racetechsuspension

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@thehooonda Ай бұрын

This is awesome. When will you make a video for the back forks?

@EarthSurferUSA Ай бұрын

My YZ250 has 2mm of a friction zone. If it had 5 mm, I think I would make sure the linkage and swing arm pivot are greased well. The shock length can change with a pre-load adjustment? The rider is in a slightly different position, (or ate, took a dump, etc.), for the other measurement. Have you ever read the "Motorcycle suspension bible" by Paul Thede? lol

@EarthSurferUSA Ай бұрын

Chain too tight? That was a good point.

@BajaTravelerXR650R Ай бұрын

Why worry about pulling a measurement from the center of the axle? Unless the end of the tape fits snug its going to be hard to get the center everytime. Clip the axle nut seems much more logical, but I'm not the "expert". I hope they rebuild bettter than they set up.

@BajaTravelerXR650R Ай бұрын

How about free sag? I've been setting my sag up for 35 years and was scratching my head when the expert was calling out numbers? What was he talking about?

@EarthSurferUSA Ай бұрын

I call sag "rider sag" (rider on the bike), and "bike sag" (just the bike weight. The bike sag is used to tell you if your spring rate is good. After you set the rider sag, measure the bike sag. If it is under 15 mm, you need a stiffer spring. If it is over 25 mm, you can use a weaker spring. Those are old school numbers before the bars were rotated forward (a free style set up basically), and riders are riding a bit more forward on the bike. That "teases" the front end "trail", so riders are going to about 105 mm or a bit more (used to be about 100 mm), and accepting up to 35 mm of bike sag. I am too old of a dog to try new tricks (don't like crashing), and the bike geometry is basically the same since 1982,---so you can set it up either way. I stick with what I know at my age. :) Doug in Michigan

@Ramons187 2 ай бұрын

I can't believe i have never seen this. Thankyou sir this video will become a weekly watch for me and my son!

@gusjordaan9909 2 ай бұрын

Great info thanks RACE TECH

@joshuaalley5925 3 ай бұрын

I need a stiffer ride. to much sag in rear suspension. I’m 225 lbs so I don’t know if I need to buy a stiffer spring or just do the math and adjust accordingly. Also need to adjust the front suspension for a an overall more sporty ride. Any help much appreciated. I have a 2022 gas gas Mc 450f with WP suspension.

@rebelliontotyrantsisobedie5602 Ай бұрын

You def. need a proper spring for you weight , stock spring is good up to 190lbs

@EarthSurferUSA Ай бұрын

You need stiffer fork springs and shock spring. I had the same problem starting riding again after 18 years off, and 40 lbs more (220 at the time). If you set the sag on that soft rear stock spring (sag will be the same no matter what spring you use), the front will be so low, the bike front end is really "nervous", (because you lost front end "trail", part of "rake and trail", that keeps the wheel steady). Te Race tech site has a chart for rifer weight and spring rate. Do that first, before any other adjustments. There are no adjustments that would fix my soft stock springs with that weight.

@EarthSurferUSA Ай бұрын

@@rebelliontotyrantsisobedie5602 That depends on the bike, but I would say 190 lbs is the high mark for stock springs on the stiffest bikes. 180 probably is more true for most people on a stock 250 or larger bike.

@joshuaalley5925 Ай бұрын

@@rebelliontotyrantsisobedie5602 it’s a 450 and it’s a factory bike.

@joshuaalley5925 Ай бұрын

@@EarthSurferUSA thanks for the advice

@scottsheppard4735 3 ай бұрын

Go ahead🤙

@UTPP 4 ай бұрын

Great explanation, thank you.

@justinpennella9166 4 ай бұрын

Thanks Paul! Disappointed that you don't make one small enough for a set of XR100 forks!

@macmacc7402 5 ай бұрын

I am 220 pounds. How do I calculate my SAG number? How would I calculate it for somebody who is 150 pounds?

@EarthSurferUSA Ай бұрын

Get the right spring rates for the rider weight first, before any other adjustment Then set the sag for the best bike handling, (last, the clickers for fine tuning, and that can get complicated) I like the rear sag closer to 100 mm than 105, so I don't always need a berm to turn. :)

@daddy-fat-sack3218 7 ай бұрын

this guys explains it very well ill be sending my suspension to race tech!

@TheSpainy 7 ай бұрын

Is this asfalt only or would that completely change these settings?

