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Just a note I wanted to add here.
I had never heard of JBI suspension before seeing this thread and it caused me to go look at their site and research their parts. I watched a bunch of their videos and I ended up buying and installing their bladder conversion kit on my 24 GG350 shock a few weeks ago. The thing is like a work of art for sure. Need weather to turn here in Ohio to actually get some time on it but I'm sure I'll like it.
Hey Crash82,
I just tried variations of that Website address you put, with no luck.
Also, tried Barber Motorsports site, and it's not listed in their calendar for March .
If I would have known that this event was at Barber this year, I probably would have gone to Daytona, as I had a friend racing in the Super Hooligans. I should have made an effort.
I really want to get to Barber, for the Museum, and for the Vintage Racing on that beautiful track ( not sure if the event you mention is the Big one I learnt about last year), Going over for Daytona , with a 2 week gap to going to Barber, would be a great trip to The South East - a part of America I've yet to get to. One more trip to the USA is probably all I can manage, for some time, with my having to look after my Mum, as she descends further into Alzheimer's and other issues. I'm making sure she can stay at home, and Not in 'care', in her final years.
PS - I found that Clubs FB site - brains not working, it's been a trying day with some things. Today, I am, a "Bear Of Very Small Brain" !
It's not the Big Swap Meet type event that's around October(?) but, if the race is on next year, it would make a trip to Daytona more than just that. Thanks for putting the event up!
How difficult was this install? I assume you need nitrogen, any other special tools?
i dont think you need special tools, at least not on the yamaha, I did my rear shock, and then just brought it to my local shop and tossed the guy a 20$ to fill it with nitrogen
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Well in context I've been doing my own suspension for like 20+ years and more if you want to count changing fork oil going back to the 80s. So I have most all of the tools needed.
It was more difficult than I was anticipating loosening and removing the stock WP reservoir. I've seen a lot of people doing it with strap wrenches but I couldn't budge it even with a ton of heating. I ended up getting the Ktech WP reservoir tool to get it off.
The biggest issue on doing any shock is proper bleeding.
My bad! https://www.millcreekmx.com/ Also go to SEVMX https://www.facebook.com/SEVMX I'm racing the whole SEVMX series, it's a super cool bunch and the tracks are a little tamer for old guys I'm 62 now. The Monster Mountain rounds are can't miss, the Vintage track is some of the best dirt ever when Mason Cole preps it.
3 rounds at Barbers this year this weekend is the first one, 2 days 3 moto's combines for your score. I'm not sure why Barber's doesn't have much on it. Round 2 is during Vintage days and will be insanely packed. Allen McWilliams built the track and is running it, he use to own Millcreek MX before they sold it.
Here's a killer Vintage moto from Barbers. These dude were going at it
https://www.youtube.com/watch?v=ptPw8O71Dd0 Sorry for hijacking the thread.
Mine was KYB and it was my first time. I got the compression adjuster removal tool and was glad I did, for me bleeding was the hard part because I wasn't sure if I did it right. I did it the shock standing straight up way first then was unsure so I removed the compression adjuster the next day and bleed it like that then got some more bubbles out. Super happy with the results.
Cool video and cool track. Any track with elevation changes is 10X more fun than one that doesn't for some reason. That #341 white Yamaha was moving some dirt. The rear wheel wasn't finding much traction and he was sliding all over the place. Really, just an old 250cc moving that much dirt??
I have been studing the JB site for sometime and now I am installing the Volume Spacer the the JBI Pro Perch. The Volume Spacer was a bit of challenge getting to the final location. Had to get out some mini spoons! Will it be benifcial - we shall see! I am venturing that it will be oil level sensitive and since I am under 145 in the kings cloths there will be some testing. The spacer is worth about 40cc to 45cc from what I understand. This setup goes on my 24 YZ144X. If I like it, I will mod my YZ155 and then my Triumph
What was the oil level that JBI recommended for you with the spacers? Let us know how you like the ride when you test them out.
Spent last weekend testing the JBI Volume Spacers (VS).
FC had my oil at 300cc, so I started there. At my weight (165 lbs with gear) it was too much oil. Had my son ride it (220 lbs with gear, top-level local pro)—same feedback: too much oil.
We removed 50cc per leg and rode again. The difference was immediate—the fork now moves through the stroke without the mid-stroke feedback I’ve always felt that “push back” into the bars and upper body and really disliked it. It now settles and tracks.
As I understand it, the VS reduces air volume, increasing end-stroke progression. By lowering the oil, I delayed when the fork engages the outer-chamber oil (spring perch interaction), which removed the mid-stroke interruption.
For my setup (lighter rider), mid-stroke behavior improved more from oil height and volume control than from changing shim stacks. Once that was balanced, the clickers became effective again.
Still some fine tuning to be done! For me the big gain is that the forks settle much better when I corner and flow through the stroke consistently!
The Titanium Perch is also installed and I did some big offroad drops and the perch allowed the fork to come with in an 1 1/4" of bottoming. So there is room for a gotcha drop!
Now I will put this setup in my two moto bikes.
With all the rain we have been having in the northeast the last 2-3 weeks, it has taken me longer to get some time on the JBI fork set up with their innovative Pro-Perch. So far, it has been a positive experience. The forks are plush in the initial and mid-stroke.. really cushy in the mid-stroke yet with really good bottoming resistance. So the parts do seem to work and provide a feel that is slightly different than the forks on my other bikes. Only concern I have is I have yet to use the last 0.5 - 0.75 inches of travel even with some heavy hits as they really ramp up the last 25% of travel, and I am wondering how hard a hit is needed to get these things to bottom.
Pit Row
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