Weight Savings 2020 YZ250F

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10/31/2020 7:51 AM

Looking for everyone's input on this. List all your ideas on how to trim down the weight on the 2020.

List them starting with the least expensive to the crazy stuff. Want to hear them all!

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"I love the smell of race gas in the morning"

10/31/2020 8:05 AM

Jenny Craig

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10/31/2020 8:12 AM

JWACK wrote:

Jenny Craig

They say that decapitation is the quickest way to lose 25 lbs. of ugly fat.

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Go for it! Don't let a little thing like fear, or common sense hold you back.

10/31/2020 8:24 AM
Edited Date/Time: 10/31/2020 8:25 AM

Hoosier tires. Full titanium exhaust. Aluminum or ti pegs. You can get all you m6 non weigh bearing bolts in Ti from eBay or alibaba.
https://m.vitalmx.com/forums/Moto-Related,20/updated-list-of-tire-weight-lightest-mx-tire,1368215

Light weight tires and these mountain bike tubes will probably affect handling the most.

Ti motor mounts

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10/31/2020 8:31 AM

There is a discount code somewhere on here for mettec titanium

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10/31/2020 9:02 AM

JWACK wrote:

Jenny Craig

SEEMEFIRST wrote:

They say that decapitation is the quickest way to lose 25 lbs. of ugly fat.

grin sideways
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10/31/2020 9:10 AM

BeachBody works wonders lol

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10/31/2020 9:46 AM

JWACK wrote:

Jenny Craig

Hey, I resemble that remark.. smile

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"I love the smell of race gas in the morning"

10/31/2020 5:15 PM
Edited Date/Time: 10/31/2020 5:55 PM

Replacing any steel with Titanium.

Not cheap, but effective, largely without downsides (For eg: Potentially light weight tires are inferior to other options. Etc)


As mentioned - exhaust.
Axles are “unsprung” so double benefit.
Suspension pivots and foot pegs have potential due the larger mass.
M8 size bolts - Brake calipers/Triple clamps. (Unsprung/Moves with steering - so makes more “difference”)
Ti rear spring is a useful saving.

Lightweight seat foam saves weight, and it’s from high on the bike.

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10/31/2020 5:26 PM

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10/31/2020 5:42 PM

Mount up some Hoosiers...un-sprung and rotating weight...huge difference in acceleration and braking

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10/31/2020 6:10 PM

CRM subframe and Karbotank

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10/31/2020 6:25 PM

What about an aftermarket battery? Any free mods you can think of? Thanks for the responses and keep em coming..

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"I love the smell of race gas in the morning"

10/31/2020 6:34 PM

Free mods? I’ve heard of teams shaving every unnecessary ridge, seam, and casting line before in order to cut minuscule amounts.

You could remove and drill the head of your OEM bolts I guess 🤷🏻‍♂️😂

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10/31/2020 6:36 PM

skypig wrote:

Replacing any steel with Titanium.

Not cheap, but effective, largely without downsides (For eg: Potentially light weight tires are inferior to other options. Etc)


As mentioned - exhaust.
Axles are “unsprung” so double benefit.
Suspension pivots and foot pegs have potential due the larger mass.
M8 size bolts - Brake calipers/Triple clamps. (Unsprung/Moves with steering - so makes more “difference”)
Ti rear spring is a useful saving.

Lightweight seat foam saves weight, and it’s from high on the bike.

How are lightweight tires "inferior" to other options?

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10/31/2020 6:40 PM

skypig wrote:

Replacing any steel with Titanium.

Not cheap, but effective, largely without downsides (For eg: Potentially light weight tires are inferior to other options. Etc)


As mentioned - exhaust.
Axles are “unsprung” so double benefit.
Suspension pivots and foot pegs have potential due the larger mass.
M8 size bolts - Brake calipers/Triple clamps. (Unsprung/Moves with steering - so makes more “difference”)
Ti rear spring is a useful saving.

Lightweight seat foam saves weight, and it’s from high on the bike.

