The Official Iron Horse Sunday / DW-Link Tech. & Tuning Section - Page 85

kieram · 02-08-2008, 05:39 PM

i read earlier in the thread that the manitou revox x4/6 wont fit the sunday, but does the new revox isx fit? or is it basically the same shock?

poonstar · 02-08-2008, 05:51 PM

update!!

i was just informed via email from ironhorse that the previous price is lower for the vivid link for the 2008 sunday factorys (for mounting a rockshox vivid) is $55 usd...plus shipping...

Udi · 02-08-2008, 05:56 PM

SRAM's recommendation of the B-Tune came from here:
http://www.ridemonkey.com/forums/sho...3&postcount=47

The Sunday is close enough to linear (not that it matters given the small margin changes for falling/rising rates), 2.66:1 falls clearly in the B-Tune range according to them.

But yeah I do agree with you that the A-Tune would be the one to pick, I'll wait till I've ridden one before I comment on the rebound damping but the fact that it runs a different shaft sounds like it may have the required change.

The compression damping on the B-Tune shock isn't an issue IMO, so the fact that the dw-link bike has more anti-squat shouldn't change SRAM's leverage ratio range recommendations, the issue is that there's too much LS rebound damping at minimum adjuster setting especially for lighter spring rates. So it's probably safe to say SRAM just screwed up a little with their recommendations listed above, or didn't see the issue with rebound damping that I did.

S.K.C. · 02-08-2008, 11:18 PM

Wait a sec...

EDIT: Nevermind... sleep deprivation is an ugly thing...

Udi - needed to send you something - could you clear your PM's?

davep · 02-08-2008, 11:34 PM

the sunday has a 3" stroke shock.
average ratio = 2.6666666666666666666666666666667

SpasticJack · 02-08-2008, 11:34 PM

Except that the Sunday uses a 3" stroke shock, not a 3.5".

8" / 3" = 2.667

S.K.C. · 02-08-2008, 11:50 PM

Yep - I just had a bad case of dyslexia...

9.5 x 3.0... NOT 3.5....

Jeez...

I need a nap... that was embarassing.

Udi · 02-09-2008, 01:07 AM

I just had my nap and it seems like I missed all the fun haha... pm's cleared.

jumpmtb · 02-09-2008, 11:11 PM

Hay there Im new to this site(im from NewZealand and use Vorb), I posted on Vorb that I was having problems with side side movement in the linkage on my second hand 06 repainted Sunday frame with the red DW link, now what im wondering is do the pins that go threw the DW link , menat to have a litle movement , because im trying to get to the bottom of the ridculous amount of play , but cant find the solution, and I can not afford a new kit so am going to try and get my teacher at school to machine me some up, also I was reading about spacers, currently my dw link only has 2 spacers( on there rear) to sapce it between the frame/bearing and the dw link, is it meant to have 2 at the front?

Any help would be really apreciated.
Harry McDonald.

S.K.C. · 02-10-2008, 03:09 AM

Quote:

Originally Posted by jumpmtb

Hay there Im new to this site(im from NewZealand and use Vorb), I posted on Vorb that I was having problems with side side movement in the linkage on my second hand 06 repainted Sunday frame with the red DW link, now what im wondering is do the pins that go threw the DW link , menat to have a litle movement , because im trying to get to the bottom of the ridculous amount of play , but cant find the solution, and I can not afford a new kit so am going to try and get my teacher at school to machine me some up, also I was reading about spacers, currently my dw link only has 2 spacers( on there rear) to sapce it between the frame/bearing and the dw link, is it meant to have 2 at the front?

Any help would be really apreciated.
Harry McDonald.

Harry - welcome to the Monkey!

Definitely! There should be 2 thin spacers on the front part of the link as well where it connects to the pivot point at the bottom of the frame.

EDIT: These spacers should be located between the bearing face and the side of the link so it would be: Bearing-Spacer-Link.

SpasticJack · 02-10-2008, 09:43 AM

I'm not sure if IH still stocks them but when I had the same issue with my 05, they sent me a set of spacers in different widths to take up the play.

S.K.C. · 02-10-2008, 02:53 PM

Jack - that was a different issue. Back in 05' there were some frames from the initial production run with bearing bore issues, so to solve that problem Iron Horse made Shim Kits to either add to or replace the existing 4 spacers (2 at the front of the lower link and 2 at the back where it connects to the rear triangle).

If I am understanding what Harry is saying - he purchased a Sunday used, and is asking if there are supposed to be 2 spacers on either side of the front of the lower link. This leads me to believe that these spacers are somehow missing, and given that it's a used 06' frame, it's possible that the previous owner lost them when re-assembling the bike after a tear-down and didn't bother to put them back in.

jumpmtb · 02-11-2008, 12:16 AM

Quote:

Originally Posted by S.K.C.

Jack - that was a different issue. Back in 05' there were some frames from the initial production run with bearing bore issues, so to solve that problem Iron Horse made Shim Kits to either add to or replace the existing 4 spacers (2 at the front of the lower link and 2 at the back where it connects to the rear triangle).

If I am understanding what Harry is saying - he purchased a Sunday used, and is asking if there are supposed to be 2 spacers on either side of the front of the lower link. This leads me to believe that these spacers are somehow missing, and given that it's a used 06' frame, it's possible that the previous owner lost them when re-assembling the bike after a tear-down and didn't bother to put them back in.

Exactly, Thanks for your help man you seem to be very helpful to everyone and a credit to Ironhorse.With the spacers are they meant to be a certain size? or should I just get some spacers and shim/pack it so theres no play? also the (Im not sure what they are called but they go threw the DW link, and there got big end which are tapered middles) are these meant to have a tiny amount of play in them? or should they be nice and stiff in the DW link?

And again any help really apreciated.
Cheer's Harry.

S.K.C. · 02-11-2008, 03:46 AM

Quote:

Originally Posted by jumpmtb

Exactly, Thanks for your help man you seem to be very helpful to everyone and a credit to Ironhorse.With the spacers are they meant to be a certain size? or should I just get some spacers and shim/pack it so theres no play? also the (Im not sure what they are called but they go threw the DW link, and there got big end which are tapered middles) are these meant to have a tiny amount of play in them? or should they be nice and stiff in the DW link?

And again any help really apreciated.
Cheer's Harry.

Hmmm... no there should not be any play in the axle with the tapered center section that goes through the back of the lower link (although it does say "dw-link" on it - just to make sure we are both using the same terminology, it's just known as the "lower link")

How long have you been riding it without the 2 front spacers? It's possible that under load, the extra play in the front end of the link where the spacers are missing has transmitted torquing forces to the back end of the link and may have put some things out of alignment.

For that matter how long has the previous owner been riding it w/o the 2 front spacers? Yikes.

OK - could you send me some pics from a digi camera of:
1) The inside of the frame bearing holes where the front of the lower link connects to uprights - left and right side.
2) The holes in the front and back end of the lower link (both sides - left and right)
3) The inside of the rear triangle where the back end of the lower link connects left and right side.

Just send em' to me in a Private Message or "PM".

I'll take a look at the pics and then we'll take it from there.

Hey - thanks man, I really appreciate it! Glad I could help. The spacers are supposed to be a certain thickness, but first I'd like to see what the condition is of the contact points where the lower link connects to the frame.

Bernard · 02-11-2008, 01:11 PM

After using a saw, an hamer , a bit of patience and a file I ended up with u super duper Crank/BB setup on my sunday...

The crank fits really well, chainline is ok and the space between the cranks and both sides of the swingarm is ok. I only need to adjust the upper E13 guide a bit... work in progress