The Lawrence boys on the new CRF video.

Thisusernameisavailable
We're well used to hearing pro riders on their 250s, with raced tuned motors, open pipes, aggressive cam profiles and increased rev ceilings- we're used to it, we see/hear it all the time.

We are also used to hearing 'normal guys ride stock bikes..

But watching that video of the Hunter boys riding the stock bike, it makes an unusual noise. What is it? Its not your 'normal' rev limiter, it doesn't sound over-revved, are they simply riding it right at the edge, teetering on the limiter cutting in?? Or have Honda done something different with this motor?
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Richy
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Richy 8/4/2021 2:13pm
8/4/2021 2:13pm Edited Date/Time 8/4/2021 2:14pm
OEM ECU's usually use a soft-cut limiter, on race stuff there's often a hard-cut limit which is more aggressive and cuts ignition entirely or a lot more dramatically, hence the pops and bangs, set at a higher rpm and it can be essential and also cut in earlier on highly strung engines.
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Tumic
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Tumic 8/4/2021 2:22pm
8/4/2021 2:22pm
Thisusernameisavailable wrote:
We're well used to hearing pro riders on their 250s, with raced tuned motors, open pipes, aggressive cam profiles and increased rev ceilings- we're used to...
We're well used to hearing pro riders on their 250s, with raced tuned motors, open pipes, aggressive cam profiles and increased rev ceilings- we're used to it, we see/hear it all the time.

We are also used to hearing 'normal guys ride stock bikes..

But watching that video of the Hunter boys riding the stock bike, it makes an unusual noise. What is it? Its not your 'normal' rev limiter, it doesn't sound over-revved, are they simply riding it right at the edge, teetering on the limiter cutting in?? Or have Honda done something different with this motor?
Sounds like a snoaring noice. The old first gen crf250x sounded the same close to the rev limiter.

Cant say that it sounds pretty..
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PNWRider
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PNWRider 8/4/2021 2:28pm
8/4/2021 2:28pm
My buddy’s KTM back in ‘12 or so sounded like that as well. Always thought it sounded like a VW Beetle wound tight, lol.
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tek14
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tek14 8/4/2021 2:29pm
8/4/2021 2:29pm
That sound makes ears bleed... after market pipe could help.
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1911
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1911 8/4/2021 2:38pm
8/4/2021 2:38pm
tek14 wrote:
That sound makes ears bleed... after market pipe could help.
A 2 stroke would definitely help with the sound.
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Falcon
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Falcon 8/4/2021 2:43pm
8/4/2021 2:43pm
tek14 wrote:
That sound makes ears bleed... after market pipe could help.
1911 wrote:
A 2 stroke would definitely help with the sound.
...And the handling. Cool
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wideopen198 8/4/2021 2:54pm
8/4/2021 2:54pm
It sounds a lot like the Yamaha. I personally love that raspy tone
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Steve125
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Steve125 8/4/2021 3:07pm
8/4/2021 3:07pm
I agree on it sounding like a Yamaha. I may be wrong but I thought it was caused by a dual fire ignition?? A second firing of the spark plug a bit later in the cycle?
reded301
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reded301 8/4/2021 3:07pm
8/4/2021 3:07pm
"muddy"
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Elbows
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Elbows 8/4/2021 3:15pm
8/4/2021 3:15pm
Reminds me of when my old air compressor kicks on in the shop.
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Press516
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Press516 8/4/2021 4:32pm
8/4/2021 4:32pm
Same sound you get out of the Troll's Yamaha... Not quite as crisp as his but still sounds like wet fart noises. Not my favorite.
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VetRider97
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VetRider97 8/4/2021 6:41pm
8/4/2021 6:41pm
wideopen198 wrote:
It sounds a lot like the Yamaha. I personally love that raspy tone
Thought same thing...sounds like yammi intake noise
mattyhamz2 8/4/2021 7:28pm
8/4/2021 7:28pm
Sounds like a mini 450 to me. The bike sounds really good and that’s coming from that is nowhere near being a fan of Honda.
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face biter
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face biter 8/4/2021 7:40pm
8/4/2021 7:40pm
This bike and the Yamahas sound like an air cooled VW with a stinger.
28hall
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28hall 8/4/2021 8:04pm
8/4/2021 8:04pm
Definitely sounding Yamaha-esque... their factory 250s sound way throatier this year in the nationals compared to last year too so Honda have obviously come up with something

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Lloydcarter
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Lloydcarter 8/4/2021 8:04pm
8/4/2021 8:04pm
What you might be hearing is the camera mic clipping
Day30
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Day30 8/4/2021 8:28pm
8/4/2021 8:28pm
Db limiter on the camera mic it sounds like. It’s pretty easy to start clipping decibels if it’s on auto and only recording through the camera and not a dedicated sound recorder. Who knows what the camera set up is, but that is a highly likely scenario.
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hubbardmx50
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hubbardmx50 8/4/2021 8:42pm
8/4/2021 8:42pm
That track looks really weird. It’s almost all wood chips, I wonder why Honda had the intro there. But I was thinking the same thing, doesn’t sound like they have to rev the piss out of that bike to get it to go. It sounds really good actually. Wish I was 40 pounds lighter, I’d have a deposit down on one for sure
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gerg
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gerg 8/4/2021 8:44pm
8/4/2021 8:44pm
When can HRC start racing the factory version of that bike?
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Zycki11
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Zycki11 8/4/2021 8:54pm
8/4/2021 8:54pm
Man that track looks fun. Oh yeah bike looks good too
Ryan625
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Ryan625 8/4/2021 9:24pm
8/4/2021 9:24pm
Zycki11 wrote:
Man that track looks fun. Oh yeah bike looks good too
Mountain View is among my favorites, I wish it wasn't a 7 hour drive.
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Yz229
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Yz229 8/5/2021 12:13am
8/5/2021 12:13am
Grew up on that track! Back in the day they took dirt from our farm. They have done some other Honda releases there as well.
decano51
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decano51 8/5/2021 1:08am
8/5/2021 1:08am
sounds like a hill climb bike hahaha
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mx691
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mx691 8/5/2021 3:04am
8/5/2021 3:04am
Both Martin bros YZF and several other YZF´s have the same annoying sound, i hate it! Sounds as if its a twincylinder or a really rich running (or cold) 2-stroke. First time i have heard it on a Honda
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Richy
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Richy 8/5/2021 3:33am
8/5/2021 3:33am Edited Date/Time 8/5/2021 3:34am
Just watched it again, mic chopping the top off is a fair shout, either way those things sound gutsy, not the best noise but sound strong, and they look awesome. I'm still lovin both of these Lawrence lads too, gonna be interesting next year!
jemcee
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jemcee 8/5/2021 5:24am
8/5/2021 5:24am
Haha I've been hearing bikes make this noise for years! First it was the Kawasaki 250 then it was Yamaha and now it's apparently the Honda..
I've tried to ask my mate who's a mechanic and he never seemed to hear what I heard and I was thinking I might've been imagining it haha but I went to watch them riding one day and one of the bikes was doing it and... yeah he didn't have an answer for me haha
jemcee
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jemcee 8/5/2021 5:29am
8/5/2021 5:29am
reded301 wrote:
"muddy"
I say 'fluffy' haha

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