|   NRS rear end | East Coast Dave
Jun 18, 2003 10:50 AM | | I'm looking to make my NRS a little compliant. From my readings I've decided on a new shock (AD10, 12 or Cloud Nine) and/or getting a pair of the longer travel rockers. I will probably eventually do both but cant afford both right now. My question is which offers more bang for the buck. I weigh 160# and have an 80mm Marathon up front for reference.
My riding partner just got a new blur and while I've never had a problem dropping him on hills, the Blur has him more than catching up to me on downhills. And we just cant have that. All opinions appreciated.
ECD |
| The trouble with either of these upgrades... | næstep
Jun 18, 2003 11:52 AM | | ...is that in order to maintain the NRS design efficiency, the shock still needs to be set up to run at exactly zero sag, which negatively impacts small bump compliance as soon as you point the bike down hill.
I did the AD12 shock swap on my '01 NRS and it allowed the suspension to realize full travel, and the compression adjustment was key in tuning exactly how the shock would respond to hits. I could literally set the shock up to achieve full compression on a parking lot speed bump while still maintaining the NRS ride quality, or dial it in and really firm it up, or anything inbetween.
I hope Duckman comes along to make a comparison between the shock and the rocker arm upgrade.
næstep |
| Well, here's what I've experienced | Duckman
Jun 18, 2003 5:23 PM | | ...have yet to try the ad12/cloud 9 swap, but have yet to hear anything but good results from the swap. Have 2 nrs's, 1 w/ a fox float w/ remote lockout for racing, the other with the better of the 2 sids avail having the rebound adjustment. Both have a set of the 4.5 rockers installed, altho the race bike is using the stock 3.5" travel holes that thye also possess. The 4.5" rockers used with the sid makes a huge difference in the way the shock performs. because of the increases leverage, the preload(air psi)must be increases the same %. Thats why one needs the rebound adjustment even more then normal, since this must be increased accordingly. Simple physics. My ride weight with a full Cbak is around 155lb now. In the 4.5" config, I run aprox 190psi in the pos. and 55ish neg. The shock get more rampup(in regards to the forces applied to it)then it does with the stock arms, which is a good thing in this case. This means now it will use its total shaft travel(1.5")even when run with little(like currently its like 10th inch at most)or no sag at all. The bike will descend like it never has before(the difference is amazing), and it climbs technical better because when the shock reacts from topout, it does so with much more compliance from the longer travel and what i think a bit more friendly attack angle that the upper stays enjoy with the larger in scale rockers. Heavier riders might not want to do this since the psi has to be increased, and it has a factory max of 250psi. The rockers for $65 is a bargain when the increased performance/versatility gains are considered.
There...i did indeed come along. LOL!
Heres an older pic, cause that damn SID fork is still around, the blue nrs has the stock rockers still.
Duckster-hoping this helps some |
| Question for ya | meloh1
Jun 19, 2003 6:36 AM | | I've got a 2001 NRS 1 and want a new fork. I'm considering a Black or a Duke in 100mm and also switching to the new rocker. A 100mm fork will change the front end, will the switch to the new rocker (keeping the old SID w/rebound) balance things out? My riding weight is about 175 and I think I should run about 215 in the positive chamber and 55? in the negative, about right? |
| Well, here's what I've experienced | East Coast Dave
Jun 19, 2003 11:25 AM | | Thanks for the input. I love seeing pics of your tricked out NRS's Duckman. I just placed my order for the rockers. Hopefully they can help restore order to the world. Damn that Blur is a sweet bike though.
ECD |
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