Good stuff and theory, thanks! My 06 had a Ti spring but haven't seen one since. Who sells them?

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"I love the smell of race gas in the morning"

10/31/2020 10:05 PM

spimx wrote:

How are lightweight tires "inferior" to other options?

“Potentially” inferior.

Maybe the grip doesn’t feel as good. Maybe less durable. Maybe light weight and superior in every way.
The Tubes are perhaps a better example. GENERALLY lighter tubes feel better to ride with, but heavier tubes are more durable.

The point I was making was there “may” be a compromise with some components. (EG tires/tubes) but the only compromise between a steel and Ti Exhaust is dollars.

Some Pro riders can apparently feel the difference (Flex?) between steel and Ti axles and/or swingarm pivots. Utilising Steel for preference, despite the weight penalty.

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11/1/2020 4:33 AM

Air forks.

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11/1/2020 7:29 AM

Ti exhaust and axles would be my first thought. Ti spring maybe?

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11/1/2020 5:23 PM

(sorry, shameless plug)

We have one set of our Gen1 Yamaha triple clamps left, and those will save you 351 g (0.77 lbs) vs. stock. They're on our closeout page here for $500 with bar mounts:
https://luxonmx.com/product-closeouts.html

Photo


Or our new Gen2 Yamaha triple clamps will be available on our website in the next couple of days. They save 438 g (0.97 lbs) vs. stock, and you'll get our latest design with a split lower clamp ($879.90 with bar mounts):

Photo

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Billy Wight
Luxon MX
@LuxonMX
https://luxonmx.com
Motocross Components Engineered for Performance

11/2/2020 4:15 AM

Teams spend 10's of thousands making bikes lighter
Rider adds:
GoPro
Litpro
Heart rate monitor
Watch

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11/2/2020 4:28 AM

KYB PSF1 A-kit air forks from Techical Touch. 1750€ for a brand new set. https://www.technical-touch.com/kyb-kit-air-fork-yzf-14-162017001001

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11/4/2020 4:21 PM

Richard Tease II wrote:

Teams spend 10's of thousands making bikes lighter
Rider adds:
GoPro
Litpro
Heart rate monitor
Watch

that might add 1 whole pound.

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11/4/2020 6:04 PM

IMO the cost of the trimming weight on a modern race bike is a waste of good money.

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11/4/2020 6:06 PM

TheGetFresh wrote:

that might add 1 whole pound.

Got any idea how much it costs to cut a pound using Ti ??

I brought up the same thing about riders adding random weight in another thread and got roasted by the Vital brain trust.

Teams spend and test and tweak infinitely to have as light of bikes as possible, riders instantly strap the biggest heart rate watch on the market to the handlebars 🤣

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11/4/2020 6:23 PM

I would honestly start with an aluminum rear axle nut and washer like the ktms come with. They are super light compared to the steel ones Japanese bikes come with. light weight tubes, rim locks and tires are the best bang for the buck though.

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11/4/2020 7:11 PM

Titanium Rotor Bolts are $18 per wheel on RockyMountain.

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11/5/2020 9:19 AM

We do not have the stock radiator hoses to compare weight to but typically a silicone radiator hoses weigh less than stock rubber hoses.

Our YZF Y hose kit eliminates the stock steel Y fitting with a smaller aluminum fitting and 1 clamp comparing our Y kit to stock shaped hoses with the steel fitting the Y kit weighs 4 ounces less

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11/6/2020 6:16 PM

MX-Tech Natty Shock will be good for a 1lb or so, another 2lbs with their Lucky Kit

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11/6/2020 9:19 PM

Richard Tease II wrote:

Teams spend 10's of thousands making bikes lighter
Rider adds:
GoPro
Litpro
Heart rate monitor
Watch

TheGetFresh wrote:

that might add 1 whole pound.

Weight effects every aspect of the bike.
Makes the power more effective, make the brakes more effective, makes it handle better, and makes the suspension work better.

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