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Discussion Starter · #1 ·
I have a 2006 Stumpjumper FSR Comp and have the opportunity to get a newer 2008 Stumpy FSR Comp. I notice a few differences.

The 2006 Frame is M4, 2008 is M5. As well, the rear shock on the 2006 passes through the seat tube and mounts to the top tube, whereas on the 2008 is mounted to the downtube, near the BB, and the linkage goes around the seat tube.

Also, the shifter/derailleurs on the 2008 are SRAM (X9 on the rear), whereas the 2006 are Shimano (XTR rear derailleur, LX front, Deore shifters). Also, an extra 20mm of travel on the 2008 Fox Float fork.

Both bikes are in near mint condition. I stand to lose about $100 - $300 if I go for the 2008. Is it worth it?
 

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def not the 06 but they went away from the 08 suspension set up and back to similar to the 06 for a reason. the 08 set up is way less efficient. try and find an 07 or get a new one. the 06 has an m4 frame and very limited aftermarket help.
 

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fyi, you can have the float rl rebuilt, and pushed out to a 140... send it to push, and you can also have it upgraded to a rlc... i did. AMAZING
 

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Big Gulps, Alright!
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captncolorado said:
def not the 06 but they went away from the 08 suspension set up and back to similar to the 06 for a reason. the 08 set up is way less efficient. try and find an 07 or get a new one. the 06 has an m4 frame and very limited aftermarket help.
Care to elaborate on that?

If you're strictly referring to the horizontal vs. vertical orientation of the shock, that has very little effect on the way the suspension behaves. If the vertical shock design had a major effect, they wouldn't design the Pitch the same way.

The 04/05/06/07 SJ design sucked because of the split seat tube and the proprietary shock size on the 120mm models. Cramming a different sized shock in there won't work and it's tough to find shocks in the non-standard size Specialized used (7.25 x 1.75 I believe).

The 2010s and newer, are completely different beasts.
 

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Sure, I'll elaborate.... The new design is exactly the same as the 04-07 that you say "suck". The only difference is the use what Specialized calls a horse shoe, to go around the seat post instead of through it. Otherwise the linkage is identical. Compare pics side by side and you will see.. I say this as my friend works for Specialized and tole me that that is the reason they stopped the vertical orientation on the shorter travel stumpjumper. The epic, and Pitch have a longer shock travel, not requiring the efficiency or small bump sensitivity that a more xc or trail oriented bike needs.. the later two bikes having more of a big bump factor in mind with how they are designed and anticipated to be ridden. And, on those earlier years, you CAN put on a larger shock, check the older threads on this. You CAN do a 7.87x2.0... thus increasing travel by an effective 17mm. AND you can extend the 120 Float to 140. It even shows how in the owners manual from FOX.
 

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captncolorado said:
Sure, I'll elaborate.... The new design is exactly the same as the 04-07 that you say "suck". The only difference is the use what Specialized calls a horse shoe, to go around the seat post instead of through it. Otherwise the linkage is identical. Compare pics side by side and you will see..
The linkage is not identical at all. Comparing the frames side by side doesn't give you a good idea of what's at work. For one, the new SJs are 140mm travel which throws a wrench into the whole argument. The overall leverage ratio is close, but there's no way to compare the wheel path or leverage curve.

I say this as my friend works for Specialized and tole me that that is the reason they stopped the vertical orientation on the shorter travel stumpjumper. The epic, and Pitch have a longer shock travel, not requiring the efficiency or small bump sensitivity that a more xc or trail oriented bike needs.. the later two bikes having more of a big bump factor in mind with how they are designed and anticipated to be ridden.
I don't understand your logic here. The Pitch has 150mm of travel and the Epic has 100mm. One uses a 7.875 x 2.25 shock (longer than the SJ) and the other uses a 7.36 x 1.85 shock (shorter than the SJ). The Epic absolutely needs to be efficient - it's a World Cup race bike. Maybe it doesn't need the best small bump compliance (you give that up in favor of efficiency) but the Stumpjumper and the Pitch certainly do - they are trail/AM bikes aimed at trail riding in general.

And, on those earlier years, you CAN put on a larger shock, check the older threads on this. You CAN do a 7.87x2.0... thus increasing travel by an effective 17mm. AND you can extend the 120 Float to 140. It even shows how in the owners manual from FOX.
Yeah, but it will jack up the geometry and combined with a longer fork raise the BB height. If you want a bike with 140mm F&R and a 70* head angle, it works. Personally, it's a bit steep for my tastes. YMMV.

