CRF450L: Pssst, hey, over here, have you heard about Honda’s street legal Motocrosser?

Underground 12/27/2018 6:54pm
12/27/2018 6:54pm
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is lower. Shaving the cylinder base is the cheapest trick to bring some of that back up and can be reversed by using a custom gasket made of thicker material or simply using 2 stockers depending on how much you shave off.
TeamGreen
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TeamGreen 12/27/2018 7:00pm
12/27/2018 7:00pm
Underground wrote:
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is...
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is lower. Shaving the cylinder base is the cheapest trick to bring some of that back up and can be reversed by using a custom gasket made of thicker material or simply using 2 stockers depending on how much you shave off.
Check the parts fiche...it's probably just a lower compression piston versus the X...?
GPrider
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GPrider 12/27/2018 7:13pm
12/27/2018 7:13pm
Underground wrote:
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is...
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is lower. Shaving the cylinder base is the cheapest trick to bring some of that back up and can be reversed by using a custom gasket made of thicker material or simply using 2 stockers depending on how much you shave off.
I remember someone made thinner head gasket for the crf450 to raise compression, I used one on mine.
j100
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j100 12/27/2018 8:38pm
12/27/2018 8:38pm
the pic that was posted with the FMF was one of our bikes.

it’s running a little lean, but it’s on the stock L ECU.

we also eliminate the rear end and it saved 10 lbs.

The Shop

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j100
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j100 12/27/2018 8:39pm
12/27/2018 8:39pm
Underground wrote:
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is...
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is lower. Shaving the cylinder base is the cheapest trick to bring some of that back up and can be reversed by using a custom gasket made of thicker material or simply using 2 stockers depending on how much you shave off.
TeamGreen wrote:
Check the parts fiche...it's probably just a lower compression piston versus the X...?






1
Underground 12/27/2018 10:20pm
12/27/2018 10:20pm Edited Date/Time 12/27/2018 10:39pm
Underground wrote:
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is...
I haven't looked through part numbers but I would expect a more durable piston is fitted with possibly 2 compression rings and the compression ratio is lower. Shaving the cylinder base is the cheapest trick to bring some of that back up and can be reversed by using a custom gasket made of thicker material or simply using 2 stockers depending on how much you shave off.
TeamGreen wrote:
Check the parts fiche...it's probably just a lower compression piston versus the X...?
Yeah didn't want to go into that but anyway;

2019 R, RX, WE same cylinder, piston, head and base gasket
but cylinder head different on WE as known/expected.

CYLINDER HEAD ASSY.
12010-MKE-A70
Your Price: $379.18

GASKET, CYLINDER HEAD
12251-MKE-A71
Your Price: $23.29

CYLINDER
12100-MKE-A00
Your Price: $232.06

GASKET, CYLINDER
12191-MKE-A71
Your Price: $7.29

PISTON
13101-MKE-A70
Your Price: $98.33

CRANKSHAFT
13000-MKE-A70
Your Price: $266.33

2019 WE model only;
CYLINDER HEAD ASSY.
12010-MKE-A90
Your Price: $428.61


2019 450X and L different cylinder head, cylinder and piston to others but same gaskets;
CYLINDER HEAD ASSY.
12010-MKE-A50
Your Price: $386.18

GASKET, CYLINDER HEAD
12251-MKE-A71
Your Price: $23.29

CYLINDER
12100-MKE-A50
Your Price: $250.60

GASKET, CYLINDER
12191-MKE-A71
Your Price: $7.29

PISTON
13101-MKE-A50
Your Price: $100.16

CRANKSHAFT
13000-MKE-A50
Your Price: $283.55


2018 450R is all different but I don't know if any of this supersedes to new numbers;

CYLINDER HEAD ASSY
12010-MKE-A00
Your Price: $378.37

GASKET, CYLINDER HEAD
12251-MKE-A01
Your Price: $23.24

CYLINDER
12100-MKE-A00
Your Price: $232.06

GASKET, CYLINDER
12191-MKE-A01
Your Price: $7.25

PISTON
13101-MKE-A00
Your Price: $98.13

CRANKSHAFT
13000-MKE-A00
Your Price: $265.76



Now I just want the last hour back Dizzy

Just noticed crankcase halves are different R and RX to X and L.
Even cylinder head cover!
Inlet and exhaust valves are the same but cam and valve springs different plus a few other little things
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steed 2.0
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steed 2.0 12/28/2018 2:06am
12/28/2018 2:06am
JBecker 72 wrote:
I know some have been critical of the 38 hp number, but on the exact same dyno a 18 CRF250R made 36 and a 19 CRF450R...
I know some have been critical of the 38 hp number, but on the exact same dyno a 18 CRF250R made 36 and a 19 CRF450R made 53. So that’s actually pretty dang good considering it’s an emissions compliant bike.

