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View Full Version : - more carbon dh bikes, sheesh, when is it going to stop....


bcd
03-27-2006, 09:06 PM
i am sick of all this carbon hoopla. dude, the stuff breaks
and doesn't belong in dh! so carbon is lighter, stronger and will last longer than the same weight steel or alum bike. gheeesh....:rolleyes:

http://www.krutor.cz/

http://www.krutor.cz/bikes/hrotor/krutor_hrotor.jpg

http://www.krutor.cz/bikes/photos/petr_hrotor_02.jpg

stinkyboy58
03-27-2006, 09:08 PM
ugly bike

Jm_
03-27-2006, 09:12 PM
How much weight does he save with the 3.0s on doublewides?

zedro
03-27-2006, 09:13 PM
wow, and i thought my pivot was rediculous high and foward...

would love to do a CF bike one day

Mattoid
03-27-2006, 09:18 PM
Eww, that is sick. Will it break? No. Will it force a little peice of me to die? To late.

Kanter
03-27-2006, 09:23 PM
Is the rear shock reservoir the front shock? You can see the tube running up to the fork.

bcd
03-27-2006, 09:26 PM
wow, and i thought my pivot was rediculous high and foward...

would love to do a CF bike one day

he prob buys his tubes from japan/china
they are wraped in uni and then painted.

i bet he makes the mold for the sw and it is the same left to right
like mine. i bet he can make then prety quick. CZ guys do good work.

bcd
03-27-2006, 09:29 PM
Is the rear shock reservoir the front shock? You can see the tube running up to the fork.

http://www.krutor.cz/bikes/hrotor/photos/krutor_hrotor_detail_08.jpg

can't tell?

maybe a breather?

patineto
03-27-2006, 09:31 PM
http://www.krutor.cz/bikes/krutor/first_krutor.jpg

bcd
03-27-2006, 09:32 PM
i think its pretty cool.
cool fork. they have some tools.

http://www.krutor.cz/bikes/hrotor/photos/krutor_hrotor_detail_01.jpg

manhattanprjkt83
03-27-2006, 09:44 PM
i think i just threw up in my mouth.

vitox
03-27-2006, 09:45 PM
wow, definitely lots of stuff i hadnt seen before and all in one picture

that includes a new level of ugly, but thats just me of course.

whats with the aggro theme and east europe anway, it seems to have its stronghold there, the terrain maybe?

the one patineto posted is slick though.

bcd
03-27-2006, 09:47 PM
one more proto they made.
i just got a randon email from them.

no english just the site.

http://www.krutor.cz/bikes/zampro/krutor_zam_pro_prototype.jpg

dhpimp
03-27-2006, 10:00 PM
Would someone tell me what in the HELL those cranks are? 12 years in the industry and I've never seen those...

Transcend
03-27-2006, 10:05 PM
that includes a new level of ugly, but thats just me of course.

not just you.

Alex, how much would some good gouges compromise integrity on that? I lay my bikes ton a ton in practice, i'd be pretty afraid of taking chuncks out of that if they reduce integrity too much a la carbon bars.

zedro
03-27-2006, 10:10 PM
not just you.

Alex, how much would some good gouges compromise integrity on that? I lay my bikes ton a ton in practice, i'd be pretty afraid of taking chuncks out of that if they reduce integrity too much a la carbon bars.

its the same premise as any material; the more critical the structure, the more damage can lead to failiure. More layups is like thicker aluminum; dents just arent as comprimising.

zedro
03-27-2006, 10:12 PM
Would someone tell me what in the HELL those cranks are? 12 years in the industry and I've never seen those...

look custom....with huge stress risers and all....

frznnomad
03-27-2006, 10:15 PM
manhatten you were able to contain that to your mouth. geeze im having to wipe off the keys and screen just to type this. you guys can keep all your carbon hype, but personally i think steel is real and alluminum is the only replacement.

manhattanprjkt83
03-27-2006, 10:36 PM
manhatten you were able to contain that to your mouth. geeze im having to wipe off the keys and screen just to type this. you guys can keep all your carbon hype, but personally i think steel is real and alluminum is the only replacement.

