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MONO LINE Rear Single Shock [MZ Series] MZ366

YSS

17 Mar 2024

MONO LINE Rear Single Shock [MZ Series] MZ366

Fits: BMW R80 RT MONOLEVER , BMW R80 RT2 MONOLEVER , BMW R100 CLASSIC, BMW R100 RS, BMW R100 RT, BMW R65 RT

Japanese Webike user

4/5

I think the cospa is very high.

1988 R-100 RS Installed at the shop. The product is highly precise and does not require any special modification, and the adjustment of pre-road and dumping amount is smooth. Therefore, it is not possible to turn the dial to the weakest point of the adjustment range while it is still attached to the vehicle body. In reality, we could obtain a suitable point without loosening the dial to the stage where it violates the sub-frame. (Maybe?) So, I thought it might be a good idea. The original OEM Damper had deteriorated to a large size, so the straightness of the car improved to a large size even in the condition of the torsion. The ride quality is very comfortable once the appropriate adjustment point is found. The durability is unknown because of the short period of use. I can't compare it with expensive products of other manufacturers, but I think it is a very satisfactory product considering the price, at least in normal use. View detail

Spring for Monoshock Free length/150mm/Spring inner diameter/56mm

MONO LINE Rear Single Shock [MZ Series] MZ456

YSS

19 Jan 2024

MONO LINE Rear Single Shock [MZ Series] MZ456

Fits: HONDA CB650F

Japanese Webike user

4/5

Cheaper and better than OEM sus.

YSS Rear Suspension.
This product is MZ456, which is the least expensive model compared to MG and MU with a separate Tank.
We tend to focus on the presence or absence of Tank, attenuation, etc., but this product EmulsionType. It is also important to note that the part that is
EmulsionType refers to a structure without the membrane that is normally present between Gas and Oil. It seems to be a structure that cannot be turned sideways, which should not be a problem for normal use.
I think it may be affected by a fall, etc.... It should not be a problem for normal use...

For CBR650F there is a caveat.
First, the MZ456 that comes up when searching for CBR650F on webike is CBR650F But Late (Part No. 117-2511224). (Part No. 117-2511224)
(By the way, even in the later stage, the one for CB650F is 117-2511510, so it is different.)

117-2511210 is compatible with CBR650F first half. This product is common with CB650F first half.

As a side note, when I first purchased the MZ456, it was listed on the YSSJapan homepage as having a spring rate of 180 N/mm, but the product I received had a spring of 160 N/mm.
I checked and it was 160 on the YSSHomepage in Thailand, probably due to a model change (the model change for CBR650F changed the fitment a few years ago),
I think you copied and pasted the Spring rate as it was in the previous product.
I contacted YSSJapan about this misrepresentation and it has now been corrected.
I was lucky for myself because I was originally planning to wear a 150-160 Spring. I'm glad I didn't buy the pane...

Now, the installation.
Since it is a full cowl car, the removal of the cowl is a bit of a hassle, but once that is done, there is nothing special to be done.
If the jack is raised behind the center of gravity, except for the rear suspension, the rest can be easily removed by simply loosening the screws.
It has a ride height adjustment feature and was slightly shorter when opened compared to the OEM. it would be better to install it after the OEM standard.

After the replacement and sagging, I actually drove about 100 km.
The comparison is to OEM sus.

First, Spring rate 160N was just right to slightly firm for my 56 kg weight.
I was wondering if 150N would be acceptable if it was for one person only, but it seems acceptable. I might gain weight...

However, it is much better than the OEM suspension. That said, the OEM suspension is so hard that I have not felt Stroke at all (not that I haven't) since I bought the car new,
Still, I think the Damper kept it from stretching so it didn't repel.
Well, not only the 650F, but OEMSpring is often designed to be used by two people, so it is generally firmer...

Damper has only rebound damping and 30 levels.
I thought the weakest one moved a little too much, so I tightened it to 20 steps.
This is good because I don't run Circuit so I can just run normally.

It did not bottom out, nor did it run short on the extension side even with bumps, etc., so it is sufficient for our purposes for now.
I was originally dissatisfied with the OEM suspension and thought that the front suspension was too soft (damping was too weak on the rebound side) and the rear suspension was too firm, so I decided to replace the rear suspension.
Both front and rear finally feel like decent suspension.