I want one. A Rally version would be awesome.
Red Moto Italy already found. 5hp, more to come... Don't know when / if you messing around yourself if it has consequences for the warranty / 30.000 km service.? you need something from an insurance policy like with Car Chip tuning who take over the warranty or something...
HenryA
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HenryA 12/28/2018 2:12am
12/28/2018 2:12am
Timo_2824 wrote:
Thermostats are not junk, I just added one to my 19 FX. Best mod I've ever done to a bike, makes a difference when the temperature...
Thermostats are not junk, I just added one to my 19 FX. Best mod I've ever done to a bike, makes a difference when the temperature drops below 50°F.
Agreed. My old CRF used to dump a lot of fuel into the motor oil when it was below freezing outside. Installed a thermostat and it solved the problem.
Rooster
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Rooster 12/28/2018 1:49pm
12/28/2018 1:49pm
Johnny Depp wrote:
Too bad Honda or KTM or someone hasn't put anything like this on showrooms for under $15k: [img]https://p.vitalmx.com/photos/forums/2018/10/26/298521/s1200_ktm2.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/10/26/298520/s1200_Honda_CRF450_Rally_002.jpg[/img]
Too bad Honda or KTM or someone hasn't put anything like this on showrooms for under $15k:







How about this one. It's not current, but it still cool!


https://bringatrailer.com/listing/1989-honda-xrv650-africa-twin-rd03-2/
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GPrider
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GPrider 1/14/2019 5:29pm
1/14/2019 5:29pm
anybody have any updates on exhaust? ECU? anything?
jingram4
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jingram4 2/4/2019 10:28pm
2/4/2019 10:28pm
Johnny Depp wrote:
Too bad Honda or KTM or someone hasn't put anything like this on showrooms for under $15k: [img]https://p.vitalmx.com/photos/forums/2018/10/26/298521/s1200_ktm2.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/10/26/298520/s1200_Honda_CRF450_Rally_002.jpg[/img]
Too bad Honda or KTM or someone hasn't put anything like this on showrooms for under $15k:







Rooster wrote:
How about this one. It's not current, but it still cool! [img]https://cdn.bringatrailer.com/wp-content/uploads/2018/12/1989_honda_xrv650_africa_twin_rd03_154446260198764dahonda-xrv650-100345-02-940x627.jpg[/img] https://bringatrailer.com/listing/1989-honda-xrv650-africa-twin-rd03-2/
How about this one. It's not current, but it still cool!


https://bringatrailer.com/listing/1989-honda-xrv650-africa-twin-rd03-2/
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vdrsnk04
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vdrsnk04 3/8/2019 1:01pm
3/8/2019 1:01pm Edited Date/Time 3/8/2019 1:02pm
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real dual sport bike you can call a street legal motocrosser.
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Dirty Points 3/8/2019 1:56pm
3/8/2019 1:56pm Edited Date/Time 3/8/2019 3:03pm
vdrsnk04 wrote:
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real...
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real dual sport bike you can call a street legal motocrosser.
In street trim, the HUsky is just as plugged up as the Honda. Around 40 hp. The off-road versions are supposed to be monsters though.
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vdrsnk04
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vdrsnk04 3/11/2019 9:49am
3/11/2019 9:49am Edited Date/Time 3/11/2019 9:50am
vdrsnk04 wrote:
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real...
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real dual sport bike you can call a street legal motocrosser.
Dirty Points wrote:
In street trim, the HUsky is just as plugged up as the Honda. Around 40 hp. The off-road versions are supposed to be monsters though.
Here is stock for stock.

crf450l- weight-289lbs, HP-42(stock), TQ-24, fuel tank-2.01
FE501- weight-261lbs, HP-63(stock), TQ-33, fuel tank-2.6

weighs less while holding even more fuel...
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MelonFan123
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MelonFan123 3/11/2019 11:07am
3/11/2019 11:07am
I rode a 450L this weekend that was set up real nice - excess fender crap all cut off (saves weight), Yosh pipe (w/ stock ECU), proper dirt tires, suspension work. Here's a pic of the ol' girl. Thing rode amazing!

