mx suspesion thinking about a conversion

[metallic88]

so i test fitted a kyb rear shock and it fits better than factory, so my plan to fully convert my mx to kyb suspesion will happen in the future.

 

[Philip]

Cool. What bike is it from? You will need a lot stiffer spring on it though. Then revalve the shock to match the spring.

I was able to use KYB SSS forks from the 2015 YZ450F on my MX without even changing the springs. I just shimmed the lower triple clamps. I used the YZ450F front wheel and brake.

Last winter I rode a CRF450 with a Pro Circuit motor and a suspension done by the Roczen's factory suspension tuner. It was valved for an A rider for the WORCS off-road series, so it was very plush, but the bottoming resistance seemed to be good enough for supercross. I didn't like the motor, my Alta's motor is light years better, but that suspension was out of this world. All the jumps appeared to be half the size with this suspension. I am sucker for a good suspension.

 

[metallic88]

Cool. What bike is it from? You will need a lot stiffer spring on it though. Then revalve the shock to match the spring.

I was able to use KYB SSS forks from the 2015 YZ450F on my MX without even changing the springs. I just shimmed the lower triple clamps. I used the YZ450F front wheel and brake.

Last winter I rode a CRF450 with a Pro Circuit motor and a suspension done by the Roczen's factory suspension tuner. It was valved for an A rider for the WORCS off-road series, so it was very plush, but the bottoming resistance seemed to be good enough for supercross. I didn't like the motor, my Alta's motor is light years better, but that suspension was out of this world. All the jumps appeared to be half the size with this suspension. I am sucker for a good suspension.( So Am I lol)

that ones from my 2004 kx250 that im rebuilding(i had it just sitting there i had to try It). it doesnt fit the linkage so im looking for a newer one i think, and for the front I'm planing on using the 2010 crf450 triple clamps and forks. I know ill have to respring and revalve them all though ive been thinking about it for awhile im just sourcing parts to actually get it done lol. once i get it done ill probably have a whole write up on what i used.

 

[Scooter584]

Good info...I currently have yz's (144 and 250) and an MXR of course. I also have a KYB A-kit I snagged online a while ago so that leaves me with a brand new (taken off 2015) set of KYB suspension.....or do I put the A-kit on the Alta?

 

[metallic88]

so i test fitted the 2010 crf450 triple clamps and they fit real well but they could use some different bearings

 

[Philip]

Do you really like that fork that much? Hope you could figure out the bearings.

 

[metallic88]

Do you really like that fork that much? Hope you could figure out the bearings.

yeah theyre alot better than the 4cs imo. but the bearings werent hard to find i just had to order them. but i chose the crf450 triples so itd look the same since thats what fender and number plate alta uses