In short (and this argument has taken place on these forums before) the vertical/horizontal shock position doesn't make much difference. If it did, you can bet everyone would position it the same way. More frequently, the shock position is dictated by frame design, and desired ride characteristics which are dependent on the type of suspension design. The same geometry numbers can be achieved with the shock in either position.

If the newer bike is in better condition, it's a great opportunity to upgrade to newer, less worn components. I imagine it's probably lighter too.
 

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Discussion Starter · #11 ·
Dang! That is way more than I cared to know.

I think that I'm going to stick with the 2006. I just got it a few months ago and it is literally brand new. (The guy bought it and never rode it.)

The 2008, as it turns out, is in excellent condition, but has been ridden for 3 seasons by a serious rider. It's got a little ***** in the top tube too.

So unless there is significant advantage, it's just nice to ride a new bike. A few grams off of the frame isn't worth a couple of hundred bucks for me, and the XTR rear derailleur may compensate.

Thanks for all of the input.
 

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That's what I'm saying!! Holy crap some people are waaay to obsessive with HAVING to prove their side to be what's right. Enjoy the 06, as I LOVE my 07. They don't "suck" and pretty sure mine would dominate an 11'. Take it easy and keep it rubber side down.
 

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I don't have to prove I'm right, but I do take issue with people posting misinformation like it's fact.

I have an 05 and while I do love riding it, the split seat tube deal has given me a fair share of troubles. So yes, in that respect the design sucks.
 

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If that's the case Berkley, open your eyes to the real mods that are out there for this great bike, or get a different one. Unless you build these bikes, you're not correct either, it's speculation... And, everyone is entitled to an opinion.
 

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Also, if the vertical/horizontal shock position didn't make a difference on these bikes, again, Why would specialized go away form the horizontal, only to go back to it....???? and on as you said on the 2010's and newer, which are completely diff beasts?? dang man... go study or something. Better yet, go ride....
 

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captncolorado said:
Also, if the vertical/horizontal shock position didn't make a difference on these bikes, again, Why would specialized go away form the horizontal, only to go back to it....???? and on as you said on the 2010's and newer, which are completely diff beasts?? dang man... go study or something. Better yet, go ride....
http://forums.mtbr.com/showthread.php?t=637589
http://forums.mtbr.com/showthread.php?t=445288

Good explanations there^^

If that's the case Berkley, open your eyes to the real mods that are out there for this great bike, or get a different one.
I did. :thumbsup:
 

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First off, let me note that it's not the end of the world. It's not my favorite design, but I'm not saying they're **** bikes either.

The interrupted seat tube gave me issues at times in terms of extension and dropping the post down low enough to tackle steep stuff. On top of that I always had some sort of cable rub as a result of the way you have to route the rear brake cable.

It was also difficult to check sag, as a result of not having easy access to the shock shaft. I swapped out the stock Triad for an RP23 shortly after I cracked the rocker link right at the weld (not pleased when that happened). The welded link design was a weak point and on hard bottom outs, forces are directly along an axis along the length of the shock and right into the weld. The Triad was a cool idea, but with the 04s and 05s you had to pick small bump compliance or bottom out resistance (maybe they've improved since then). You really couldn't have both. The RP23 did transform the ride though, and was a great improvement.

The 08 design seems like a much more hassle free layout. Full length seat tube and easy to get at the shock shaft (both to check sag as well as clean it). Trek uses the same shock position on their bikes as well and it works quite nicely.

That stuff doesn't matter to everyone, but it gave me trouble.
 

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I have an '06 and would think the split seat tube is a non-issue nowadays with the emergence of dropper posts (one of my next puchases).
 

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I'm not going to trash the other models/years of Stumpy's, but I will highly recommend the '08/'09 Stumpy FSR's. I have an '08. I didn't like the Triad shock, and I didn't like the F120 fork. The frame and its overall design is a work of art and engineering IMO. I installed a 140mm Pike fork and a 7.5 X 2.0 Monarch 4.2 shock on my frame, and this has turned into an absolutely great bike. I now have 137mm travel in the rear and 140mm in the front. The BB height didn't get out of whack. These models have a decently long wheelbase but are still quite flickable.

I think some are putting too much stake in the pros and cons about the shock and linkage designs in the rocker vs. swinglink vs. whatever else Spec is using over time. The magic is still contained in the Horst link and other design features built into the bikes.
 
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