Jack hammer varg forks

[Johnny Depp]

Nice family pics, haha. You removed 150 CCs out of each fork leg?! I'm no suspension tech, but I read that the total capacity of each fork is like 325CCs. Motocross Action Magazine says to remove 10 CCs, the maybe up to 10 CCs more for a total of 20 CCs per fork leg. I removed 15 CCs and it made a nice difference, but I may remove another 5 CCs. You may want to call a suspension shop that works on KYBs and see what they say about all that.

I did the same thing with my Beta KYB’s. It’s just tuning the air/oil chamber.
Oops

 

[Philip]

investing in Motoclick Ai for sensors and software

Thanks for the interesting tip! It is always nice to see various motocross engineering companies popping up!

Motocross Suspension Setup with Motoklik

Motoklik is an easy to use, easy to fit, robust suspension setup, suspension data and lap-timing system for enduro, motocross and supercross.

www.motoklik.com

Running 10 psi and happy with the stock tires, with the front wearing faster than the rear, which is unusual.

WHOA!!! The stock tires are feather-light, have very thin sidewalls, and almost no vertical stiffness without a high air pressure. You are probably riding on rims about half of the time and the tires are rolling under the bike in all flat turns! If you hit a bump, the contact patch turns onto a single point of contact, the tire loses traction, and the suspension deflects harshly and unpredictably.

I switched to much stiffer sidewall Bridgestone tires at 12 psi, and that still wasn't enough of air pressure for me. I gained a lot of consistency and confidence when I started pumping them up to 13 - 14 psi in the front and about 13 in the rear. In racing, I set tire pressures not for ride comfort but for traction and predictability.

Are you running 10 psi front and rear? How long do the inner tubes last, and have you had any pinch flats yet? My stock inner tubes with stock tires lasted only about 10 laps at 12 psi before the rear blew up on the take-off of a jump and I landed almost sideways.

 

[Johnny Depp]

Thanks for the interesting tip! It is always nice to see various motocross engineering companies popping up!

Motocross Suspension Setup with Motoklik

Motoklik is an easy to use, easy to fit, robust suspension setup, suspension data and lap-timing system for enduro, motocross and supercross.

www.motoklik.com

WHOA!!! The stock tires are feather-light, have very thin sidewalls, and almost no vertical stiffness without a high air pressure. You are probably riding on rims about half of the time and the tires are rolling under the bike in all flat turns! If you hit a bump, the contact patch turns onto a single point of contact, the tire loses traction, and the suspension deflects harshly and unpredictably.

I switched to much stiffer sidewall Bridgestone tires at 12 psi, and that still wasn't enough of air pressure for me. I gained a lot of consistency and confidence when I started pumping them up to 13 - 14 psi in the front and about 13 in the rear. In racing, I set tire pressures not for ride comfort but for traction and predictability.

Are you running 10 psi front and rear? How long do the inner tubes last, and have you had any pinch flats yet? My stock inner tubes with stock tires lasted only about 10 laps at 12 psi before the rear blew up on the take-off of a jump and I landed almost sideways.

I’m splitting my time between tracks and trails, and comfort is a priority trying to overcome the harsh suspension. 15 hours on the bike, front tube lasted an hour, rear is still red, 18”. I’m 67, and C level trying to find my old speed, but with nothing to prove. Tried 13 psi and it was too harsh. No rolling noticed, been slamming rocks and roots and mesquite thorns. I’m planning on a 6 ply fatty front and a scoop rear, had a Pirelli Scorpion and it was awesome on my 300 TX. Not hating the stock tires, really surprised the rear hasn’t worn or shedded knobs, but I don’t spin it up.

 

[Johnny Depp]

Moving the axle back seems to have had a positive effect on the rear suspension. More leverage, probably increased sag. You don’t have to stand up for roots and rocks anymore.

 

[OpaTsupa]

I did the same thing with my Beta KYB’s. It’s just tuning the air/oil chamber.
Oops

When I removed 30cc from the total 330cc out of Beta KYB fork it made it feel like riding in socks. I could feel every stone and no improvement in handling or the mythical plushness.
Having to remove 150cc or nearly 50% of total indicates that there may be some other issue.

I'd say the same for 10psi in front tube. Even without puncture or damage to the rim, the feedback from the tire is mushy and insecure.
But I suppose we all have some odd preferences that seem to work.
Carry on.

 

[Johnny Depp]

When I removed 30cc from the total 330cc out of Beta KYB fork it made it feel like riding in socks. I could feel every stone and no improvement in handling or the mythical plushness.
Having to remove 150cc or nearly 50% of total indicates that there may be some other issue.

I'd say the same for 10psi in front tube. Even without puncture or damage to the rim, the feedback from the tire is mushy and insecure.
But I suppose we all have some odd preferences that seem to work.
Carry on.

There are no shims at the bottom of a KYB fork, only some have a hydraulic bump stop, so the oil is primarily for tuning the hydraulic chamber. I use a dry erase marker on the fork sliders, and if I am not getting full travel then more oil comes out until I get the full 12" I paid for. Air will compress, oil won't. 2nd bike I've done this with no bottoming or mushiness. It has no effect on the first few inches of travel, only bottoming.
Lower tire pressure bring plushness, hard Enduro guys run 2-3 psi all the time.

 

[Osika]

I felt since JBI has put so much work on the Varg Forks, made sense. They preform great now..ordered mid settings and great for mx or fast trails now..no more harshness on choppy ground and still work properly on all other conditions.

 

[Johnny Depp]

I felt since JBI has put so much work on the Varg Forks, made sense. They preform great now..ordered mid settings and great for mx or fast trails now..no more harshness on choppy ground and still work properly on all other conditions.

How much ? Did you buy the JBi spring perch? He has certainly done a lot of work on Starks, so should be on target.

 

[Osika]

How much ? Did you buy the JBi spring perch? He has certainly done a lot of work on Starks, so should be on target.

$460 about $120 shipping. No perch

 

[markhamr]

The problem I have is the more I soften it the more it turns into a sack of potatoes,
sagging under its own weight.Transition /Steering turns to crap.
I run 12.5 lbs tyre ppressure the bikes tooo heavy to run any less(MX)
maybe ok if your riding slow
Freight would be a killer from au or my suspension would have been to JBI already

 

[Osika]

That is what the JBI revalve does, just softens where needed. I tried all clicker settings and wasn't doing it.

 

[Osika]

About how much freight from Australia?