not my bike. but a fellow i helped a bit with his 2X4 design dh bike
came out cool. like a proud papa.
http://2stagebikes.com/
came out cool. like a proud papa.
http://2stagebikes.com/
2 stage 2X4 bcd design
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That is nice.
Mmmm, interesting. Do I remember you once saying, BCD, that the only thing that held back such a design was the pedalling interaction? If so, would the platform shocks help the design perform to its full capacity?
Wow, thats incredible! I would love to ride one of those sometime.
wow very nice work on that. 
the site only have a "front Page" do you have any more fotos of details...??
Hopeful you are getting some royalties out of this or at least some credit...
I confess I'm designing a "Downhill tandem" and I look at your prinsiple a lot for inspiration.
well the best of luck no matter what, you have a Big fan right here.
Hopeful you are getting some royalties out of this or at least some credit...
I confess I'm designing a "Downhill tandem" and I look at your prinsiple a lot for inspiration.
well the best of luck no matter what, you have a Big fan right here.
That bike is made in little old New Zealand, theres only 2 in existance at the moment, one steel and that white alloy one.
Nathan Rankin(9th worlds 05) has been riding and testing the bikes for them for the last year and likes it alot.
pretty damn cool bike really, you guys should be hearing more about them in the near future.
Nathan Rankin(9th worlds 05) has been riding and testing the bikes for them for the last year and likes it alot.
pretty damn cool bike really, you guys should be hearing more about them in the near future.
come on Banga, you know they aren't "made" in New Zealand
well since you guys know so much details,,, do you have any more pictures or details...??SlackBoy said:
Ps: If I was ever to find a new country to Live New Zealand will be the one...
The steel one was, mullet boyeeee!!SlackBoy said:
I want one, maybe when the Karpiel explodes I'll get one to hang the Shivers off!!
BCD, what is the weight of that thing? When are you going to have your frames ready? I have always liked your design.bcd said:
platform design shock would not help, it the rollerRik said:
that does the biz.
it has a roller to eliminate any pedal feedback.
my first 2x4 did not have one and was not fun to pedal.
my last one and this bike would perform great.
with airshock on this one there would be no weight
penalty. i suggested he use same leverage ratio and he did
look like a great design. it look like a demo should have! lol
hey bcd
If im not mistaken the advantages of split designs are that the bike absorbs a bump like a high pivot bike(bb7) but then quickly arches back in to minimize pedal feedback?
Is the viruel pivot dynamic like a vpp dsign or stactic?
If im not mistaken the advantages of split designs are that the bike absorbs a bump like a high pivot bike(bb7) but then quickly arches back in to minimize pedal feedback?
Is the viruel pivot dynamic like a vpp dsign or stactic?
I dont know if i like it (not like my opinion matters) It just seams to overcomplicate something that could get done without the use of 2 shocks and the complicated pivots. BCD I have always been impressed with your work... You keep mountain biking moving in the right direction.
Alex do you need "Hand made" renderings or computer made ones....??bcd said:
if is old school, you are in luck i can do that kind all day long
plus i do patent drawings from time to time so your secrets are safe with me..
if is computer stuff sorry but I mega S^ck at them
Gex said:
thanks i try.
but there is no way one shock could create a "ZONE" axle area.
have a look at the drawling again. each shock has its own high and low pivot setting the limits of the zone and allowing any movement with in that area.
i love my 2x4 but i think gearbox's is where its at.
What are the shock strokes on the 2 Stage?bcd said:
very cool....that is cleaner looking than most bikes out there despite the system. Not sure i'd want that system tho
Love the concept and the execution looks clean, but I have to say both versions appear to use the fore-aft shock in the wrong direction - towards the rider. With the unloaded position being the most rearward, it seems to me that the shock will almost never be utilized. If the unloaded position were the most forward, that would make sense to me to aid absorbtion on big (especially square edged) hits.
i'm thinking the air shock is using a negative air chamber, so maybe unloaded the shock is actually at mid stroke, allowing for or aft movement. Although true enough dont really see the need for thatohio said:
Thats a very nice drawing. I love that type of stuff.patineto said:Alex do you need "Hand made" renderings or computer made ones....??
if is old school, you are in luck i can do that kind all day long
plus i do patent drawings from time to time so your secrets are safe with me..
if is computer stuff sorry but I mega S^ck at them
dw