@andrewauman40 8 ай бұрын

Ok this still doesnt answer where your sag should be set at 😅

@justinreid1986 8 ай бұрын

Check your owners manual

@rebelliontotyrantsisobedie5602 Ай бұрын

@@justinreid1986 He said set at 96mm standing up.

@robinator503 8 ай бұрын

Yes

@paulhetherington3854 9 ай бұрын

/sF(x)= p'''(z= bcvR'''itTn) + {sfr : frqs} < labx id mtrx cvIIIr'R''' abv 4/ /cF(y) int = avn cg(xz) sM(R'''cvk)//> P'parch id mtrx(II ljz' + III ljx int= sF(x)) dbl paavlow || kon/

@paulhetherington3854 9 ай бұрын

RT'TECH' = MOHYK' - RKN'TN'-- Learned in! That mean: "You will be, damn destroyed!"

@paulhetherington3854 9 ай бұрын

And my PHAMZ, and I, "Own KTM!" Cannot claim - any of thee - ABOVE! YZ= frame || HRC motor! They didn't mention - any YZ chas? Not even - them crazy AMA! AMA = "I attacked eu!"

@GNX157 10 ай бұрын

You should at least mention checking the static sag after doing the rider (dynamic) sag. Status is the sag from extended to compressed just by the weight of the bike, no rider. If your manual says the bike is equipped with a rear spring for say a 165 lb rider and that’s not you, then you go adjust your dynamic sag, then your setup may end up too far from acceptable, because you’re too light, or more likely too heavy, say 200lbs.

@wyeska1440 10 ай бұрын

Paul 86rm 250 article I remembered him modifying thr Suzuki withe highly resistant linkakage he had polished and harden .but I was wondering if thehe knows the kx250 2005 Aoss kyb mid stroke shim positions since mine fell apart with it coming off

@KibberShuriq 11 ай бұрын

I wonder if it would make sense to put a series of smaller additional holes in the damper rod higher up on the rod (rather than two large holes right next to original ones), to progressively increase compression damping (and decrease rebound damping) as the fork gets more and more compressed. Seems like it could provide additional protection against bottoming out while not affecting handling in the middle of the suspension travel.

@martindekker8203 11 ай бұрын

Can you tell me the setting on these emulators please. Eg: tightening the spring = ? Loosening the Spring = ? Cheers

@soundsgood5824 11 ай бұрын

wow,no wonder why they charge 2k for a pair of forks on the bigger bikes

@vintagetrikesandquads4012 Жыл бұрын

What about rebound damping? Does drilling the damping rod make rebound quicker? I'm installing heavier fork springs so I also need more rebound damping.

@KibberShuriq 11 ай бұрын

According to Racetech's website, rebound damping is not affected much by installing the emulators, so you'd need to play with the oil weight

@davidciesielski8251 Жыл бұрын

Thanks

@___asd159gh43 Жыл бұрын

Put your richard on your bike

@EarthSurferUSA Жыл бұрын

This vid would have helped me in my 80's racing days. Especially with mental attitude. I was a different (and slower) guy on race day. I could beat or keep up with my buddies on our practice tracks, but had a real hard time riding to my actual level on race day. But I am happy to say I did win a couple races,---with no confidence. lol

@EarthSurferUSA Жыл бұрын

3:55 Good saying. I have another similar. "The day you think you know it all, is the day you have a lot to learn." :)

@EarthSurferUSA Жыл бұрын

After much thought after riding again after 18 years off a bike, it seems to me there are 2 was of setting up your bike today. 1) The new way, people ride more forward with handlebars rotated forward, and to compensate for that, they are running more rear end sag (105mm or more), and more static sag (about 35mm). I don't like the way the front end feel in corners with the bars up that high so I went back to our old set up. 2) rotate the bars back down so the ends of the grips are pointing down a bit, (corners so much easier for me), and get the sag set between 95-100mm, with the static sag at about 20-25mm.) I see a lot of amateur kids with go-pros on the modern tall bikes with high bars, who can't corner worth a crap, and pretty much have to have a berm to turn at all. Even in the C class in the 80's, there would be a couple of slow guys, but I have never seen so many slow guys in the corners as I do today. Like everybody.

@barnescycle Жыл бұрын

Thank you for this post, I just check my sag after the holidays and now that my bike has 35 hrs and my sag was 120 with 45 free sag. I'm now at 25 free sag with 105 107 race sag but after reading your comment and how I struggle with rutted turns I'm debating on running 95 sag

@EarthSurferUSA Ай бұрын

@@barnescycle I would not make that big of a jump at first. But I bet 100 mm of rear end sag is a good place to start. I lowered my YZ250 suspension .75" o each end, and found 98 mm is the sweet spot for the stuff I ride on. I can feel it if the spring sacks a bit to over 100 mm as the front end wants to push on flatter corners. Under 98 mm, and I can feel it tuck easier.

