I am thinking of buying this. Can anybody tell me anything about it? The seller says that it might be an HRC rear shock for an NSR. It's got some measurements:
３０５ｍｍ　height adjustment ＋−１０ｍm upper hole is １２ by ２４．５　and the other is １０ by ３９　
was taken off an MC21 allegedly.
Seller says that it can be recharged by a scuba tank compressor or something ??!!!?!? MAYBE

So ....anybody recognise it? And should I buy it? Do you think it will be much better than the stock?





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MC28 SE -sold-
MC21 with RS250 engine -for sale-
MC21 race bike -soon for sale-

i have a21sp shock on my bench at home and they look pretty similar, the remote is the same colour but mine doesnt have that little nipple thing on it.

what does he mean "recharged"
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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

You should buy it, and then bring it to England next week, and let me have it!... It's an F3 shock, and I want it!!! :D

Andy.
NSR-WORLD.COM

yup, looks like a 21/28 shock. it looks a little ratty but that can be cleaned
up. the most important thing is that threaded collar on top to give you ride
height adjustability

Well, I've got a spare SP shock floating around at home anyway (same as the SE right?), so I don't want another one of those!

Are there any advantages of the F3 shock other than ride height adjustment?
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MC28 SE -sold-
MC21 with RS250 engine -for sale-
MC21 race bike -soon for sale-

If the SE/SP shock's in good condition, then the real advantage of the F3 is really the ride-height adjustability.

Oh, that and the Poser points!! :D

Andy.
NSR-WORLD.COM

There's another F3 shock on auction at the moment, I can get that one for you if you like, starts at 200 quid, and I doubt the bidding will go above 250, you'll probably get it for 200.

Do you want it?
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MC28 SE -sold-
MC21 with RS250 engine -for sale-
MC21 race bike -soon for sale-

Julian,
the F3 shock has different internal valving, setup for track use like an RS. Combined with the added adjustablity, makes it real nice to have for track use.

I can tell you that just comparing my NSR back to back with my RS when I was at Ebisu last May, I didnt realize how much the NSR rear shock needs work. The RS was rock-solid and stuck well, the NSR rear felt like it was all over the place and unpredictable.
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Paul Herr
'88 FZR4/GSXR/YZF Frankenbike
MY BIKE PICS

Thanks Paul,

I remember you once suggested I got an F3 shock, but I forgot what the justifications were. Here's hoping I win the auction!

J
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MC28 SE -sold-
MC21 with RS250 engine -for sale-
MC21 race bike -soon for sale-

That's done it! Now I've got no chance of getting my hands on that F3 shock on the cheap!! :D

Sometimes you can be just a little too informative Paul!! ;)

Andy.
NSR-WORLD.COM

Why get an old F3 shock when you can get a new ohlins for about 430 pounds?.I have just put a new ohlins onto my NSR cost $1300 NZ.This included them setting it up for the track.

There's another F-3 shock going for 200 GBP, so you can have that one if you want.

OR there's this thing on auction, but I suspect it's going to go for a fair bit:



Whoops!!! Just bid on it. Yikes!!! What am I doing, I can't afford it!!
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MC28 SE -sold-
MC21 with RS250 engine -for sale-
MC21 race bike -soon for sale-

anyone know where i can get hold of the bit that holds the remote in place?

no bean cans cheers dave.
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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

'Tis indeed an F3 shock.

The added bonuses over the stock SP shock are stronger internal damping, a lightweight aluminium body and ride height adjustability. The actual damper valve is the same as an NSR, but there's nothing wrong with that.

The fact that it has a valve in the reservoir means that it's been rebuilt. They came from the factory fully charged and "non-rebuildable".

I have the very same shock on both my NSR300 and NRS250. They work great. I have another in my box upstair, but it's missing the top mounting piece.

The stock NSR SP shock can be rebuil;t to the same spec as the F3, and then recharged with nitrogen in the same manner as the F3 shock shown in the picture by fitting a valve. Just for your info, they're charged at 150psi.

OR there's this thing on auction, but I suspect it's going to go for a fair bit:
Invigiator....this thing is the Ohlins shock.