Incidentally, the OEMRear suspension is about 100,000, so MU will cost you a ton, while MZ will cost you less.
The price is lower, the spring can be replaced, the damper can be repaired even if it dies, and the damping can be adjusted, albeit only on the extension side, etc. Frankly speaking, there is no reason to choose the OEM.

If I had to venture a guess, I would say that it is inexpensive, and although it is a bit shabby in terms of appearance, it is not that noticeable, so I think it is good enough. View detail

YSS

13 Jan 2024

MONO LINE Rear Single Shock [MZ Series] MZ366

Fits: SUZUKI GSX-R 125, SUZUKI GSX-R 150

Japanese Webike user

4/5

Cosmetic as Replace Sas.

[How is it used?
Sports driving in Mini circuit, general street driving
Was the one you received as per Image?
Beautifully made and very satisfying!
Was the installation difficult?
I made a request to Motorcycle BuyShop!
How was your experience with it?
Improved compared to the much stiffer OEM, but Pre-road/Dumping needs to be adjusted!
[Included Parts:were they on?
Pre-road adjustment jig & Sticker are included
[Was there anything that disappointed you?
nothing special
Other items that would be helpful
The pre-damping was installed with the factory pre-damping, but with a weight of 60 kg, the pre-damping needed to be adjusted.
However, since the pre-adjustment cannot be done after installation, some ingenuity is required.
(1) Apply silicon spray to the screw (to make it easier to turn) (2) Purchase an acrylic round bar at a home center and round the tip to make a jig (3) Place the acrylic bar on the concave portion of the adjustment dial and input the rotation direction.
However, the adjustment dial will be scratched.
So you are on your own.
There are also oil pressure adjustment KITs available from YSS, so it may be a good idea to incorporate these into the system. View detail

YSS

06 Jan 2024

Front Fork Cartridge Kit

Fits: HONDA CBR250RR

Japanese Webike user

4/5

YSSCartridge

I purchased a YSS type from the shop and initially planned to assemble it myself. The YSS for MC51 is a type that removes the bottom bracket of the front fork and inserts it between the inner tube and the front fork.
The video on the YSS homepage shows how to replace the rear suspension, but it is quite difficult for an amateur to heat it with a heat gun, loosen the adhesive, fix it in a vice, and rotate it, so we asked Gsense where we purchased the rear suspension.

In fact, this was Large's correct answer. The YSS Cartridge we had purchased had a defective stroke amount, and if we had installed it without noticing, the Cartridge might have hit the top cap and damaged it. As expected of Gsense, which manufactures original cartridges for its own use, Gsense was very helpful in immediately noticing the problem. I am very glad that Gsense noticed it immediately.
Even though the manufacturer is growing rapidly, it still does not seem to have the quality control of a long-established manufacturer.
We pointed this out to YSSJAPAN (PMC), and the person in charge was nice enough to replace the parts in response to the ManufacturerObjection, so it took longer this time, but it worked out in the end.

The spring of YSS is 8.0N/mm, but the shop said that MC51 is usually 7.5N/mm, so I asked them to soften the setting of the front fork to make the spring harder. The OEM fluffiness is gone, and the firmness is there. Smooth weight transfer from deceleration before the Corner ring.

It is for Race, so you can say it is stiff, but it does not mean that it does not move, and its road-following performance is very high. The most important thing is that fine setting is now possible, and it is possible to take a balance with the Large and Rear suspension.

The price is quite high if you include the replacement labor, but since MC51 does not sell front forkBody, the only option is to replace the cartridges. GEARS-SUSPENSION of Taiwan and K-Tech of the United Kingdom also seem to offer the same products, but it is difficult to purchase them in Japan.

If the Rear suspension is replaced and the Front is unsatisfactory, the only way to resolve this is to replace the Cartridge, but it will be a completely different Suspension. I think it is well worth doing. View detail

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

MONO LINE Rear Single Shock [MX Series] MX366

SPORTS LINE Rear Twin Shock [E Series] E302

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