2024 KTM EXC Shock Absorber Tuning

Рет қаралды 4,443

Shock Treatment

Күн бұрын

In-depth breakdown of the latest PDS Shock Absorber from KTM outlining problems and solutions.

Пікірлер: 27

@VikVik-je8go 5 ай бұрын

It will amazing to listen you about hardenduro and superenduro settings beyond traditional enduro or tracks.

@learningtofly6804 4 ай бұрын

Agree. Hard enduro.

@shocktreatment5495 4 ай бұрын

We could certainly look at that

@Enduroracesuspension 5 ай бұрын

Great stuff as always Terry very interesting and well delivered

@shocktreatment5495 4 ай бұрын

Glad you enjoyed it

@paulbugden7708 4 ай бұрын

Love your stuff Terry. I've used progressive springs and bladders for 18 years. Bladders are so obviously simpler, supple and highly underrated 👍

@shocktreatment5495 3 ай бұрын

Thanks for sharing

@chrismanley5656 4 ай бұрын

Thanks mate, another great explanation. I’ve been struggling to understand suspension for years and moving disciplines has actually helped quiet a lot. Really cool seeing what I think is a hydraulic bump stomp (from 4 wheeled offroad racing) incorporated into a shock. Avoids an enormous amount of complexity with extra mounts etc. I think I’ve struggled to understand that all the fancy marketing stuff has convinced me that some random new creation is “alien technology”, when the important order is the geometry is correct, the spring rates are correct, the compression is correct and the rebound is correct. Mtb manufacturers talk about geometry, but almost no-one else. People are selling fancy multistage dampening instead.

@shocktreatment5495 3 ай бұрын

In MTB the motor is given the utmost consideration because "You" are the motor..... How power is being generated through the bike is critical to maximising its delivery as well as managing fatigue. The geometry is vital. It's the same for motorcycles but for some reason is largely ignored.

@Avelinoferr 4 ай бұрын

really good!

@shocktreatment5495 3 ай бұрын

Thanks!

@andretorben9995 4 ай бұрын

Great info as usual. I was wondering what is the history of the PDS shock system? Was it Husaberg that originally came out with this and then adopted by KTM ? Seems nobody else does this on MX bikes? Odd that after all this time the manufacturers still haven't got it working right yet ?

@shocktreatment5495 4 ай бұрын

The PDS came out in 98 with KTM. It's not bad but will never beat a linkage

@darinvanderpol3351 4 ай бұрын

Great stuff Terry. Do you have anyone in the U.S. you partner with to duplicate the work you're doing? Very interested in it for my '24 after watching this..

@shocktreatment5495 4 ай бұрын

No one that we partner with. We are the Race Tech importer for Australia but they have their own agenda which appears to be not very open to outside ideas

@rblue387 4 ай бұрын

Is there any books you would recommend reading to improve knowledge on suspension.

@shocktreatment5495 4 ай бұрын

The most comprehensive publication is the Race Tech "Suspension Bible"

@jakeb3025 4 ай бұрын

How does changing the size of the nitrogen bladder affect performance of the shock? Just curious.

@shocktreatment5495 3 ай бұрын

Whether you use a bladder or a piston, the gas will be compressed on the compression phase and will expand on the rebound phase. The hydraulic force acting on the reservior is being generated from the shock shaft entering the shock body. Two things are at play here....force and friction. Hydraulic law.... Force = Pressure x Area. Due to the greater surface area of the bladder, more force is generated making it easier to compress. Add to that the fact that there is almost zero friction from the bladder and you eliminate several unwanted issues that are associated with the piston. If you change the bladder for a smaller or larger item, you also alter the surface area which naturally affects force accumulation.

@ChookChasersMX 5 ай бұрын

KTM goes on about all their engineering and suspension development yet keep doing obviously silly stuff ups. It appears it’s on purpose to sell ‘upgrades’

@rider65 5 ай бұрын

Exactly.

@shocktreatment5495 4 ай бұрын

The forks are great....just need some tweeking. But the shock is a little wierd. Its like no one did a simple push test on the seat once it was done

@nvmcrider8475 4 ай бұрын

$12,00 for a bike and then you need to spend $5,00 on suspension, yet people keep buying them.

@Cookie-pjc 4 ай бұрын

How can we work out which progressive spring rate we need for weight? Presumably it will be different to working out for straight rate ??

@shocktreatment5495 4 ай бұрын

@@Cookie-pjc It's a little different but mostly similar. The force required to suspend both bike and rider at sag level will be exactly the same no matter which spring you are using. But it is safe to say that the progressive spring may have already started to escolate in spring rate prior to sag being achieved....but not by much. So if you could achieve desired sag with a 7.6 kg/mm linear spring, you will be very close, although a little lighter in initial rate with the progressive....perhaps a 7.4 etc

@robertlynch7855 4 ай бұрын

Smartest guy on off-road suspension should be making a mint in the USA but instead he’s locked on a prison colony. Free Terry!

@shocktreatment5495 4 ай бұрын

Ha ha.....I don't mind the chains. I love the US and the American people but I just can't handle the mandatory tipping system.... It has gotten out of hand