2011 rear spring ?

MX558
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MX558
Edited Date/Time 3/29/2012 4:50pm
I have an 2011 yz450 and weigh 200 (no gear) I see Race Tech goes from the stock 5.7 spring right to 6.0 in their spring selection. Is that going to be too stiff ? I can't seem to get the rear end set up right. I would like to have about 100-105 race sag. I'm running 48's (47stock)in the front. Thanks in advance.
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bradmx421 3/27/2012 10:52am
3/27/2012 10:52am
i typed your info into the race tech spring calculator and it recommends staying with the 5.7 in the rear and running .48 or .50 in the front.

or just get the cartridge kit from Ohlins/Langston Racing with a Ohlins TTX rear shock. makes a major improvement with the handling of the bike. aswell as linkage.
Riesenberg448 3/28/2012 4:15pm
3/28/2012 4:15pm
From one of the tech's at Race Tech:

Hello, after doing the spring calculation I am afraid that 6.0 will be too stiff for your weight. I would recommend staying with the 5.7 spring.



Do you have a Oversized tank or any add weight? We would recommend to run your sag at about 35 free and about 100-105 with you on it.
bobmx
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bobmx 3/28/2012 9:12pm
3/28/2012 9:12pm
MX558 wrote:
I have an 2011 yz450 and weigh 200 (no gear) I see Race Tech goes from the stock 5.7 spring right to 6.0 in their spring...
I have an 2011 yz450 and weigh 200 (no gear) I see Race Tech goes from the stock 5.7 spring right to 6.0 in their spring selection. Is that going to be too stiff ? I can't seem to get the rear end set up right. I would like to have about 100-105 race sag. I'm running 48's (47stock)in the front. Thanks in advance.
I would try calling Pc, MB1, or FC and ask them their recommendation. Rts spring calculations are never accurate and they got some sales guy trying to call spring rates..
MX558
Profile picture for user MX558
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MX558 3/29/2012 4:50pm
3/29/2012 4:50pm
Riesenberg448 wrote:
From one of the tech's at Race Tech: Hello, after doing the spring calculation I am afraid that 6.0 will be too stiff for your weight...
From one of the tech's at Race Tech:

Hello, after doing the spring calculation I am afraid that 6.0 will be too stiff for your weight. I would recommend staying with the 5.7 spring.



Do you have a Oversized tank or any add weight? We would recommend to run your sag at about 35 free and about 100-105 with you on it.
I put the 6.0 on and I have exactly the sag you recommended. I don't have any extra stuff on the bike. Thanks for your help guys.

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