Attention 06/07 YZ450 owners with cornering troubles.


18 replies to this topic
  • djtroy

Posted May 05, 2008 - 08:26 AM

#1

I just sent my suspension to one of the guys Davej (Smart Performance Inc) who posts on Thumpertalk in the suspension section. I am glad to say my bike actually turns now. Who would have thought suspension makes such a huge difference with cornering on the YZ450.

Amazing.

http://www.thumperta...ad.php?t=640573

  • KAS

Posted May 05, 2008 - 09:37 AM

#2

I had the suspension on my '07 sprung for my weight, and set the sag up right, and holy cow this thing rails corners AWESOME.

  • Ga426owner

Posted May 05, 2008 - 10:02 AM

#3

Daves special oil, his piston mods and the IC springs are what makes this work so well. I have been testing these for a few weeks and yes it really does work. The Bike turns much better even with my 24mm Clamps and extended rear axle. I rode my 06 back to back with a stock 08 yesterday and all I can say is yes my 06 corners better, finally! And the instant power does not hurt either....I can not believe how much I like my 06 again.:eek:

  • NOMADAK

Posted May 05, 2008 - 10:31 AM

#4

Would you gentlemen please give a link to his website....if he has one.

Very interested in this. Also what are the costs?

Ga426-what clamps are you using? What axle extender?

I have had an 06 YZ450F since 3/06 and have not felt it had big problems once I got it sprung correctly for my weight. I have been off the bike due to long winters and serious injuries the past 1.5 years.

  • grayracer513

Posted May 05, 2008 - 11:15 AM

#5

I just did my first test of 215.VM2.K5 this week; very impressive:

http://www.thumperta...054#post6341054

Dave's web site is at:

http://www.smartperformanceinc.com/

http://www.smartperf...m/215VM2K5.html

  • Ga426owner

Posted May 05, 2008 - 12:20 PM

#6

Would you gentlemen please give a link to his website....if he has one.

Very interested in this. Also what are the costs?

Ga426-what clamps are you using? What axle extender?

I have had an 06 YZ450F since 3/06 and have not felt it had big problems once I got it sprung correctly for my weight. I have been off the bike due to long winters and serious injuries the past 1.5 years.


http://www.smartperformanceinc.com/

I am using Applied Racing 24mm top and bottom clamps Rubber Mounted
Axle extended to furthest point on swingarm - similar to Grant Langstons set up

  • bustersat

Posted May 05, 2008 - 12:31 PM

#7

I have been having problems getting my 02 426 to turn. I called Dave after reading a bunch of his posts and sent him my suspension. He got it on Sat 3 and had a message to me with a parts break down and suggestions by Sun 4. This is the best service I have received ever! Also he did not try and talk me into a WORKS set up, but instead kept it reasonable. My forks had been butchered by the guy who owned the bike previously. Dave almost laughed when he told me " You must be hard cause that had to be one of the roughest rides out there!" It was too! 600 bucks for a lot of broken parts, rebuild, cleaning valving, re sprung, and shipping! I will have them in two days, today being the 5th. Less then a week for a full suspension set up! amazing!

  • Wiz636

Posted May 05, 2008 - 02:42 PM

#8

I just did my first test of 215.VM2.K5 this week; very impressive:

http://www.thumperta...054#post6341054

Dave's web site is at:

http://www.smartperformanceinc.com/

http://www.smartperf...m/215VM2K5.html


Gray, I also switched to 215.VM2.K5 a week ago and came away with pretty much the same conclusions as you. It was almost uncanny how similar our observations were: http://www.thumperta...042#post6342042

  • grayracer513

Posted May 05, 2008 - 02:45 PM

#9

Pretty amazing stuff, i'nit? :eek:

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Ga426owner

Posted May 06, 2008 - 10:07 AM

#10

GreyRacer and Wiz - I am curious what oil height levels you experimented with and results....please tell.

  • grayracer513

Posted May 06, 2008 - 11:25 AM

#11

As I mentioned at the end of my review, I used 11 ounces of SP5 in the outers. That comes out to 325cc. The inners are, of course, filled.

  • Wiz636

Posted May 06, 2008 - 12:14 PM

#12

GreyRacer and Wiz - I am curious what oil height levels you experimented with and results....please tell.


I have 12 oz (354cc) in the outer chambers at the moment which has resulted in me runnng my comp. clickers way out, i.e., 14 - 20 clicks. The interesting thing about this is that while I could feel that I needed to drop the amount of oil it was never harsh and was (is) actually rather plush. So far all my riding has been on tight singletrack woods trails.

I will remove 25 - 30 cc's before my next ride which unfortunately will not be this weekend. My GF & I are celebrating our birthdays in Las Vegas this weekend :eek:

  • grayracer513

Posted May 06, 2008 - 12:58 PM

#13

I have 12 oz (354cc) in the outer chambers at the moment which has resulted in me runnng my comp. clickers way out, i.e., 14 - 20 clicks. The interesting thing about this is that while I could feel that I needed to drop the amount of oil it was never harsh and was (is) actually rather plush. So far all my riding has been on tight singletrack woods trails.

I finished the day at 12C and 14R, but I'll probably be fooling with them some more.

My GF & I are celebrating our birthdays in Las Vegas this weekend :eek:

Mine's the 13th. Hoist one for me. :p

  • Wiz636

Posted May 06, 2008 - 02:43 PM

#14

Mine's the 13th. Hoist one for me. :eek:


Will do Gray...maybe even two :p

  • YZ125 DR650

Posted May 06, 2008 - 11:11 PM

#15

I finished the day at 12C and 14R, but I'll probably be fooling with them some more.

Mine's the 13th. Hoist one for me. :eek:


happy birthday guys mines the 8th.

  • djtroy

Posted May 07, 2008 - 09:52 AM

#16

Mine was the 5th. Mexicans celebrate my bday every year.

  • Wiz636

Posted May 07, 2008 - 01:02 PM

#17

Mine was the 5th. Mexicans celebrate my bday every year.


Nice....that's a good one. :eek:

  • x2468

Posted May 08, 2008 - 08:31 AM

#18

how much does the stuff cost? the oil alone. and the mod. I've read a bit about this oil and it sounds amazing. is it cheaper than regular re-valve work done by the big suspension companies? sounds like it performs better lol.

  • grayracer513

Posted May 08, 2008 - 09:35 AM

#19

At this point, I don't think the fluid is available for general sale, as it's still in development.

But to get the straight scoop, contact Dave at http://www.smartperformanceinc.com/





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