Aluminum is great, but manufacturers are starting to realize they need to integrate carbon into our components to continually lighten them. I am all for carbon, just not in the form shown in this thread...

dhkid
03-27-2006, 10:43 PM
who photo-choped out the pinkbike logo?:rofl:

SCABRIDER
03-27-2006, 10:56 PM
small areas of it look tyte but as a whole if effing ugly...

mobius
03-27-2006, 11:01 PM
Meh i'm still afraid to use carbon deraillers.

frznnomad
03-27-2006, 11:02 PM
ill agree carbon in certain areas such as handle bars (maybee), derrailures, shifters, and seat post i can see, but deffinatly not a whole dh bike.

EVRAC
03-27-2006, 11:19 PM
I like it.
I've never seen so many new things on one bike.
Makes my head spin.
They've got some creative energy to spare.
The crank spindle interface with 8 pins and a pinch bolt.
The pedals which are all bolted together.
The fork - shock hose?
The hubs?
The fork for cryin' out loud.
Did they make every single piece of that bike?
Fantastic.
Madness.

Metal
03-27-2006, 11:49 PM
not just you.

Alex, how much would some good gouges compromise integrity on that? I lay my bikes ton a ton in practice, i'd be pretty afraid of taking chuncks out of that if they reduce integrity too much a la carbon bars.

Fraser, you'd be surprised how strong carbon fiber is to direct rock impacts. There is video floating around where I bail doing a big transfer in Whistler. My Inedible basically smashes up against a bunch of sharp rock and tumbles down to the flats. I thought the frame would have busted, but was still good.
I also didn't run fork bumpers all season. I allowed my Romic crown to hit the headtube lug. At the end of the season, the sharp point of the crown was all rounded over and there was only a very small indentation on the lug. You'd be surprised how resilient that stuff is.
With that said, I am still sketched out running carbon bars.

Transcend
03-28-2006, 12:11 AM
Fraser, you'd be surprised how strong carbon fiber is to direct rock impacts. There is video floating around where I bail doing a big transfer in Whistler. My Inedible basically smashes up against a bunch of sharp rock and tumbles down to the flats. I thought the frame would have busted, but was still good.
I also didn't run fork bumpers all season. I allowed my Romic crown to hit the headtube lug. At the end of the season, the sharp point of the crown was all rounded over and there was only a very small indentation on the lug. You'd be surprised how resilient that stuff is.
With that said, I am still sketched out running carbon bars.

I'm actually not worried about the impact resistance, I know that is pretty darned good (possibly better then Al). What i am afraid of is scratching that screws up the surface layers. On bars and such, this can lead to stress risers and catastrophic failure due to even the smallest of scratches and such.

You definately put that inedible through it's paces. That bike was abused, beyond a doubt. From the threaded rod, to random pedals. :weee:

BigMike
03-28-2006, 12:45 AM
I'm suprised this hasnt been raised yet....... how much?!

That thing looks SERIOUSLY expensive!

LaytonDH
03-28-2006, 12:48 AM
Would someone tell me what in the HELL those cranks are? 12 years in the industry and I've never seen those...
Whatever they are, I think the guy in the Blue Thor Jersey on the first post is in the process of breaking/ bending the left one.

vitox
03-28-2006, 05:43 AM
I like it.
I've never seen so many new things on one bike.
Makes my head spin.
They've got some creative energy to spare.
The crank spindle interface with 8 pins and a pinch bolt.
The pedals which are all bolted together.
The fork - shock hose?
The hubs?
The fork for cryin' out loud.
Did they make every single piece of that bike?
Fantastic.
Madness.


yea man now im looking at it and theres so much going on, it would be incredible if it was one mans work, the hose, WTF, reservoir inside the fork maybe? or "harmonic suspension" to another level"?

