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Varaxis

Varaxis

Well-Known Member
The new Stumpjumper FSR. It's to be officially revealed this weekend, but pics are already leaking onto various sites.

iCg97GH.jpg


Breakdown of what's new, based on hearsay:
- Evolution of SWAT (Storage, Water, Air, Tools), to use the space in the downtube, accessed through a door, which doubles as the bottle cage mount
- Boost 148
- New school geo: longer top tube, shorter rear end, lower BB and stack height, slacker
- Taco blade, optional removable FD mount
- Roval Traverse Fattie wide 29mm internal width rims
- Full internal cable routing, instead of Spec's usual under-the-downtube routing
- Comes in 27.5, 27.5+, and 29

Other FSR bikes will see changes that reduce overlap. There will be an Ohlins coilover shock available. They're missing the bright fluorescent green/yellow/orange or enduro blue color trend though.

This could be a glimpse of what mtn bikes of the future will soon be like. More news should be coming over the next few days from DirtFest.
 
I am hoping that the bike industry is changing standards fast enough to make everybody stop buying bikes altogether out of fear they will be obsolete in 6 months when a new experiment becomes the new standard. Everybody who had upgaditis to get the latest carbon 27.5" bike over the past two years will now feel left behind and the same urge to have the latest will return to haunt them.

Speshy and Trek were late to the 27.5" game, hoping it wouldn't catch on. They don't want to be late for the next fad.

There has to be a balance between worthy innovation and "how-can-I-sell-more-shi#-by-making-wealthy-old-guys-feel-left-behind" thinking. I know which side of the ledger Specialized is always driven by.

Trailhead parking lot conversation:

Pedro: "It's a Sledgehammer..."
Napoleon: "Shocks...pegs.......lucky"
 
And here you go.. Look at pretty pictures and read all about it. Funny how quickly PB readers went to weed...

<a class="postlink" href="http://www.pinkbike.com/news/first-ride-2016-specialized-stumpjumper-fsr-2015.html" onclick="window.open(this.href);return false;">http://www.pinkbike.com/news/first-ride ... -2015.html</a>

I wish their bikes sucked. It would certainly be easier to hate the company if their products were bad. :twisted:
 
Great bikes overshadowed by horrible business practices. Unfortunately for me one does not overcome the other to justify.
They look to be sweet rides!
 
Yes you have...but I'm listening... ;)
You can post a pic of you hugging your bike to prove your point... :roll:
 
They idea of ditching my saddle bag with down tube storage sounds pretty good. Not buying a Spechie anytime soon, but I like the idea.
 
The Boost 148 is only found on the 27.5+ and there actually is orange and flo yellow/green option. The SWAT downtube compartment is the most interesting change. I figured after seeing that Bold Linkin Trail that it's a matter of time before someone stuffs the rear shock down there, for ultimate in low and centered CoG, but cargo is cool too and leaves the shock accessible. One step closer to ditching the pack for good. Overall, believing the hype of big change kind of left me disappointed. Honestly hope there would be innovation as fast as Herz jokes about.
 
Varaxis - help us with the physics of the interrupted downtube. If 6" of the top tube is "cut in half" to install the storage bin, what happens to the structural integrity? Seem like the bike would be apt to fold in that location. If it's just as strong in that location, why not make the entire downtube in the same shape?

I guess they have some experience with thin lengths of carbon with their one-sided seatstay on the Demo.
 
The forces that act on a bike don't really create a stress/strain hotspot near that area. That spot just is there so lend support in spreading out a load, between the BB and headtube, mainly dealing in rigidity. It's not as critical an area, compared to right behind the head tube.

Look at it this way, Giant doesn't make its aluminum downtube curve to be more horizontal only to give clearance to suspension fork crowns and adj knobs. A tube is strongest along its length, not along its girth. If you align the tube to have its length take the force directly, rather than at an angle, it would resist the force better, which in this case makes stiffer and stronger against frontal impacts. Same with the Intense, Canyon, Mondraker, etc. top tube shaping. Carbon fiber composites don't quite work like metal. It's a textile. You can take a sheet of fibers and take a pin, and poke the pin through and push the fibers aside to create a hole, and its tensile strength won't be compromised. Do the same with a knit sweater. Brush on an epoxy resin and cure to have it retain that shape. On the other hand, if you cut the hole out, then the strength will drop and you'd have a lot of useless short strands, where if you pull on the ends the cut strands aren't contributing, leaving it to the uncut strands to take care of the load. It's like Enve's molded spoke hole, vs a drilled out one, but bigger. How you make the hole matters a whole lot.

