发一些少见的零件

swann

视频：http://tw.youtube.com/watch?v=nnaBP0I_dZA 连杆的作用看上去很不错，开始的平地前叉几乎没有动作

swann

GA-force FLAME




Now the fun can begin!!

3CC system
(Three Chamber Cord System) The patent pending 3CC system revolutionizes
air-based mountain bike suspension technology!

For the first time, the advantages of air suspension can be used beyond the
100 mm mark without compromise. The system also offers comfortable travel adjustment.

Coil spring fans have known it for ages: conventional air sprung suspension
systems have a much too shallow characteristic spring line, especially on the
first half of their travel. The result: on downhills: the fork is already lowered so
much by the wheel load shift that very little travel is left when riding over
obstacles – sometimes less than half of the overall travel.

The annoying pedal bob in the sag zone is also caused by a too shallow
characteristic line.





Now, the characteristics of steel coils which are nearly optimal in this case can not only be reached by using the 3CC technology but they can even be surpassed individually. Steeper, shallower or more progressive characteristics can be set up as you wish.


How does the system work?
A piston in front of the main air piston is held in position by a high performance cord about halfway through the travel. Behind this piston on a cord there is a progression chamber with more pressure than the main chamber. If the fork is now compressed, the main chamber at first has a characteristic line as if the piston on the cord was its end, a bit as if the fork “only” had 60mm overall travel. This results in a steep characteristic spring line. Since the pressure in the main chamber rises when the fork is compressed, the pressure in the main chamber and the progression chamber will equalize after a certain amount of travel. From this point on the characteristic line will proceed as if the piston was not there. This results in a “normal” characteristic line until the end of travel.



With the 3CC system, the amount of travel before the point when the main piston and the piston on a cord meet is continuously variable. Changing the setting always results in the optimal characteristic line for the resulting travel.


The USD principle (Up-Side-Down)
The upside-down system has been used in high quality motorbike forks for a long time. The advantages are: the stronger parts of the fork, its upper tubes, are at the highly stressed areas directly below the fork crown. The lower stanchions have a smaller diameter but are not stressed as much. The increase in overall stiffness leads to a better working fork in all riding situations because the telescopically guided tubes are under less tension and are deformed less in respect to each other. The USD system also results in a substantially greater tensile strength of the upper tubes.

The diameter of the upper tubes is 44 mm and that of the lower stanchions 36 mm! This oversize construction is not only extremely rugged but also very light. At 156 mm travel, the sensational weight of the GA-force flame is only 1690 grams! This includes the thru axle, by the way!

The new electronic suspension control system Trail Tronic® can also be used with the Flame which then adapts its damping to the characteristics of the ground. In combination with the rear damper Air-force TT (Trail Tronic®) this gives you the first fully integrated electronically controlled suspension system for bikes!

Compression and rebound damping can also be adapted to your individual needs, of course.

The guide bushings of an USD fork are in the lower end of the upper tubes so they are constantly lubricated by an oil bath, which reduces friction and wear.

The responsiveness of a suspension system is strongly dependent on its unsprung mass. The principle of USD systems shifts the weight up and the unsprung mass only consists of the thinner lower stanchions and the thru axle.

All data without guarantee / subject to change.

德国人很厉害，两段式的行程设计

German Answer公司英文主页 http://www.german-a.de/en/

swann

Three basic physical facts are responsible for the superior function of the GA-force kilo



Trail compensation:
When a telescopic fork compresses, the trail becomes continuously smaller, making the steering characteristics of the bike rather “nervous”, especially when you are braking!

As a trapezoid fork, the GA-force kilos trail can and has been modified, so a constant trail and steady steering characteristics are achieved.

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The wheel trajectory curve describes the movement of the front hub during the compression of the fork. Together with the friction free bearings used in the joints of the linkage this curve is the primary reason for the ultra smooth responsive behaviour of the fork. The beginning of the curve shows in the same direction in which the front wheel is forced by obstacles on the trail. This is extremely useful for absorbing high frequency impacts.

