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Old 11-18-2014, 06:34 PM   #1
Xtremjeepn OP
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Question KTM, 2005 450 EXC vs. 2003 525 MXC

Long story short.

- Looking for a "trial bike" I can tote around on a hitch carrier for mostly light trail use in the Rockies and the occasional "ride into town" while camping. " (so mild highway speed use 55-65mph for 10-20 miles)

-Have been offered a 2005 450 EXC and a 2003 525 MXC in trade for one of my other bikes.

I've read a ton of posts on the differences. I know the EXC will have a wide ratio gear box for a lower first and taller 6th. Would the extra grunt of the 525 offset the lower first a for going slow?

Which would you pick and why? Is there anything else I'm missing between the two bikes?
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Old 11-18-2014, 07:14 PM   #2
tkent02
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Quote:
Originally Posted by Xtremjeepn View Post
Long story short.

- Looking for a "trial bike" I can tote around on a hitch carrier for mostly light trail use in the Rockies and the occasional "ride into town" while camping. " (so mild highway speed use 55-65mph for 10-20 miles)

-Have been offered a 2005 450 EXC and a 2003 525 MXC in trade for one of my other bikes.

I've read a ton of posts on the differences. I know the EXC will have a wide ratio gear box for a lower first and taller 6th. Would the extra grunt of the 525 offset the lower first a for going slow?

Which would you pick and why? Is there anything else I'm missing between the two bikes?
Whichever one you choose, hook me up with the other one. I'm not so picky. But I'd prefer the 450 EXC.
Seriously, ride them both and decide for yourself, I'll take the other one.
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Old 11-18-2014, 07:14 PM   #3
bearcat1
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Quote:
Originally Posted by Xtremjeepn View Post
Long story short.

- Looking for a "trial bike" I can tote around on a hitch carrier for mostly light trail use in the Rockies and the occasional "ride into town" while camping. " (so mild highway speed use 55-65mph for 10-20 miles)

-Have been offered a 2005 450 EXC and a 2003 525 MXC in trade for one of my other bikes.

I've read a ton of posts on the differences. I know the EXC will have a wide ratio gear box for a lower first and taller 6th. Would the extra grunt of the 525 offset the lower first a for going slow?

Which would you pick and why? Is there anything else I'm missing between the two bikes?
The 525 is actually 510cc so there is about a 61cc difference from the 450 (449cc). I believe the mxc model has a close ratio tranny?? In a highly scientific experiment my friend who weighs 225lbs on his 05 525 exc (not mxc) and me with at 170 lbs on my 05 450 exc would run neck and neck in a drag race. Those bikes had the nads to pull 6th gear with the stock gearing!

Sorry I can't comment on the 525 mxc. All I know is when riding the 525 exc it had just a little more everywhere compared to the 450 exc... but not that much!

bearcat1 screwed with this post 11-18-2014 at 07:23 PM Reason: mxc tranny ratio??
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Old 11-18-2014, 07:15 PM   #4
Adanac rider
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Both nice bikes,I had 2001 exc 400 and it had plenty of power for allmost any condition. Does the MXC have a bigger tank? I currently have 525 exc and I like the gearing. You probably don't need all that power for camping and going to town for supplies .
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Old 11-18-2014, 07:32 PM   #5
Xtremjeepn OP
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Eek

Quote:
Originally Posted by Adanac rider View Post
You probably don't need all that power for camping and going to town for supplies .

.....riiiight
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Old 11-18-2014, 07:54 PM   #6
cjbiker
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The 2005 has a better frame and suspension. That would make the decision easy for me. The EXC transmission is a nice bonus, too. The 450 has more than enough power, but you can easily turn it into a 540 if you need the extra grunt.

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Old 11-18-2014, 07:59 PM   #7
Xtremjeepn OP
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Originally Posted by cjbiker View Post
The 2005 has a better frame and suspension. That would make the decision easy for me. The EXC transmission is a nice bonus, too. The 450 has more than enough power, but you can easily turn the it into a 540 if you need the extra grunt.
Thanks. That was the sort of helpful thing that hasn't showed up in my other searches. Exactly the type of stuff I was hoping to learn
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Old 11-18-2014, 09:13 PM   #8
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I'd pick the cleanest, best maintained one. Not much between the two.
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Old 11-19-2014, 08:47 AM   #9
ChasM
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Quote:
Originally Posted by cjbiker View Post
The 2005 has a better frame and suspension. That would make the decision easy for me. The EXC transmission is a nice bonus, too. The 450 has more than enough power, but you can easily turn it into a 540 if you need the extra grunt.
Exactly.

Forget the MXC as the close ratios are poorly suited for generalised or dual sport use. If the MXC was properly geared for the trails, it would be way too low geared for cruising due to the close ratio tranny.
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Old 11-19-2014, 08:58 AM   #10
cjbiker
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I wouldn't dismiss an MXC just because of the transmission. The 525 certainly has the torque to pull taller gearing making the close ratios less of an issue. The gears can be changed to EXC ratios if desired, as well.

The most important thing is that the 2005+ RFS bikes are "the good ones". They benefit from all the positive evolution of the chassis, suspension, and engine designs over the years. The fact that the 2005 is an EXC makes it a win-win.

If it was a 2005 MXC vs a 2003 EXC, it would be a tougher decision.
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Old 11-19-2014, 09:32 AM   #11
fullmonte
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I have the 525mxc and miss my 450exc dearly. This is mostly due to the transmission. You can gear it for trails or the street. Pick one. It is happiest blazing sideways up a fire road. I'm running 13-50 gearing and she starts screaming above 55 mph.
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Old 11-19-2014, 09:49 AM   #12
Xtremjeepn OP
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Thanks guys! Going to look at the 450exc this weekend.

Looks to be the nicer bike from the pictures anyway.
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Old 11-19-2014, 08:53 PM   #13
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I would get the 450EXC hands down for all the reasons already stated. I have an 04' 525EXC that has been a great bike, 425 hours and 10000 miles and never had the head off yet. You won't be disappointed. My brother has an 06' 450EXC, there's not a huge difference in power.
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Old 11-20-2014, 06:43 AM   #14
MotoChris521
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Quote:
Originally Posted by fullmonte View Post
I have the 525mxc and miss my 450exc dearly. This is mostly due to the transmission. You can gear it for trails or the street. Pick one. It is happiest blazing sideways up a fire road. I'm running 13-50 gearing and she starts screaming above 55 mph.
This .

I also made the mistake . Great desert bike , but on tight singletrack it was a handfull .

Tried lower gearing , but still didn't feel right.

Should have bought the EXC and plated it. I know I would still have it.
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Old 11-22-2014, 12:58 PM   #15
Xtremjeepn OP
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Question

I'd love some feedback on this bike if you guys don't mind giving it. I know that some of you guys with more experience with this bike will know more about what is executable condition and life span.

Guy brought this over today and its a bit rougher around the edges than I was expecting.

-Bike is actually an 04 not an 05 as the guy thought it was.
-No speedo hooked up. It'd broken off and in the parts bag. Unknown mileage/hours
-Brand new stator installed but not functional. So dead battery, no working lights.
-Rusty bits and obviously lived outside its whole life.
-New wheels, old tires.
-Needs chain
-Seems to actually start and run well. Comes with a small pile of parts.
-Obviously ridden hard and put away wet.


He left it with me tonight so that I can fiddle with it, check out parts prices, etc.

We would basically be getting this bike plus cash and some other bits for our rarely used Dakar 650.







???















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