rocket 3 ****

[barbagris]

Found a few comments suggesting that RFY are

1) Rebuild-able.
2) Need to be.

Black air is better than Black Water.

 

[barbagris]

It is said that piggy backs shocks will not fit Rockets with panniers, any confirmation?

I can imagine why depending on HOW the brackets affix. My case frames are VERY close to the shock caps.

 

[albertaduke]

Wow so that's what Black Air is. I was wondering that, this place is so educational

imagine going through thick black smoke and seeing your variometer showing 2000 feet per minute rate of descent and you are about 700 feet above ground ... my sphincters muscles are very strong due to the many situations I used them while applying full power on all four and hoping to get out of such predicament

 

[albertaduke]

They look great . If they work too , then even better ! Keep us posted ?

I got an air pump and pumped them to 18 bars or 115 psi now I have to remove the rubber insert top and bottom to match the mounting , from original 12 mm to 16mm

 

[Ishrub]

I got an air pump and pumped them to 18 bars or 115 psi now I have to remove the rubber insert top and bottom to match the mounting , from original 12 mm to 16mm

Sounds like you may blow them:

From the listing for the 13" version I posted
Air Pressure.
Factory 0.4 Mpa - Maximum 0.5Mpa
=
Factory 58 psi - Maximum Max 72.5 psi


Total Length: 370mm (14 3/4")
Length of Eye to Eye Core: 340mm (13 3/8")
Eye Diameter(with bushing): 12mm
Eye Diameter(with bushing removed): 16mm
Eye Thickness: 21mm
Eye Maximum Tensile Strength: 2,000 Kgf
Spring Thickness: 8mm
Spring Width: 60mm
Working Stroke: 68mm
Spring Stiffness: 110 kg
Maximum load: 300 kg (ˆ660 lbs)
Air Reservoir: Adjustable Factory Air Pressure: 0.4 Mpa Maximum Air Pressure: 0.5 Mpa

Gold/Black
2X 340mm 13'' RFY Motorcycle Rear Shock Absorbers Suspension Fit Honda Gold | eBay

 

[Nat67]

I got an air pump and pumped them to 18 bars or 115 psi now I have to remove the rubber insert top and bottom to match the mounting , from original 12 mm to 16mm

Bear in mind air will expand with the heat generated as the shock works , possibly to the point that you blow the seals . Also air contains moisture which won't help the internal components , if at all possible , get them nitrogen filled . They will work better and last longer .
Any top tyre centre or suspension specialist will do this for you !

 

[albertaduke]

Bear in mind air will expand with the heat generated as the shock works , possibly to the point that you blow the seals . Also air contains moisture which won't help the internal components , if at all possible , get them nitrogen filled . They will work better and last longer .
Any top tyre centre or suspension specialist will do this for you !

excellent thinking I will do that when

 

[Ishrub]

They appear to have quite limited travel for their 13 3/8" length at just 68mm (2.68").
Claimed spring rate of 110Kg per inch is 242lb" and only a single rate is provided for an obviously progressive spring. Must be averaged at 2.68" x 110 = 295 Kg (649lb) per side. Could be harsher ride than the 13" HD 444s 3.19" x 170 = 542lb per side using an average 170lb per inch spring rate.

Figures below for Progressive 444's

Order No. Ext. Length " Comp. Length " Travel " Spring No. Rate lbs/In
444-4202B/C 11.50 9.48 2.02 1436-20B/30 210/250
444-4230B/C 11.50 9.48 2.02 03-1317-20B/30 270/315

444-4229B/C 12.00 9.51 2.49 1436-20B/30 210/250
444-4232B/C 12.00 9.51 2.49 03-1317-20B/30 270/315

444-4209B/C 12.50 9.53 2.97 03-1315-20B/30 125/170
444-4233B/C 12.50 9.53 2.97 1442-20B/30 210/250


444-4213B/C 13.00 9.81 3.19 1365-20B/30 120/170
444-4221B/C 13.00 9.81 3.19 03-1318-20B/30 140/200

 

[barbagris]

I got an air pump and pumped them to 18 bars or 115 psi now I have to remove the rubber insert top and bottom to match the mounting , from original 12 mm to 16mm

JEEZ Patrick - Just because Fournales run at 18bar - does NOT mean those do.
The external air adjustment on remote reservoir shocks ARE NOT for Springing.

ime of remote damping reservoirs anything over a couple of bar is enough. Adding more pressure affects the overall damping rate - And ime of Heavy unsprung rears: resisting immediate damping response is NOT a good thing. I'd drop them to 3bar straight off.

Using air SHOULD not be an issue IF the reservoirs have an isolating diaphragm - Which they should do if designed for inverted mounting. The air adjusters pressurise the diaphragm which applies pressure to the chamber on the other side.

 

[Ishrub]

JEEZ Patrick - Just because Fournales run at 18bar - does NOT mean those do.
The external air adjustment on remote reservoir shocks ARE NOT for Springing.

ime of remote damping reservoirs anything over a couple of bar is enough. Adding more pressure affects the overall damping rate - And ime of Heavy unsprung rears: resisting immediate damping response is NOT a good thing. I'd drop them to 3bar straight off.

Using air SHOULD not be an issue IF the reservoirs have an isolating diaphragm - Which they should do if designed for inverted mounting. The air adjusters pressurise the diaphragm which applies pressure to the chamber on the other side.

No one listens to me

Sounds like you may blow them:

From the listing for the 13" version I posted
Air Pressure.
Factory 0.4 Mpa - Maximum 0.5Mpa
=
Factory 58 psi - Maximum Max 72.5 psi

That is just 4 Bar Factory and Maximum 5 Bar