Hey there. I am looking at upgrading my suspensioin . Anyone have any ideas with comparisons between Progressive , Ikon,  YSS ?? I am on a bit of a budget but am open to ideas .

Thanks in advance.

Duane

hi. nothing wrong with stock fork springs set up proper . wound progresive springs are to soft on the fine section & maybe to corse on the main section . normal linear type are cool you can pack the preload up to a bit of extra tension if need be , depends how heavy rider/pilion is + useage, fast/touring.
air caps are cheap , machined into fork caps ( stainless steel mag wheel valve stems , 25 bucks pair , no more than 20 LB max each leg hand pump only, helps greatly .
+ 30 w bel-ray fork oil , can do this yourself for about 45 bucks . we use to use progresive springs in the 883 twinsport race bikes untill we found they wernt needed just a good linear spring set-up , progresive rear shocks are a bit on the harsh side there over sprung , konis were the best for the price but are no longer made , proven products now do ikon with the bits left over from koni & the rest is machined up in australia , but arn't as good as koni ,
a good s/hand set of koni's would would be cheaper & are rebuildable , be carefull with ikon? i think they are better now than they use to be i'am not sure .
a good s/hand set of koni's that hasn't been flogged is what to look for. cheers

Hi Duane.

I fitted the Heavy Duty 412 Progressives to my 883. They were great for 2-up. I fitted the std duty ones first, but they bottomed out with pillion. The dealer swapped them for me.

Gonzo

dr56, howdy, i threw this one to the forum a cupla weeks ago in da sporty section and was recommended a set of progressives for the front as well, however alot of replys came bak with heavier oil and spacers as well as valve stems fitted to the fork caps, which i thort was gud advice, i havnt got aroundtuit yet but before i get the progressives which iam now not sure i will, are you recommending i put a spacer of about 20mm in the top of the springs so to load those springs up a bit harder, (thats wot one of the comments were i think he meant) and then the thirty wate oil as a cheap start, i put some new progressive rears on da fatty in the states a cupla years ago because of jony on the spot cash wise, they are shit, i nearly rode bak to fish me old hd 1,s outa the bin i think i will get some fournales for xmas instead of socks an fuggin undies. anyway wot u reckon????...................... cheers from that fuggin rat NO FLAMERS

hi,  race tech do  a good  quality straight rate springs for the front forks , with 30 w oil .  these would be better than progresive brand ,  kit comes with preload washers + spacer material + instructions,  if you want to spend  sum $$ ,

when you order you give them your weight of rider  type of bike  etc  for the spring presure choice , or to save $$ you can play with your stock  springs, more preload  for heavy bikes or when using softer springs  stock  springs are on the soft side,  spring preload normal is about 15 to 35 m.m.

 if its still to soft after 35 m.m. preload  you need a harder rate spring  , depends on bike + rider sprung  weight 

preload is measuring is the distance between  the top of the fork tube to the sealing lip on the fork cap.

if you want more theres,   gold valve emulator by race tech  they are an adjustable damper valve  that replaces your damper rod  & works very well   they sit under your fork springs,  use 10 to 15 w oil with gold valves , we used these on the race sporties & i  still use these on our fast street bikes .  great for V.RODS  they have a very soft fork  spring problem .  cheers