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Kdx220 fork spring size

Posted: 08:56 pm May 25 2020
by kdxdazz
Finally got my donor drz400e forks open to take a look at the spring, it measures 510mm long by 43mm in diameter, what are the size of kdx springs in comparison, I want to use my 0.32kg springs from the kdx in my drz forks. Also in the photo is a Yz125 spring which measures 460mm. Is it possible to use a 70mm spacer to make up for this distance.

Re: Kdx220 fork spring size

Posted: 11:06 pm May 25 2020
by KDXGarage
I think KDX springs are about 35.8 mm OD. ... OK, I went to Race Tech, and here is what their aftermarket spring are. I must have been remembering their number.

35.8x472

Re: Kdx220 fork spring size

Posted: 12:32 am May 26 2020
by kdxdazz
That's a huge difference, don't think it's wise to use the kdx spring given that conventionals don't use a spring guide and than that outer tube us the spring guide. Yz125 spring measures 41.3mm which is fairly close, how does my spacer idea sound

Re: Kdx220 fork spring size

Posted: 03:58 am May 26 2020
by KDXGarage
Why 70 mm spacer to make up 50 mm difference?

Are you wanting to put the YZ spring in the DR-Z forks? 50 mm sounds like too much of a difference.

Re: Kdx220 fork spring size

Posted: 05:00 pm May 26 2020
by kdxdazz
60mm of difference between the drz and YZ spring then 10mm preload