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Anti-Dive-Effect:
The compression of the fork during braking is avoidable through a change of geometry of the trapezoid fork. This enables us to exactly define, at what amount of travel the anti-dive effect completely compensates the acting forces.

swann

One-Piece Design. The “matrix” – the uniting part between the two fork blades. Drawn out of an aluminium profile and extensively machined, this part is significantly responsible for the high stiffness of the fork.

Firm. The construction of the one-part lower unit containing the “matrix” makes extremely high torsion stiffness possible, especially for this weight class! On less load bearing parts the fork blades have been triple butted for an even lighter construction.


Endurance. Altogether eight (!) applied bearings guarantee smooth function and provide long life durability, but are also still easy to exchange.


Love to Detail. The mounting areas for the bearings are precisely fitted and represent only one example for the realisation of high precision “made in Germany”.



Pit-Stop. The externally mounted shock absorber enables the user to quickly change the complete unit. Only two allen screws have to be unscrewed to for example change from coil spring to the air spring shock absorber.


Steering Control. The levers, CNC-machined for minimum weight, define the kinematics of the fork. Their job is to precisely transform every steering movement and therefore have to be quite massive. With optionally available shorter levers this fork is even adaptable to the geometry of older frames.


AIR – The Lightest Option. With just 185 g / 190 mm the SLR is the lightest air suspension unit on the market, perfectly adjustable for any rider weight and demanded performance – from soft to firm, from the alpine grasslands to the last meters in front of the finish line.


State of the Art Comfort. The shock absorber with steel coil spring has even more sensitivity, so it literally sucks up every gravel stone. Even this damping unit weighs a mere 270 g (inclusive steel coil)!

You Decide. Disc-only, cantilever-only or cantilever & disc- compatible adapters - individually deliverable.


Axel load. The axes are the connecting elements between links, double-fork, crown and “matrix”. They are hollow for weight reduction with an outer diameter of 12 mm.

swann

TRAIL-TRONIC®

TRAIL-TRONIC® is the first fully integrated electronically controlled suspension system for mountain bikes.
Instead of the first impression it is an uncomplicated and really reliable system.
It follows a very simple fact: If you go over something with your front wheel, you are bound to hit it with your rear wheel, too! So as long as no impact takes place at the front, the rear suspension can be left locked out.
This is how TRAIL-TRONIC® works: It uses the front wheel as a terrain sensor. The vertical acceleration of the front wheel is measured and judged by the system. Should the impact bound to hit the rear be compensated by suspension or is the bump small enough to leave the lockout active?
The best thing about this system is that you decide where the threshold should be! If a firm hardtail-like ride is more important to you, you can make the system only open the rear lockout when massive impacts are imminent. If you are a friend of extreme comfort, you can make the system only lockout when you are on a street-like surface.
It’s like if you were fast enough to adjust the rear lockout after you felt the impact on your fork (but you’re not!).
The reliability issue: So what happens, when the system reacts the wrong way?
So what happens, when the system fails due to low batteries?
Weight:
The complete system including batteries weighs a mere XXg.
Compatibility:
TRAIL-TRONIC® is compatible to any full suspension system. All you need is one of our TRAIL-TRONIC®-ready rear suspension, everything else stays the same: Suspension on demand!

不服不行啊 最聪明的电子后避震就这样产生了。。。

swann

前叉厂家的主要内容介绍完毕   谢谢收看

swann

nokon 碳鱼骨

So the for a long time highly anticipated Nokon carbon shifting sets have finally been released. There are two versions: one being compatible with Shimano STI, the other one (due to the addition of two metal coils that go beneath the bar tape) with Campagnolo Ergopower and SRAM DoubleTap.

They come in a fancy "CD box" and besides the actual carbon elements and the Nokon liner, also include two wire cables, four aluminum end caps, one small teflon connection liner (for a continuous assembly), two sealings, two small frame protector stickers and a manual.

As for the weights:
- Nokon metal coils (for Sram/Campy): 16g pair
- 50 Nokon Carbon elements: 11g
- 1 mtr. Nokon liner: 6.5g
- 1 mtr. Nokon Carbon incl. liner and alu end caps: 29g

chris1987

有些超前...

刘影

用7克一根的纤维内线，还可以更轻

ez2mix