Racer X Films: Garage Build 2011 Yamaha YZ250 GNCC Race Bike

Who doesn't love the sounds and smells of two-strokes? For this build we took an older two stroke and did everything we could to make it competitive with modern race bikes.
This time we went in a different direction, gearing this bike for the off-road GNCC series instead of a closed course motocross bike. Instead of racing 30 minutes, this bike was built for technical and tight 3 hour races, which means taking a completely different approach.
Bike: 2011 Yamaha YZ250
Build: Scott Adkins / Chris Vann // prosxmxtech.com
Text: Justin Hale
Photos: Andrew Fredrickson
Video: Justin Hale / Andrew Fredrickson
We decided to spare no expense and build a bike for America’s premier off-road championship: the Grand National Cross Country Series.
Products Used:
POLISPORT
Plastic Restyling Kit
www.polisport.com
FMF
Powercore 2 Exhaust
www.fmfracing.com
MAXXIS
MXST tires (120/90-18 Rear, 90/90-21 Front)
www.maxxis.com
RENTHAL
Ultralight 50T Rear, 14T Front, Kevlar Grips, Twinwall Bars
www.renthal.com
YAMAHA GYTR
Off-Road Flywheel, Brake Line Pinch, Rear Brake Clevis, Axle Blocks, Carb Hoses, Rim Locks, Rear Brake Levers, Spokes, Radiators, Piston, Bearings, Gaskets, Louvers, Trans Cover
www.shopyamaha.com
MOOSE RACING
ProBend Hand Guards
www.mooseracing.com
TM DESIGNWORKS
Slide and Glide Kit with Rollers
www.tmdesignworks.com
FACTORY EFFEX
Graphics, Seat Cover
www.factoryeffex.com
MOTION PRO
Titan Throttle Tube - proprietary low-friction plastic composite material
www.motionpro.com
BOYESEN
Supercooler Impeller and Cover
www.boyesen.com
FACTORY CONNECTION
Suspension Revalve and Respring
www.factoryconnection.com
RK EXCEL
A60 Rims, 18” Rear, 21” Front, Chain (GB520EXW-120)
www.rkexcelamerica.com
IMS PRODUCTS
Oversided Tank, Dry Break Kit
www.imsproducts.com
ENDURO ENGINEERING
Radiator Cages, Braces
www.enduroeng.com
FASTWAY AIR
Ankle Savers, F7 Cleats
www.fastwayair.com
REKLUSE
RadiusCX Clutch
www.rekluse.com
VFORCE
VForce3 Reed Valve
www.mototassinari.com
XC GEAR
Mako 360 Bar Mounts
www.xcgear.com
BRAKING
Solid Rear Brake Rotor, Oversized Front Rotor, Pads
www.braking.com
ARC LEVERS
Levers
www.arclevers.com
XTRIG
Adjustable Triple Clamps
www.xtrig.com
WORKS CONNECTION
Billet Kit Switch, Holeshot Device
www.worksconnection.com
TWIN AIR
Air Filter, Powerflow, Filter Bolt, Radiator Sleeves
www.twinair.com
P3
Carbon Fiber Skid Plate, Disc Guard
www.p3carbon.com
ALL BALLS RACING
Steering Stem Bearings, Chain Roller, Throttle Cable
www.allballsracing.com
BOLT MOTORCYCLE HARDWARE
Two-Stroke Pro Pack Bolt Kit
www.boltmotorcyclehardware.com

[@supermototrolls7344]

This is my type of Offroad Motorcycle video! First half of clip with detailed shots of the bike and explaining the extra parts, second - ripping it with an orgasmic two stroke sound! Hell yeah guys, that's what I want to see more often!

[@imswiney56]

Very cool to see cerakote outside of the firearms industry!

[@rayosteen4339]

hell yeah dude finally a good off road build, a good off road review and rode by one of the best gncc racers. only one thing was missing, a rough estimate cost of how much to build, if it was normies like us building it. dope ass bike tho.

[@ninja_wolfofficial]

I also would love to know the cost to even get a bare minimum gncc ready bike

[@dustinscheller7795]

Yz has the best sounding 250, prove me wrong

[@otisjordan5613]

to me, all 250s 2t sound the absolute same can't hear a difference

[@mxgryan]

I already did

[@garrett3234]

Badass Busta Brown its the exhaust that makes it sound different imo but nothing beats a cr250

[@garrett3234]

Badass Busta Brown yea true i never listen to other brands back to back the whole garage right now is Honda i got 2 yz125s im building though.

[@MemeRider]

I hate cr250's

[@martinmagnusson3700]

Love that there is at least one guy out there that doesn’t wear shades for these types of videos.

[@jonathanmoulton9251]

I had a 07 kx 250 port and polished. pc exhaust, and also jetted. Best sounding bike I heard yet.

[@alexzanderarmstrong]

MXA could learn a lot about how to do a "build" video from this! Review, sound, show, and parts break down. Always room for improvement but great video:) Thanks!! 👍

[@risingeagle915]

Nice vid, BUT why didn't you go into what was done to the motor? (Flywheel weight, woods porting, head mod...) Help us out here. Or was the engine characteristics kept as a MX race bike?

