Selling 06 KX 250 and 06 CR 250 that I redone

Raiderdoug09
Profile picture for user Raiderdoug09
Posts
10
Joined
1/19/2012
Location
Idaho Falls, ID, USA
Raiderdoug09
Edited Date/Time 3/16/2012 4:34pm
Selling a couple of the bikes I've redone to wire my shop. Everything has been gone through and never been ridden since the over hauls.


Kx link

http://www.ksl.com/index.php?nid=218&ad=19547053&cat=236

CR link

http://www.ksl.com/index.php?nid=218&ad=19546919&cat=236
|
reded
Profile picture for user reded
Posts
3682
Joined
3/26/2011
Location
USA
reded 3/15/2012 5:27pm
3/15/2012 5:27pm
Beautiful bikes bro...
flyinb501
Profile picture for user flyinb501
Posts
675
Joined
7/25/2011
Location
Lakewood Ranch, FL, USA
flyinb501 3/16/2012 7:38am
3/16/2012 7:38am
My God those bikes are sexy! Nice work!
burn1986
Profile picture for user burn1986
Posts
12246
Joined
4/16/2010
Location
bossier city, LA, USA
burn1986 3/16/2012 8:25am
3/16/2012 8:25am
Why does the front fender on the KX stick up so much in the front?
Lightning78
Profile picture for user Lightning78
Posts
6353
Joined
12/12/2007
Location
Huntington Beach, CA, USA
Lightning78 3/16/2012 9:05am
3/16/2012 9:05am
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames, per the rg3, rich taylor, and Ross maeda podcasts, does the heat treatment from the powder coating application process have ANY effect on the frame's characteristics at all or alter them.... Good or bad?

Just curious since I've been hearing some of these timers and engineers comment on even the slightest change completely changing the way the frame acts or reacts

The Shop

See All »
mxtech1
Profile picture for user mxtech1
Posts
1968
Joined
7/21/2011
Location
Galesburg, IL, USA
mxtech1 3/16/2012 9:41am
3/16/2012 9:41am
Lightning78 wrote:
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames...
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames, per the rg3, rich taylor, and Ross maeda podcasts, does the heat treatment from the powder coating application process have ANY effect on the frame's characteristics at all or alter them.... Good or bad?

Just curious since I've been hearing some of these timers and engineers comment on even the slightest change completely changing the way the frame acts or reacts
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid.

Most powdercoat ovens bake around 350 - 450 F for no more than 45 minutes and then they are allowed to gradually cool. This duration of heat exposure probably wouldn't even completely heat the AL frame all the way through. The frame probably wouldn't be any hotter than 300 F.

I took a metallurgy class in college and I definately know it takes more heat than that to start changing AL properties.

It's kind of an old wive's tale. Yes, one could easily change the metallurgy of the frame with heat, but the heat from the powdercoating isn't it. One would probably need 600-1000 F for several hours followed by a multi-hour cool down period to soften the AL. Or a rapid quench from this temp range would make the AL very hard, but brittle. I believe 99% of guys who tell you baking a frame for powdercoat do not have much background in metallurgy
yz763
Profile picture for user yz763
Posts
792
Joined
2/6/2009
Location
Altamonte Springs, FL, USA
yz763 3/16/2012 9:51am
3/16/2012 9:51am Edited Date/Time 3/16/2012 9:55am
mxtech1 wrote:
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid. Most powdercoat ovens...
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid.

Most powdercoat ovens bake around 350 - 450 F for no more than 45 minutes and then they are allowed to gradually cool. This duration of heat exposure probably wouldn't even completely heat the AL frame all the way through. The frame probably wouldn't be any hotter than 300 F.

I took a metallurgy class in college and I definately know it takes more heat than that to start changing AL properties.

It's kind of an old wive's tale. Yes, one could easily change the metallurgy of the frame with heat, but the heat from the powdercoating isn't it. One would probably need 600-1000 F for several hours followed by a multi-hour cool down period to soften the AL. Or a rapid quench from this temp range would make the AL very hard, but brittle. I believe 99% of guys who tell you baking a frame for powdercoat do not have much background in metallurgy
I've seen several aluminum wheels on cars crack all the way across the spoke after powder coating. I don't think it's an old wives tale and has some truth to it.


Lightning78
Profile picture for user Lightning78
Posts
6353
Joined
12/12/2007
Location
Huntington Beach, CA, USA
Lightning78 3/16/2012 10:14am
3/16/2012 10:14am
mxtech1 wrote:
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid. Most powdercoat ovens...
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid.