dont we have any CZ monkies on board to translate?

goofy
03-28-2006, 06:46 AM
Whatever they are, I think the guy in the Blue Thor Jersey on the first post is in the process of breaking/ bending the left one.
It really looks like the whole BB is snapping off

bcd
03-28-2006, 07:08 AM
yea man now im looking at it and theres so much going on, it would be incredible if it was one mans work, the hose, WTF, reservoir inside the fork maybe? or "harmonic suspension" to another level"?

dont we have any CZ monkies on board to translate?

might have a mini's hydrolastic suspention

fluid transfer tru one to raise anothe and keep it leval.

http://en.wikipedia.org/wiki/Hydrolastic

http://www5a.biglobe.ne.jp/~port/hidoro1.jpg

bcd
03-28-2006, 07:17 AM
I'm actually not worried about the impact resistance, I know that is pretty darned good (possibly better then Al). What i am afraid of is scratching that screws up the surface layers. On bars and such, this can lead to stress risers and catastrophic failure due to even the smallest of scratches and such.

:

i only run OD carbon bars. larger area distributes the stress.
over clamping can break a bar just as fast as a big scratch.
bars are prone to break easyer than frames. they have no
support structure like frames. they acually scare me the most.

i have broken 3 carbon bars. one i made. that was the last bar i
made. i think you a less likely to scratch then break and more likely over tighten and crash on it and break it.

most carbon sold has a clearcoat that brotects it from hits and will flake off. that kind of chip is fine and does no damage to the stucture.
i heavy gouge where you see fraying might. but then again those are
just a slim few of many carbon strains going all true your bars.
you would be suprized how much extra material is in cabon dh stuff.


alex

bcd
03-28-2006, 07:20 AM
ill agree carbon in certain areas such as handle bars (maybee), derrailures, shifters, and seat post i can see, but deffinatly not a whole dh bike.

you protect your head with a composite material..................
do you trust your helmet not to shater and dent your scull.

maybe you should get a steel or alum one.:rofl:

dw
03-28-2006, 07:35 AM
Impressive craftsmanship for sure. Take a close look at the cranks/ rider's feet in the second picture (riding picture)

sayndesyn
03-28-2006, 07:55 AM
guaranteed the euros will buy it like a gold plated Nicolai in germany... In da house

dhbrigade
03-28-2006, 08:17 AM
I'm from eastern germany an often raced in CZ. There are a lot of really fast guys riding there custom made carbon dh bikes. As far as I know are there some carbon specialists, engineering at Mercedes Benz.
Anyway, the bikes are ugly as hell, but they work. The monocoque bikes are a little bit noisy...

Kevin
03-28-2006, 08:24 AM
Alex

What do you think about Eastons Nano tubing?
Ive been running a CNT monkey lite on my dh bike all year and its seen its share of abuse (think dh racing, not drops).
I must admit it felt a bit sketchy at first but I trust m as much as any bar now.

How much would a frame like that (or an Inedible) weigh?
Seems you should get the structure right to make it stronger and lighter so are current carbon models allready up to the task of competing with alu models?

vitox
03-28-2006, 08:40 AM
might have a mini's hydrolastic suspention

fluid transfer tru one to raise anothe and keep it leval.

http://en.wikipedia.org/wiki/Hydrolastic

http://www5a.biglobe.ne.jp/~port/hidoro1.jpg


hey that was what i was thinking about, my dad always goes on about how good that system was.

peter6061
03-28-2006, 09:01 AM
Impressive craftsmanship for sure. Take a close look at the cranks/ rider's feet in the second picture (riding picture)
What are we looking at there? A sheared off crankarm? The whole crank/bb ripped out of the frame? Some photshop?

seismic
03-28-2006, 09:24 AM
Well, they might look different but I respect that people are trying to develop new designs....

bcd
03-28-2006, 10:03 AM
What are we looking at there? A sheared off crankarm? The whole crank/bb ripped out of the frame? Some photshop?

i think it is a pedal slip

bcd
03-28-2006, 10:04 AM
hey that was what i was thinking about, my dad always goes on about how good that system was.

my dad too, lol he said you could WOT in dips and speed bumps

Jm_
03-28-2006, 10:17 AM
might have a mini's hydrolastic suspention

fluid transfer tru one to raise anothe and keep it leval.