[@OomLourens]

Stunning build, wish my 2011 could look like this one day. Just bought it 2nd and in the process of converting it. Also have some Vids out of me burning gas

[@clintonlied]

You can never trust a review where the person gives a 10/10 rating.

[@phat-kw9ox]

Mabey you just always have to find something to bitch about

[@tmk5522]

This is pretty much exactly what I want to build for my next bike.

[@joshd013]

So was this kept a stock motor other than doing the fine finish in the transmission that’s all that was mentioned other than saying like 3 times it was a lot of work that went into it so what was it racerx???

[@flawlessfoose]

I cerakot my guns, didn't think about that for a bike.

[@flawlessfoose]

@Badass Busta Brown sweet. That is pretty much for a graphic scheme if I remember correctly. I was thinking about it for a cz scorpion I have

[@Community-Action]

Ricky, you get to pop the cherry!!

[@AaronMartinCOOLVIDEO]

Love that YZ250 it looks great I am really want to get a brand new YZ250 I just haven't found the time to go look at 1 or have the money at the moment oh well I will keep enjoying my Yamaha Tri Z 250.

[@codenamenoob4973]

Just get a 2006 yz250 they haven't changed sinse 😜 lol

[@stefanoskam3578]

A very nice and special upgrade for sure !!!

[@devinlaboda2572]

This is a sick build and awesome video! Love it!

[@heller127]

That's too nice of a bike to ride in the woods I'd be afraid of getting it dirty lol

[@NevadaSmith2]

Ayyyyyeee, my lifelong number has been 224 (don’t race anymore but I still run it).

[@mxgryan]

Superb build!

[@flawlessfoose]

One dislike, Damn thumper guys lol

[@tudorcotoi7011]

Make that 25. The 4 stroke army is getting bigger. We need to get on our YZ250s and show em the way back home.

[@garetwhitney760]

Who uses the clutch to shift?

[@Mark147KTM]

I love a custom build!!! KTM 300 the most

[@smokingtires5]

Sick bike

[@linmanh6486]

HELLO BAN NHA.TOI RAT DAM ME LOAI XE NAY BAN BAO GIA TIEN NHE XIN CAM ON BAN.

[@travisswiger924]

Good old wv hills

[@willeypoboy6052]

Sick!

[@AspearMotorSports]

We put alot of good parts on this build. The bike is really good. It's really good.

[@puch7261]

looked up the web for tank dont see it where would i get one from?

[@NICKDOG154]

So sick 😍

[@tmk5522]

That sound clip at the end tho

[@clydejohnson4251]

Love to know the $ amount that was spent on this bike

[@fitzgerald916]

Can you provide more information on this "Pro Gears.com"? I can't find anything on them and I'm interested.

[@mxgryan]

The guru approves.

[@greglesny2663]

what would be the cost of this bike as it seats ?

[@user-ug1vq7vy9o]

How far can a tank of oil go? What is the proportion of oil mixed?

[@RelentlessCo]

大内大内高手 in Yamahas it’s usually 32 ounces of oil to every gallon 32/1 , all depends how the bike is jetted etc

[@keithbell8960]

What riding gear is that.

[@alpetty197]

Answer racing

[@manko330]

the vet i bought the bike from, did all the black power coating looks like crap.heavy and slow,how is the best way to remove the black coating? black makes a bike look old ,heavy and slow.what a waste,

[@SPARKYMAN1979]

Interesting that they didn't use a YZ250X...

[@cb72804]

That rear looks like it could have more rebound it was kinda slow coming back down

[@legowolf22]

People have been Ceracoating their AR's and Glocks for years.

[@stephenwilson1012]

Ah another yz 250 build....

[@RelentlessCo]

Stephen Wilson I mean they’re the best , it’s only right

[@cb72804]

Bike probably has never even been ridden since this video

[@Bredaxe]

I wonder what they do with all these protect builds? They can throw an Enduro bike build my way if they're not not using it.

[@cb72804]

Bredaxe yeah I wish they would, it makes me mad to see bikes that are so beautiful and expensive to just be thrown away it’s such a waste

[@justinhale7468]

I own this bike and it gets ridden weekly

[@parkerblair9785]

First

[@premix3663]

he forgot to mention the 2 stroke is more fun.

[@aandrerod9681]

this is definitely NOT the toughest race😭😭

[@cb72804]

He was going the wrong way in the beginning

[@HenryDarr]

💦💦💦

[@randyreynolds6508]

Rickey is on a factory team. he is bullshitting lol. he definayly would not chose this over a factory 450.

[@paulfritze4672]

maybe if it was his personal bike and for this style of riding

[@justinhale7468]

If you follow Ricky on social. He has started riding two strokes a LOT more ever since this build.

[@mecalpsha4473]

Prefer KTM/Husky they developing 2 strokes and R&D.

[@codenamenoob4973]

No doubt the yz is a good bike but you're absolutely right, Yamaha hasn't really changed theirs sinse 2006. KTM has never stopped developing theirs, I recently got a go on brand new KTM 125. I never knew 125s could go that fast! 😮😂

[@darlyog7385]

@@codenamenoob4973 and ktm is still shit its pretty damn sad

[@fatrickspark1090]

What was the point of putting gas in the bike if yall ain't even top it off... 5:30

[@luisbarreiro316]

dont like the sound of that rekluse thing