

MONO LINE Rear Single Shock [MX Series] MX366

SPORTS LINE Rear Twin Shock [E Series] E302

MONO LINE Rear Single Shock [MG Series] MG366

YSS

10 Sep 2023

Front Fork Spring

Fits: KTM 1190 RC8R, KAWASAKI ZZR1400, KAWASAKI ZX-12R, SUZUKI TL1000R, SUZUKI GSX1300R, HONDA CB1000R, HONDA CBR900RR, HONDA VFR1200F, SUZUKI B-KING 1300, KTM 990 SUPER DUKE R, KTM 1290 SUPERDUKEGT, SUZUKI GSX-R750, SUZUKI GSX-R750, KTM 1290 SUPERDUKE, KTM 1290 SUPERDUKE

Japanese Webike user

1/5

Please check the outer diameter and free length before purchase.

Purchased for Fork Setting of GSX1300R HAYABUSA08MODEL.
The applicable model is 99-16, but the free length of Spring is different for GSX1300R HAYABUSA after the 2nd model.
If you don't understand this and then replace it, you won't get the setting you are aiming for.
I waited 3 months and wasted my Gold ….
The product itself is not bad, though, "Conform" If the "I" is written well and the product is this, it is indeed impossible to give a score. View detail

YSS

16 Aug 2023

Fork Upgrade Kit

Fits: HONDA CBR650F

Japanese Webike user

4/5

Large changes until you can aim at Setting.

I used it on a CBR650F...Before Impression...although the stock information stated that I would receive it in a short period of time, when I placed the order, the delivery time was extended to several weeks and months, and in the end it took almost 3 months to receive it.
I understand that there are some reasons, such as the product does not sell well, or the distributor does not have it in stock because it is imported, but if it takes time, I wish they would have mentioned that it takes time.

Product Contents include Spring, ForkValve, Color, Top cap (with damping adjustment), Fork oil (small quantity) Quantity:The top cap alone costs about 10,000 yen,
Considering ForkValve 10,000 yen and Spring 10,000 yen, is this what the price is? I think it's about the same price.
In addition to the items shown in the picture (Preload Adjuster, Exclusive Collar, Exclusive Spring, PD Valve, PD Valve is the key of this product), Instruction Manual etc. and YSS Fork oil No. 20 are included. The capacity of this oil is not enough to replace the oil in the Single Body. I would like to see the price of this product lowered a little without including it.
In addition, the viscosity of YSS's Fork oil (40°C) is quite firm, at 99.4mm2.s.
For example, Honda's Fork oil No. 10 as OEM compliant is 34.7, so you can see how hard it is.
In fact, the kinematic viscosity of fork oil varies so widely from manufacturer to manufacturer that it is not uncommon to find that Company B's No. 10 is harder than Company A's No. 20.
I was worried about the hardness of YSS's fork oil because it was too different, and I also thought the fork oil itself was too expensive, so I prepared KYB's No. 15.
...Yeah, I didn't realize I made a mistake here.
When it came time to replace the oil, we realized that one bottle of KYB Fork oil was not enough, as it is 600ml. I ended up having to buy another bottle, which was expensive.
The fork oil comes with only 250ml as an adjustable amount, but of course it is not enough for a full change of 650F, and if you buy yss fork oil, 1 liter is enough.
If so, I'd like to see the price lowered without including this.

Dustcloth becomes pure black.
The valve should be loosened once to make sure it is firmly set to the specified value. 2 revolutions from the beginning of the pre-road engagement is the specified value.

Spring rate is 7.0-11.5N.
Considering that the OHLINS for 650F is 7.5 and the Scuder RearOkumura's MESUPER SPORTS750 is 8.3, the numbers are reasonable...?
It would be best if I knew the NORMAL Rate, but I couldn't find it there.
However, in NORMAL mode, the Front is too soft and moves in a nimble manner, while the Rear is too rigid and does not seem to move at all. (Of course, it does move slightly.)
Therefore, the direction is hard in the front and soft in the rear....

The PD Valve, depending on the model, may require an extra hole in the seat pipe to reduce the resistance on the compression side, but the kit for the 650F did not include such instructions, so I installed it as is.
The PD Valve has a Route, which is tensioned by Orifice + Spring that opens when pressure exceeds a certain level, on the retracted side, and a Shim with a weaker Spring on the extended side.
Since the seat pipe is unmodified, it basically means that the resistance is increased in the NORMAL oil path.
The weight of the resistance on the contraction is the Spring rate. The resistance on the extension side is auxiliary and can be seen as almost unchanged at about the Shim of the PDValve.

On the shrinking side, there is a small orifice that seems to pass through when resistance is weak, but when excessively large pressure is applied to it, the spring is pushed open and released from the center.
It's a way of increasing resistance in areas where it doesn't originally exist in NORMAL.
However, as far as I can see, the orifice has only one hole, and I wonder if this will cause the Spring side to open immediately if just a little resistance is applied...?
Maybe we can raise Spring's Tension...

I actually replaced it and ran it for a bit.

The front seems to have become a little harder due to the change in rate. I have an impression that the front has become a little stiffer due to the change in the rate.
After assembly, we headed out for a test run. We went to Hakone for a test run in the city and for a light winding.
At this point, the fluffy feeling felt by the OEM is gone.
I thought it looked good without bottoming out.

And the other day I ran about 440 km round trip.
I think the PD Valve thickness is offset by the Exclusive Collar........ I think it's either that or the PD Valve thickness is offset by the Exclusive Collar....
But if the Oil is too hard, it seems like the PD Valve shim will open up and flow...
In the meantime, I would like to see Timing and change the Fork oil to something softer.

This product is only Setting parts. It is not something that can be just popped on and done. It is not something that can be simply popped on.
I think since I took the time to decide on the Setting

I think it is not bad if you consider that the cosmetics are good and that there are more parts that can be set. View detail