Dirt Bike Tech Tips/How-To: Set Rider Sag

[@EarthSurferUSA]

Transmoto sir: I just picked up a slightly used 2019 YZ250 2-stroke, weigh 230lbs and just set the sag to 105mm. I remember in the old days a second measurement was used to determine if you need a different spring rate. Last, we measured the sag under the bikes own weight, (sans rider). Mine is .625" (about 15.9mm). I think I need a stiffer spring because that number is so low, but I forgot what measurement/number they used to make the decision to go with a different spring. What do you know about it please? Thank you.

[@JonLloyd65]

Thanks for the video... I got the magic number without having to refer to the manual! 104 - 110mm it is! I don't think they are aluminium lock rings by the way... zinc plated steel - yes.

[@EarthSurferUSA]

Zinc plated steel, yes. KTM makes theirs out of plastic I have read in mags, and of course, they are hated.

[@joe0813]

do you set the sag when you pick the bike up from the dealer or after you break in the suspension for about ten hours?

[@tman4tw838]

you do it when you first get the bike and when it gets broken in

[@andrewbecker3700]

If its within spec just ride it for a couple hours and then set it and forget it.

[@paulsimard9543]

I have a ttr230 yamaha and I weight 240lbs it feels like I hit the bottom of the rear shock absorber, how to make it not hit the bottom how to adjust it so it works smothly instead of banging my rear down all the way bang thks HELP

[@zachzimmer6922]

You’ll probably need heavier weight rated springs bro

[@MrEnduroVlogs]

Is static and free sag a big deal?

[@twowheelpilot]

Yes. Huge deal. Wrong sag makes for some odd handling traits.

[@Bowiehair]

Thank you for finally just getting to it. Dozens of videos yammering.

[@micahhook3576]

Does a higher sag number raises the rear? Or lowers it?

[@DonGH297]

More sag = lower rear

[@luzernramon]

great video! very informative :) thank you! (more of Dirt Bike Tech Tips/How to)

[@andrewbecker3700]

My 2021 450f says 1 turn equals 1.5mm. in the manual. Yamaha must have fine tuned the adjustment increments on the 2018 and newer bikes.

[@TheMadMonkey3]

Same, ive got a 18 wr250f

[@davidnewby3263]

im 6 ft 1 and only 65 kg , where should I set this

[@connersnow298]

Awesome vid and edits and filming and bike

[@jeffcornelison888]

Awesome video! 👍

[@SuperOMARKO]

Front?

[@khaccanhle1930]

I have a WR250F, do the turns and measurements here also apply to it?

[@danielc5205]

I know there are WR 450F uncorking videos on KZbin, but as a potential new WR 450F owner, I'd like to see another one including the install of the competition ECU.

[@chrisscullynz]

Even if the tape was on zero there would still be know adding or subtracting, instead of being 180mm it would just b3 80mm, Confusing for no reason

[@RedEmpire36]

Exactly, I have no idea what the point of that was

[@bradyn2193]

im 5’4 and wanna get a yz 125 if i lower it with the lowering link and set sag will i be able to get on foot almost flat?

[@timjim3275]

Probably not im 5,5 and have the lowering link on my yz250f and i cant touch eithier foot

[@zaveok7751]

Bet he’s a ktm fanboy based of the shirt and the tool boxes.

[@dirtbikehub8813]

I hope this is a joke 😂😂

[@zaveok7751]

@@dirtbikehub8813 Na I’m dead serious 🗿

[@c2protect]

KTM "keep the manual" lol

[@eventerry9093]

Blues4boys

[@jswm92]

I don’t know shit or what they are talking about, I adjusted my bike bc I weigh 190lbs, and I am 6ft2. But only adjusted bc I felt the bike was low, I know nothing about sag, I just adjust and rip, seems like overkill to be so specific locked on, I’d love to learn if anyone is willing to help me out

[@EarthSurferUSA]

Yes. setting the sag, (rule of thumb is 1/3 of the total suspension travel), gets your frame geometry, (head angle) where the frame is designed for the best corning and "straight line stability" compromise. But there is more to it than in this vid. As a heavier guy, when you get your sag set, we also measure how much the bike squats under it's own weight. I am 230 and just set my sag, but it only squats .625" by it's own weight., so I think I need a heavier spring with less preload, (which should sag more under the bikes weight). I just don't know what the number is that tells me I could use a stiffer spring. If you want the best handling and suspension action, the work is needed. To me, that also means a safer bike. I just bought a YZ250 after not riding for 17 years, (my 11th dirt bike over my life). After I get some speed back, I will have to go stiffer on the springs. :) Damn, I feel like a friggen beginner right now (rode it once so far, just down a road side). Rusty!

[@randyfebria8498]

Ok for the 5'4 height sir

[@sean.g4516]

Came here cuz I saw da Yamaha

[@Ozfreerider_adventures]

1 turn is 5mm ? Wtf ?

[@wjb111]

Sure doesn’t seem correct 🤔

[@WholesaleTurbos]

It would be ball park, 10mm was 2.5 turns for me.

[@angelparra801]

You guys call yourself pros? stop misguiding people with the tools to use. chisels beats the jam nuts.