It'd really only be weak if it took an impact pretty much directly in that area, which doesn't really happen in real riding. Maybe you lean your bike by leaning a pedal on a short rock, and the wind blows and it tips the bike over and the bike lands on the rocks and hits it there, that might create a crack, but it would take repeated hits like that to really start spreading the damage, as it's pretty far from the areas that actually do see strain. The strain those areas see are mostly dissipated before that area is recruited to help resist them. Anyways, introductory stuff tends to be overbuilt. I saw the inside and it has a lot of 3k weave, meaning they figured it'd see some abuse and want to minimize accidental cracks from spreading. That first gen carbon Nomad's downtube was overbuilt too, the one you see people reposting that pinkbike vid everywhere. It's only the underside of the downtube on that frame that's really like that. They've dialed the toughness back on their later gen carbon models to save weight. There's likely a drop in stiffness due to the hole, but they can just increase stiffness to target levels through beefing up other parts of the bike. In this case, it looks like they used the seat tube to increase BB stiffness.

jzpCnO0.jpg

(look at how much more beef they added to the linkage for stiffness to make up for no seatstay bridge, compared to the Enduro 29)
 
I like the storage because you can put stuff in there. I don't like it because you can put stuff in there...because all the new lightweight parts I put on will be negated by the stuff I stuff into the storage compartment. :mrgreen:
 
It's funny that the storage compartment is getting more attention than the other "innovations" such as the hub spacing. A long time ago, in a land far away, mt. bikers used to put some tools and a spare tube in a small bag under the seat and cinch it tight to prevent rattling. Said rider likely attached a tire pump to the frame alongside the water bottle. Evidently seat-bag storage options just aren't cool. I will admit that I got rid of mine more for how it looked than for how it functioned. Now that dropper posts and 5" of rear suspension are de rigeur, I imagine the complaint would be the tire hitting the seat bag when the post is down.

I would love to ride without a backpack, but in our SoCal dust, the water bottle gets caked with filth - especially if you are following someone - so grabbing a sip on the fly comes with a grit penalty. I also don't like riding without basic supplies such as flat repair, a bit of food, zip ties, a multi tool with chain tool, spare link, spare derailleur cable, tape, bandages, a spare contact lens, saline, etc. So, the hydration pack is always with me. I will admit that when doing shuttle or chairlift runs, I go without the pack. And it feels so good!

I think Yukon Cornelius had a thing or two to teach us about life sustaining supplies - cornmeal, gunpowder, hamhocks and guitar strings:

<a class="postlink" href="https://www.youtube.com/watch?v=NV7nEkt2ySI" onclick="window.open(this.href);return false;">https://www.youtube.com/watch?v=NV7nEkt2ySI</a>
 
It's about time a manufacturer utilized the space in a downtube for something such as storage. it's something I've pondered for years especially with how large the diameters are now days. I'm still waiting on the compressed air frame tube so you don't have to carry a pump. Could also be used for jet propulsion. Hit a button and get a blast up the hill. Ok I'm kidding, maybe. Looks like a fun bike. Did anyone see the weight?
 
A lot of people don't bother weighing their other gear, pack, shoes, helmet, shorts and jersey, gloves, keys, phone, etc. It adds up. I'd rather carry this stuff on the frame. It feels great riding without a pack, like you say. Sometimes you have to come heavily prepared which you could only carry with a pack, like if you're doing an long out and back, rather than a loop. Too bad I have a quiver and refuse to buy multiple sets of tools. I'd use a seat pack on my HT, but on my FS bike, the tire would destroy it like you say. I like the Camelbak Podium water bottle to counter the filth. I really like the SWAT innovations. Mtn biking is very photogenic, so people are more concerned about looks than they would like to admit.
 
Looks schmooks! I have everything I need in my saddle bag and 3-pocket jersey. I carry my phone in a Schwinn handlebar bag atop my bars.
0d6ec47518cdd28641ad0c6ddad22619.jpg

Being the Special Ed fan boy that I am I love the down tube storage. That along with SWAT I'd be able to omit the saddle bag. Was thinking a Ripley was on the horizon but if twice the price doesn't make me twice as fast then it ain't gonna happen. Hopefully these will be at their next local demo.
 
<a class="postlink" href="http://reviews.mtbr.com/first-look-specialized-stumpjumper-and-rhyme-fsr-6fattie" onclick="window.open(this.href);return false;">http://reviews.mtbr.com/first-look-spec ... sr-6fattie</a>
 
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