Most powdercoat ovens bake around 350 - 450 F for no more than 45 minutes and then they are allowed to gradually cool. This duration of heat exposure probably wouldn't even completely heat the AL frame all the way through. The frame probably wouldn't be any hotter than 300 F.

I took a metallurgy class in college and I definately know it takes more heat than that to start changing AL properties.

It's kind of an old wive's tale. Yes, one could easily change the metallurgy of the frame with heat, but the heat from the powdercoating isn't it. One would probably need 600-1000 F for several hours followed by a multi-hour cool down period to soften the AL. Or a rapid quench from this temp range would make the AL very hard, but brittle. I believe 99% of guys who tell you baking a frame for powdercoat do not have much background in metallurgy
Nobody ever said anything to me .... I just know that heat can affect metals and wondered if the heat from PC would make a difference. When teams were polishing frames and altering the way the frames work the ama put a stop to it and drilling a hole as small as 1/8" changes the frame I thought any amount of even marginal heat like 300* or more would change the way the frame flexed or rebounds from a flex....the rate of speed the frame reacts is what I was inquiring about.
TeamPropainTurbo38t 3/16/2012 4:13pm
3/16/2012 4:13pm
Lightning78 wrote:
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames...
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames, per the rg3, rich taylor, and Ross maeda podcasts, does the heat treatment from the powder coating application process have ANY effect on the frame's characteristics at all or alter them.... Good or bad?

Just curious since I've been hearing some of these timers and engineers comment on even the slightest change completely changing the way the frame acts or reacts
mxtech1 wrote:
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid. Most powdercoat ovens...
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid.

Most powdercoat ovens bake around 350 - 450 F for no more than 45 minutes and then they are allowed to gradually cool. This duration of heat exposure probably wouldn't even completely heat the AL frame all the way through. The frame probably wouldn't be any hotter than 300 F.

I took a metallurgy class in college and I definately know it takes more heat than that to start changing AL properties.

It's kind of an old wive's tale. Yes, one could easily change the metallurgy of the frame with heat, but the heat from the powdercoating isn't it. One would probably need 600-1000 F for several hours followed by a multi-hour cool down period to soften the AL. Or a rapid quench from this temp range would make the AL very hard, but brittle. I believe 99% of guys who tell you baking a frame for powdercoat do not have much background in metallurgy
So you would know that 6061 alum. can be heat treated at 330 for 4 hours right? When you do it for different amounts of times you anneal the aluminum. I had my powdercoated CR250 swingarm break in half this summer.
TeamPropainTurbo38t 3/16/2012 4:15pm
3/16/2012 4:15pm
Lightning78 wrote:
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames...
I have a question about powder coating aluminum frames that's been on my mind for quite some time..... Due to the extreme sensitivity of aluminum frames, per the rg3, rich taylor, and Ross maeda podcasts, does the heat treatment from the powder coating application process have ANY effect on the frame's characteristics at all or alter them.... Good or bad?

Just curious since I've been hearing some of these timers and engineers comment on even the slightest change completely changing the way the frame acts or reacts
mxtech1 wrote:
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid. Most powdercoat ovens...
Baking powdercoat is not enough heat to alter the metallurgy. The heat is merely hot enough to turn the powder to a liquid.

Most powdercoat ovens bake around 350 - 450 F for no more than 45 minutes and then they are allowed to gradually cool. This duration of heat exposure probably wouldn't even completely heat the AL frame all the way through. The frame probably wouldn't be any hotter than 300 F.

I took a metallurgy class in college and I definately know it takes more heat than that to start changing AL properties.

It's kind of an old wive's tale. Yes, one could easily change the metallurgy of the frame with heat, but the heat from the powdercoating isn't it. One would probably need 600-1000 F for several hours followed by a multi-hour cool down period to soften the AL. Or a rapid quench from this temp range would make the AL very hard, but brittle. I believe 99% of guys who tell you baking a frame for powdercoat do not have much background in metallurgy
I think you should take a real metallurgy class because your temps for alum. are way off......also, seen a few mx wheels pretzel shaped within 1 ride dayafter powder coating...
burnside
Profile picture for user burnside
Posts
4096
Joined
6/17/2009
Location
London, USA
burnside 3/16/2012 4:34pm
3/16/2012 4:34pm
That CR is a treat!

Post a reply to: Selling 06 KX 250 and 06 CR 250 that I redone