And it looks like it will work.

Untill you hit two bumps at once, and then you are screwed.

After looking it up, it doesn't look very impressive, the fluid enters rubber bladders, that provide spring force, so it's not like there's no spring in there, it's just a different kind of spring. The whole idea makes sense untill you have multiple bumps and the timing is going to screw it all up.

bcd
03-28-2006, 10:21 AM
Alex

What do you think about Eastons Nano tubing?
Ive been running a CNT monkey lite on my dh bike all year and its seen its share of abuse (think dh racing, not drops).
I must admit it felt a bit sketchy at first but I trust m as much as any bar now.

How much would a frame like that (or an Inedible) weigh?
Seems you should get the structure right to make it stronger and lighter so are current carbon models allready up to the task of competing with alu models?

nanos are cool but out of my price range. when they get long it will change everything!


my inedibles were ar 7-10 lbs depending on you weight and shock choice. yes my bikes will take anything and last longer than the same weight alum, steel frame.

bcd
03-28-2006, 10:23 AM
And it looks like it will work.

Untill you hit two bumps at once, and then you are screwed.

After looking it up, it doesn't look very impressive, the fluid enters rubber bladders, that provide spring force, so it's not like there's no spring in there, it's just a different kind of spring. The whole idea makes sense untill you have multiple bumps and the timing is going to screw it all up.

yeah and iff you weight the back of your bike it would hike you fork up! :dead:

OGRipper
03-28-2006, 12:07 PM
Wacky stuff. I like it. Although I guess there could be something we can't see or maybe it's ported through the crowns somehow, I don't see how the shock and fork have a connecting circuit, looks more like they are using the steer tube for a resevoir for the shock.

Or maybe it's a shock-speed sensitive steering damper... :looney:

mandown
03-28-2006, 12:28 PM
i think i just threw up in my mouth.

hey, no stealing my joke :mumble:

Sherpa
03-28-2006, 01:16 PM
nanos are cool but out of my price range. when they get long it will change everything!


my inedibles were ar 7-10 lbs depending on you weight and shock choice. yes my bikes will take anything and last longer than the same weight alum, steel frame.

And when is the next round going to be done?

Jimmy_Pop
03-28-2006, 01:29 PM
And when is the next round going to be done?

Also, since now that you have the CNC, will the little bits on your frames be any different than before? Maybe it was just the years of riding/repairing but Seths bike had alot of Home Depot going on. Im a big fan of your bikes. Can't wait to see what the next gen of your bikes might bring.

joel

Metal
03-28-2006, 01:53 PM
Also, since now that you have the CNC, will the little bits on your frames be any different than before? Maybe it was just the years of riding/repairing but Seths bike had alot of Home Depot going on. Im a big fan of your bikes. Can't wait to see what the next gen of your bikes might bring.

joel

Just like myself, I am sure Seth would have Home Depot on a brand new bike. Given the choice I would rather run some ghetto stuff than miss a ride/race. Hell I ran a piece of all-thread as an axle on my Inedible for the first day and used zip-ties as shock spacers till I could get some proper aluminum ones.

bcd
03-28-2006, 01:59 PM
yeah, the cnc will provide a lot of clean parts. all being exact and identical.
way easier for me too!

well the rear dropouts will bolt on to the SW. then they will clamp the axle. MM or MM. they can be replaced for horizontal for and if the cog box comes.

the Ty-head-TD will bolt to the mid frame and will have 3'' of front center adjustment. if any parts on the frame ever get damaged there will be no repairing just bolt a new one on. saves time and money.
and allows new features to be attached to your older frames.

modular baby.