How do the pros get their tires to keep spinning so easily?

Bogett287
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Bogett287
Was at the monster million Saturday and noticed the guys washing bikes the wheels just kept spinning so freely. I would do anything to get mine to turn so free. Wasn’t sure if they had special bearings or what. Thanks for info
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Tomok
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Tomok 10/22/2019 6:21pm
10/22/2019 6:21pm Edited Date/Time 10/22/2019 6:22pm
Back bleed the brakes.
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misterwaterfallin 10/22/2019 6:30pm
10/22/2019 6:30pm
Cryo treated bearings cleaned and refreshed every round along with the trans receiving the same service. My front goes crazy on the pressure washer like you mention, the rear with all that drag is different and it barely gets going
garagedog
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garagedog 10/22/2019 6:49pm
10/22/2019 6:49pm
New bearings, new chain and brakes that don't drag.
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reded
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reded 10/22/2019 7:30pm
10/22/2019 7:30pm
I’m not sure why but the rear wheel on my 350 spins like it has no chain attached. It’s honestly amazing how little drag it has while my 450 wont go two revolutions before grinding to a halt with new bearings and the exact same chain/sprocket setup.
MX690
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MX690 10/22/2019 8:54pm
10/22/2019 8:54pm
Your front should spin freely unless your brakes are dragging, and I could be wrong but I'm pretty sure the pro's don't use O ring or x ring chains on the rear they drag to much, non O ring chains have very little drag that's why the rears spin freely when being washed.
harescrambled
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harescrambled 10/23/2019 1:21am
10/23/2019 1:21am
MX690 wrote:
Your front should spin freely unless your brakes are dragging, and I could be wrong but I'm pretty sure the pro's don't use O ring or...
Your front should spin freely unless your brakes are dragging, and I could be wrong but I'm pretty sure the pro's don't use O ring or x ring chains on the rear they drag to much, non O ring chains have very little drag that's why the rears spin freely when being washed.
Why use a sealed chain when you get a new one put on every time you ride the bike? Definitely less parasitic drag with a solid roller chain though
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Honda Man 66 10/23/2019 6:29am
10/23/2019 6:29am
Push on the rear caliper until it opens up a little bit. I also do this before removing the rear wheel. Makes it easier to put it back on.
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dmm698
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dmm698 10/23/2019 7:59am
10/23/2019 7:59am
My yz 250 rear wheel will spin like a front wheel - Its because I have a standard chain , non sealed. My 450 rear wheel struggles to spin with the pressure washer, because its an x ring chain. as a mere mortal I dont notice the extra mass on the 450 and im not using all the power anyways. Less drag the better on the 2 stroke.
OldPro277
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OldPro277 10/23/2019 9:19am
10/23/2019 9:19am
Most teams I know run Ceramic bearings thru out the machine. We even built a couple that way for our privateer effort,several years back. TREMENDOUS difference in reducing drag and friction , however VERY pricey and for 99% of us would not be worth it.
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mxtech1
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mxtech1 10/26/2019 7:04am
10/26/2019 7:04am
We used to run ceramic wheel bearings and would cut the garter spring off the seals.
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Bogett287
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Bogett287 10/28/2019 4:03pm
10/28/2019 4:03pm
Not really sure the ceramic bearings will be a great help. They would be but very expensive and what would be the life of the bearing? And would it really make a difference
Moto520
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Moto520 10/29/2019 6:04pm
10/29/2019 6:04pm
I think it’s generally a situation with the brakes dragging a little. Push your pads apart then report back to us
1
Blackjack31
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Blackjack31 10/30/2019 7:41am
10/30/2019 7:41am
Every bike I have owned spins like that. I take off the tire and grease the axle before and after every race (woods) and I take a bronze wire wheel to it. Also, you could have your clip in the rear brake cylinder installed wrong. Causing it to drag the back brakes a little.
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