AF swap, what springs
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- Posts: 110
- Joined: January 8th, 2010, 11:35 pm
- Location: Berry Creek, Ca.
AF swap, what springs
Ok, did the af swap and love it.. How much have people been increasing the front springs to compensate for the heavier motor? Just one size up? Want to keep the cr250 bike balanced feeling.. Right now it does feel a little nose heavy
It all depends on the spring rate in the forks at the moment and your weight plus the little extra added from the 500 engine.
It could be possible the springs in there now have to much rate to start with or could be way under rated and then again they could be spot on now.
First weigh yourself then add about 5.5-6 lbs gen3 CR250 ( 21 lbs gen3 CR125 ) for the engine and check with a suspension place to see what rate spring they recommend.
Gen 1 CR125 / 250, Gen 2 CR125 / 250, Gen 3 CRF450 and Gen 4 CRF250 / 450 and the type of conversion will all have a different weight value to consider.
Then check to see what rate spring you have in your forks now and adjust from there.
It could be possible the springs in there now have to much rate to start with or could be way under rated and then again they could be spot on now.
First weigh yourself then add about 5.5-6 lbs gen3 CR250 ( 21 lbs gen3 CR125 ) for the engine and check with a suspension place to see what rate spring they recommend.
Gen 1 CR125 / 250, Gen 2 CR125 / 250, Gen 3 CRF450 and Gen 4 CRF250 / 450 and the type of conversion will all have a different weight value to consider.
Then check to see what rate spring you have in your forks now and adjust from there.
Last edited by CR500R7 on March 13th, 2010, 7:33 pm, edited 1 time in total.
Jack Schitt
DIE FIRST, worry about it later!
DON'T talk about it, Just DO IT!
When in doubt, GO FLAT OUT!
2001 CR500R1 - SOLD
2007 CR250R7 - SOLD
Wife and Daughter - Left Aug 17 - 2010
Jack Schitt - ??????????????
DIE FIRST, worry about it later!
DON'T talk about it, Just DO IT!
When in doubt, GO FLAT OUT!
2001 CR500R1 - SOLD
2007 CR250R7 - SOLD
Wife and Daughter - Left Aug 17 - 2010
Jack Schitt - ??????????????
-
- Posts: 110
- Joined: January 8th, 2010, 11:35 pm
- Location: Berry Creek, Ca.
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- Posts: 110
- Joined: January 8th, 2010, 11:35 pm
- Location: Berry Creek, Ca.
- redrocket190
- Posts: 1229
- Joined: September 17th, 2007, 9:07 pm
- Location: San Clemente, CA