@EarthSurferUSA Ай бұрын

Also, I don't know who much you weigh. But you will want to make sure you have good spring rates for your weight, before you do anything else. A heavy guy, on most stock suspension, especially after setting the rear sag, will feel so low in the front, the bike can become un-ride-able. I never noticed that when racing for a decade at 180 lbs. But a new bike years later at 220,-----oh boy did I learn. :)

@rockdodge9397 Жыл бұрын

I have a 99 vmax with progressive spring. I know racetech sells flat rate springs but my progressive springs are practically new. Researching i find mixed results on in the cartridge emulators are compatible with a progressive rate springs. Are they compatible?

@KibberShuriq 11 ай бұрын

Progressive springs are good for comfort when riding in a straight line on a smooth road; they are bad for handling though, especially when braking or on rougher roads. They are just as bad for stock damper rods as they are for emulators, and putting the emulators in would still make your handling better, it just won't be as good as it would be with straight rate springs.

@SkillCollectors Жыл бұрын

Thank you for having these videos online and free to view.

@michaelwendler5589 Жыл бұрын

I understand that you guys are the suspension gurus... but what about free sag? This should of been discussed so that other people have an understanding of whether they have the correct spring rate for their weight.

@EarthSurferUSA Жыл бұрын

True. It's a new generation. I can go through a MXA mag today with a red teacher pen when they write about anything technical, but the problems are in every industry today.

@ErikISkogen Жыл бұрын

How about the front?

@Vank508 Жыл бұрын

My sag is 55mm. I just ordered Race Tech 5.4kg shock spring. I weigh 155lbs. Am I going in the right direction? Should I get the gold valve also?

@EarthSurferUSA Ай бұрын

Ride with a fat GF on the back. :)

@danieleduardovaladezmartin8004 Жыл бұрын

Who are you who are so wise in the ways of the science?

@yellowdemon16vt74 Жыл бұрын

I have this on DVD 😁

@scottycook9907 Жыл бұрын

Go ahead!

@jontom6375 Жыл бұрын

I watched this almost every day after school for a long while. Still talk about it to this day.

@scottbolen5246 Жыл бұрын

Could you do one on front spring pre load? KYB.

@scottbolen5246 Жыл бұрын

Glad to see fresh tips here. Love my gold valves and set up. Keep em coming.

@emexduzentos Жыл бұрын

He forgot to tell you that in competition first place is the first loser (in life).

@EarthSurferUSA Жыл бұрын

Really? Do you have any examples?

@emexduzentos Жыл бұрын

@@EarthSurferUSA Cemeteries all over the world have lots of examples.

@tom97zr2 Жыл бұрын

Ktm triple clamp Fork pinch bolts 106 inch lbs lower clamp bolts & 150 in lbs for the upper. Honda lowers are 180 in lbs, 192 upper. Yamaha 168 in lbs lower, 204 in lbs/17 ft lbs upper.

@mxcollin95 Жыл бұрын

Good stuff. 🤙

@davidbailey6343 2 жыл бұрын

Good stuff Paul. I just saw this after all these years and it’s still valuable and I’ll bet overlooked..

@erikerik5552 2 жыл бұрын

Luar biasa teknologi cnc

@dougfresh1341 2 жыл бұрын

Some YT techs (lol) are saying to plug the tiny rebound hole at the top of the damper rod. True??? Racetech says nothing about the little hole.

@KibberShuriq 11 ай бұрын

Look up "DAMPING ROD FORKS and EMULATORS HOW THEY WORK" on Racetech's website. Plugging that hole will make rebound damping extremely high since the oil would have basically no way of escaping chamber B.

@stephenpartida4683 2 жыл бұрын

Too the MOON! THANKS PAUL!

@tamusbaby 2 жыл бұрын

Dude,,,,, genius. To make something "simple" to address something so complicated..... and guaranteed. Thank You for sharing.

@ut1004bp 2 жыл бұрын

Hmm, no talk about rebound or the effects of rebound vs improvement to compression with this device

@chadridsdale9970 2 жыл бұрын

When I replaced the springs in my wife's bikes and was offered this option. I turned it down. Now that I know more about what they do... I will say yes

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