by JimDirt » Wed Sep 10, 2014 9:32 am
There are lots of places you could send it , Ken right here could do it for that matter and his prices are decent as well as his work
The issue your going to have mostly trail riding is that the 450R suspension will be stiffer no matter what you do compared to the 450X or 250X , because the tubes themselves are more rigid , you can get it to be really decent , but it will never be like a X just because of the construction of the forks themselves
Honda put too much preload in the KYB Mid Speed Stack ,which took away the progressive characteristics of the valving , so unless your a Pro rider its going to be stiff with stock valving
You can add some sag to the rear , this will take some of the pressure off the front and give a slightly softer ride , this along with a re-valve , front AND rear , should get it tolerable for you , its won't be a Cadillac but it will be much better , you also should do Compression AND Rebound valving , not just the Compression stack like most people do or have done
You could also try a softer fork spring ,this will allow the bike to use more of the stroke , because of the stock stiff valving the forks ride higher in the stroke all the time and this is what contributes to the harshness , a softer pressure spring will help as well and is what i did to my 02 450R to make it more trail friendly (i re-valve my own bikes) , i think the 2010 comes with a 2.1 Pressure Spring , i went with a 1.76 , which takes away a lot of the harshness and initial hits
Anyway , talk to Ken and see what he thinks he can do for you , either way no matter whom you choose , you need to converse with them first to make sure they can get you what your looking to achieve (as best as possible with what MX suspension allows)
Another thing to consider is shipping , if the suspension is not right after its done , you will have to ship it back and forth till it is (at your cost usually) so make sure where your sending it can get it to YOUR needs as best as possible , hopefully the first time
2020 CRF450R
2006 CRF450X

Weiser , Idaho