Kitchen 450

mb60
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GRAPEVINE, TX, USA

Anyone notice him riding a 450 outdoors. Maybe just getting his feet wet or maybe filling in for someone this summer.

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EAmato88
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Egg Harbor City, NJ, USA
4/8/2025 12:10pm
mb60 wrote:

Anyone notice him riding a 450 outdoors. Maybe just getting his feet wet or maybe filling in for someone this summer.

I assure you one of the title favorites will not be filling in on a 450

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4/8/2025 12:18pm
mb60 wrote:

Anyone notice him riding a 450 outdoors. Maybe just getting his feet wet or maybe filling in for someone this summer.

Kitchen and Masterpool both have 450s to train on. Masterpool posted a video recently on one. 

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burn1986
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bossier city, LA, USA
4/8/2025 12:22pm

Is Kitchen back riding?

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aeffertz
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4/8/2025 12:24pm
burn1986 wrote:

Is Kitchen back riding?

Yep. 
 

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The Shop

sandman768
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4/8/2025 12:28pm

So… a factory 250 is more like a stock 450 than a stock 250 for a practice bike? 

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sandtrack315
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Philadelphia, PA, USA
4/8/2025 12:32pm

Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a 450 to a 250, you really feel like you can throw it around. 

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twotwosix
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USA
4/8/2025 1:03pm

Would be cool to see Kitchen race the last few Supercrosses on the Factory 450.

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Zucchini Nibs
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4/8/2025 1:33pm

What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go outdoors. Deegan seems to have it but if he’s focused on wrapping up a SX title that could be an open door for Kitchen, Vialle, Hampshire, Masterpool, Shimoda, Hymas, etc

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rbm33
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Duncan, OK, USA
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4/8/2025 1:50pm

Kitchen's riding style is definitely going to transfer very well to a 450 whenever that time comes. 

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ML512
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4/8/2025 1:55pm

PC riders always have 450s to burn laps on during Supercross season when their 250s are setup for SX.

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burn1986
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4/8/2025 2:05pm Edited Date/Time 4/8/2025 2:07pm
aeffertz wrote:

Yep. 
 

Awesome👍

He’s probably just glad to be back riding.

Johnny Ringo
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Tombstone, AZ, USA
4/8/2025 2:06pm
What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go...

What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go outdoors. Deegan seems to have it but if he’s focused on wrapping up a SX title that could be an open door for Kitchen, Vialle, Hampshire, Masterpool, Shimoda, Hymas, etc

Deegs is moto’ing down. Check the vlog bro!

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3
4/8/2025 5:17pm
What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go...

What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go outdoors. Deegan seems to have it but if he’s focused on wrapping up a SX title that could be an open door for Kitchen, Vialle, Hampshire, Masterpool, Shimoda, Hymas, etc

Deegs is moto’ing down. Check the vlog bro!

A surprising amount imo. They have been doing 35s not just testing. 

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OldTech
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4/8/2025 5:26pm
Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a...

Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a 450 to a 250, you really feel like you can throw it around. 

Does a factory 250 actually last 10-20 hours?

theraptur712
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4/8/2025 5:30pm
OldTech wrote:

Does a factory 250 actually last 10-20 hours?

No. 

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Zucchini Nibs
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4/8/2025 8:31pm
What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go...

What a panther, so cool to see him back on the bike, at this rate he can get a comfy amount of training before we go outdoors. Deegan seems to have it but if he’s focused on wrapping up a SX title that could be an open door for Kitchen, Vialle, Hampshire, Masterpool, Shimoda, Hymas, etc

Deegs is moto’ing down. Check the vlog bro!

A surprising amount imo. They have been doing 35s not just testing. 

Damn, color me wrong then, 35 minutes of Moto is not a joke

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bens 152
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NZ
4/8/2025 11:05pm

Incredible how quick these guys come back. I still have a bum wrist from spraining it in November lol

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4/9/2025 6:50am
Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a...

Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a 450 to a 250, you really feel like you can throw it around. 

OldTech wrote:

Does a factory 250 actually last 10-20 hours?

PC’s first 4-strokes had a 2hr complete motor rebuild time. I’m sure their current motors are a better. Maybe 5hrs?

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Chris_Buehler
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4/9/2025 6:56am
burn1986 wrote:

Is Kitchen back riding?

You gotta get on Instagram. The comment sections are awful and make this place look downright civil but the the mx content is great. Tomac has a riding vid up too

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Press516
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4/9/2025 7:52pm

I do think his style and technique will translate well to the 450.

Glad to see him spinning laps!!

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Chris_Buehler
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4/10/2025 8:08am
Press516 wrote:

I do think his style and technique will translate well to the 450.

Glad to see him spinning laps!!

I expected him to be much more of a challenge to Haiden last summer

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1
4/10/2025 10:51am
Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a...

Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a 450 to a 250, you really feel like you can throw it around. 

OldTech wrote:

Does a factory 250 actually last 10-20 hours?

They don’t practice on full race motors. 

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ML512
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4/10/2025 10:54am
OldTech wrote:

Does a factory 250 actually last 10-20 hours?

No. 

Red Bull KTM 250 was 15 hours last I checked.

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ML512
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4/10/2025 10:54am
Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a...

Stock 450 is probably economical to practice on relative to having to rebuild a fully built 250 every 10-20 hours. I always loved jumping from a 450 to a 250, you really feel like you can throw it around. 

OldTech wrote:

Does a factory 250 actually last 10-20 hours?

UpTiTe wrote:

They don’t practice on full race motors. 

Some teams do, some don't

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CLT809
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4/10/2025 6:26pm
OldTech wrote:

Does a factory 250 actually last 10-20 hours?

No. 

Respectfully, I think you’d be surprised. A pro circuit rider put 20 hours on one before a rebuild last summer according to his practice mechanic. Let’s look at it in simple terms of parts modified for power:

-valvetrain, typically upgraded for reliability (springs, dlc coated shim buckets or lifters, possibly oversized valves. If anything they’re likely more reliable. 
-guides and seats, moldstar 90 or beryllium seats are FAR less likely to chip and fail. Again, more reliability. 
-rods, upgraded for reliability, maybe a different length, but that’s not hurting reliability and actually a long rod I believe reduces side load on the piston (could be wrong). Switching to plain bearing rod can be less reliable if you can’t generate the needed oil pressure though. 
-pistons, these aren’t really a point of failure on modern four strokes with forged pistons. There’s works pistons that start out life as a standard forging before getting custom profiles and gas ports. I can’t think of a forged piston failure in my 25 four strokes I’ve owned… just cast oem pistons on kawasakis in 2010-14. 
-cams would be the one thing that could cause reliability issues, but these are built by people with crazy resources and knowledge. They can calculate the exact amount of spring pressure needed for each cam profile at the point of highest valve acceleration (not necessarily max lift btw) for a given RPM. Each valve and spring assembly will be measured and documented it’s spring set length and pressure. 
-ECU, this can break stuff REAL quick if the wrong person is programming or setting RPM limits. But a factory team isn’t putting someone on a time bomb, and would likely run motors well past the standard service limits to test what weaknesses exist. 

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