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Home » FJ Specific Parts

RPM Fork Valve
RPM Fork Valve
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RPM Fork Valves

This is the ultimate valve for the Yamaha FJ Damper Rod Forks. This is a true fork valve that convert the stock FJ forks into shim stack valves. The valves are design as a drop in for the FJ with minimal modifications unlike the other valves availble for the FJ. the stock fork springs will not work with this application, see chart in full descrition for the spring rate required based on weight.

Plus, the RPM fork valves are not just a cartridge installation, the are designed using patented Inertia Valve Technology.

The RPM fork valve sits on the top of your stock damper rod forcing through high quality deflection discs found intop of the line shock absorbers. But, when the front tire hits a bump the IVT circuit engages and the bump is quickly absorbed.

Motul 5wt synthetic fork oil is recommended and can be found here:

The following spring rates are recommended based on rider(s) and cargo weight.

Under 170lbs   .80kg Spring  
170-280lbs       .85kg Spring
280 and up       .90kg Spring

One set per bike, sold as a set.

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Price: $235.00

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11 Product Reviews - Average rating 5 / 5 (Show All)

Fast post

- 11/3/2018

These valves are great . My bike handles so much better.

Yep, definitely 'New Bike' day...

- 5/28/2017

Just as Nils says below, so they've done to my 3CV ('89). We have a lot of 'rough surface' roads around my area, that is roads with weathering to the surface, leaving 'pock marks' up to maybe a couple of inches deep. These could always be felt as vibratio...

Made my FJ1100 new!

- 8/18/2016

This transformed my -84 FJ1100 with antidive and 110000 km to a new, tight and comfortable ride. Install instructions are ok when supplemented with some forum posts for rebuilding the fork. Drove some"under construction" roads with real rough...


- 7/15/2016

WOW is an understatement!!!
I use my FJ as a solo (200lb) rider and for two up touring, with my wife sat behind me and loaded hard side bags and top case...but solo or two up, I have never really felt happy with the 'feel' of the front end on my '92 FJ12...

I've really had my eyes opened

- 4/1/2016

I finally got out for a good ride on my 91 with my son on the back. We just explored unfamiliar roads and toured around. Some of the roads were dirt with pot holes.

The 91 had the RPM-rebuilt forks set on the stiffer detent. ‎ I could not believ...

An Essential Upgrade.

- 6/2/2015

These valves, coupled with rebuilt forks and new springs have me wondering why I put up with such a sloppy, vague front end for so long. Easy to fit, all I can say is thanks RPM!

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