IMO, after they were first announced the 450L's got a bad rap regarding the weight and HP claims. I rode the bike in some tight 1st and 2nd gear single track with some nasty rocks. The extra weight actually helps charge through the rocks compared to my lighter '18 500exc, which sometimes deflects a bit in rocky stuff. BUT, when I did hit a big rock on the Honda and got kicked, the extra weight was noticeable. I did find I could steer my KTM better with my feet/legs while standing compared to the Honda. Definitely some trade offs between orange and red. Both great bikes.

Power was smooth and more than enough. It ran fine with the Yosh pipe, besides a little popping on decel.

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Dirty Points 3/11/2019 12:02pm
3/11/2019 12:02pm Edited Date/Time 3/11/2019 12:23pm
vdrsnk04 wrote:
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real...
lol street legal motocrosser. These things are overweight, underpowered turds. Look at a Husky FE501. 60+ hp at only 270lbs full of fuel. That's a real dual sport bike you can call a street legal motocrosser.
Dirty Points wrote:
In street trim, the HUsky is just as plugged up as the Honda. Around 40 hp. The off-road versions are supposed to be monsters though.
vdrsnk04 wrote:
Here is stock for stock.

crf450l- weight-289lbs, HP-42(stock), TQ-24, fuel tank-2.01
FE501- weight-261lbs, HP-63(stock), TQ-33, fuel tank-2.6

weighs less while holding even more fuel...
Nope. About 40 hp stock street trim.





http://https://www.dirtrider.com/2019-ktm-350-exc-f-vs-2019-ktm-500-exc…
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Pit Row

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vdrsnk04
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vdrsnk04 3/11/2019 12:09pm
3/11/2019 12:09pm
MelonFan123 wrote:
I rode a 450L this weekend that was set up real nice - excess fender crap all cut off (saves weight), Yosh pipe (w/ stock ECU)...
I rode a 450L this weekend that was set up real nice - excess fender crap all cut off (saves weight), Yosh pipe (w/ stock ECU), proper dirt tires, suspension work. Here's a pic of the ol' girl. Thing rode amazing!

IMO, after they were first announced the 450L's got a bad rap regarding the weight and HP claims. I rode the bike in some tight 1st and 2nd gear single track with some nasty rocks. The extra weight actually helps charge through the rocks compared to my lighter '18 500exc, which sometimes deflects a bit in rocky stuff. BUT, when I did hit a big rock on the Honda and got kicked, the extra weight was noticeable. I did find I could steer my KTM better with my feet/legs while standing compared to the Honda. Definitely some trade offs between orange and red. Both great bikes.

Power was smooth and more than enough. It ran fine with the Yosh pipe, besides a little popping on decel.

Great looking bike! That's about what i figured the review would be. I'd like to ride one setup like that back to back with my 501.
gt80rider
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gt80rider 3/11/2019 12:15pm
3/11/2019 12:15pm
Most dyno passes I have seen are around 38 hp, not 40 or more. They did a great job of plugging the shit out of that bike, then locked the brain to make it a huge PITA to upgrade.

I got a chance to get in more seat time with my buddy's 450L and was shocked by the lack of power. A DRZ400 feels about the same for yank (stock vs stock), and doesn't have the ridiculous 600 mile maintenance schedule.

Honda did a great job of dumbing the bike down for a Joe-Blow-Mainstream type of rider, but for the real enthusiast it just doesn't have much power. I know that is mostly due to gov regs, but still, damn....
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Johnny Depp
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Johnny Depp 3/13/2019 8:57am
3/13/2019 8:57am
Here's another test FYI.

https://www.cyclenews.com/2018/11/article/2019-dual-sport-shootout/

Stock vs. Stock isn't really the way they test these, the tires on all but the Beta are worthless for real dirt riding, and all but the Beta are plugged up power wise out of the showroom. Order the Beta BYOB with the correct springs and it is no contest.

Post a reply to: CRF450L: Pssst, hey, over here, have you heard about Honda’s street legal Motocrosser?