Preload spacer for Showa TC

[NO HAND]

Hi,
I'm about to stumble on some preload spacers I have to find and install. After I manage to figure the size I need, I will have to decide if it's best to put the spacers on top or below the spring. It's a Showa TC on a 03' CR250. I remember on my old kayaba blader forks I read somewhere it was better to put the spacers on top. If I remember right it was because on the kayaba there was a oil passage right at the bottom of the spring and putting the preload spacer at that place would risk blocking it. It doesn't look the same on the showa, so I asume I can put the spacers anywhere, right?
Thanks
J-S

 

[bclapham]

No Hand- i ran (past tense) some spacer on my TC showa and i put them at the bottom- doesnt the innerchamber sit inside the spring, i could see things going awry there thats why i ran them at the bottom. i am sure we will get an expert opinion though!

 

[DEANSFASTWAY]

whenever i have to use them on TCs I put them at the bottom of thefork.

 

[NO HAND]

Thanks guys. Then, at the bottom they'll go!!

 

[bedell99]

Hey guys, off the subject but can i use some preload spacer's to make the fork sit higher. I swapped to some lower rate spring's (42's, I weigh 150 lbs) and the front seems to hang down a little in the travel. Also do you guys know the standard length of the stock spring so i can measure them??

Erik

 

[DEANSFASTWAY]

493mms long

 

[NO HAND]

Hey guys, off the subject but can i use some preload spacer's to make the fork sit higher...

I'm pretty sure it is the main goal of these preload spacers. There used to be a post about the fork sag and how it is as important as the rear sag but is harder to measure. If I remember well it was measured in milimeters. about one third of the travel.

 

[bedell99]

Ok I got a problem I just took aprt my forks, I measured my aftermarket springs (Eibach to be exact and they are approximetely 19 5/16~3/8" (491mm) They are ~2mm short of spec. Is that still within spec. Now you got me thinking should I use a preload spacer and if your do what is ypur recomendation.

Erik

 

[NO HAND]

Ok I got a problem I just took aprt my forks, I measured my aftermarket springs (Eibach to be exact and they are approximetely 19 5/16~3/8" (491mm) They are ~2mm short of spec. Is that still within spec. Now you got me thinking should I use a preload spacer and if your do what is ypur recomendation.

Erik

I'd vote for a 2mm spacer in each but If I'd be you I would wait and let the pros confirm. :cool:

 

[marcusgunby]

I would.

 

[bclapham]

LOL- my rm had something daft like 0.41 springs, i weigh 225 and for a stop gap i ran some 12mm spacers and the forks were great with not far off stock valving, everyone else liked them too.

got the proper springs in there now though.

 

[DEANSFASTWAY]

Bdell Try this iof theyre still apart : take each spring and smack it down sideways on a hard floor and see if it comes back , sometimes theyll come back to original length, but after you use it it will probably take its set again ,actually only being 2mms off of a @500mm target is not far off of an accepance ratio its only only like .4% Id put a little spacer in there just because you say youre riding too low .Sounds like youre forks would work pretty good with a lighter spring with a bit of preload esp if youre lighter rider like you at @ 150lbs . try like a !0mm spacer and then if too much you could cut it down . Its a bit harder with those T/Cs though . Good Luck