Value of carbon wheels

2016-04-06

　In the macrocyclic race televised screen, you can see the riders with carbon wheels, carbon top tube tire wheel aluminum wheels, carbon wheels and carbon wheel Racing 0 and Shamal like though when found, but has been extremely rare.

In the plebeian circles, many manufacturers claim that the carbon knife can significantly save your power to improve your score. This is where the value of the carbon wheel? Its value worthy of its price?

Chatting always wander between riders on upgrading equipment and equipment, and often the topic is always transferred to the upgraded wheel group. In fact, more and more fans think, for one pair of wheels or a change other than a change of kit What more can improve their athletic performance. There are an inappropriate analogy: Many fans feel that the road car wheels is the car's engine.

Performance of major wheel plant thriving in the past decade, I guess a lot of riders are not unrelated impulse upgraded wheels. At the top of the pyramid of carbon fiber wheels market expansion was particularly significant. They can greatly reduce the time and claims to power, to help drivers get better results as if as long as for one pair of carbon knife, your car is fitted with a nitrogen acceleration. In this respect, carbon wheel "cost" is really quite high.

Especially the high end market almost saturated now than cheap carbon fiber wheels have begun to compress down living space aluminum alloy wheel group. I do not know aluminum wheels will not be the same as the aluminum frame is compressed to the underlying market gradually until the fade out, but I do not think no chance. 15 years ago,the drivers could not believe the massive popularity of carbon fiber frame, carbon fiber materials are too expensive because there is no proof of performance in the contest, unreliable. But now ......

According to marketing is that it is very light weight and better aerodynamics important value of carbon fiber wheel group. As we all know the advantages of lightweight carbon fiber. The wheels of the major manufacturers have begun the process of wide-body and further strengthen its aerodynamic properties. The mid-1990s CampagnoloShamal box high 40mm, weight is 1980g, had already been
considered simply incredible heights. And now, more than 50mm high carbon wheel set weight is hardly more than 1500g.

Carbon fiber is only one color, but different arrangement of carbon fiber can get a different look,Another advantage of carbon fibers is that it can be molded into precision molds of various shapes. With the help of hydrodynamic models, computer simulations and real wind tunnel tests, the shape of the carbon wheels can do limit the ability of manufacturers. Publicity breaking wind and wind resistance is now the main direction of the carbon wheel marketing, and these capabilities can be sorted by
quantitative data, so before deciding to buy, you can be very visually compare air resistance and other properties of the models round group.

A typical wind tunnel test chart, note wind between 10 ° 15 ° Most wheels to achieve the minimum drag, rather than in all directions to the wind can be very low resistance.

Bontrager 2011 years of research data fromWith carbon fiber rims of wheels or even the whole group, can achieve a very high stiffness to weight ratio.

We all know the characteristics of carbon fiber frame: it can be very hard in one direction, very high rigidity. Carbon wheel set is usually done a very high rigidity, which can reduce the number of spokes.Compared to carbon wheel set carbon fiber frame and other parts of its material requirements more stringent, top carbon wheel will be a lot more than the use of M40 grade carbon fiber to uplift rigidity, while generally more pursuit of T800 carbon wheels are basically dominated. Meanwhile, carbon fiber wheels are relatively less care about strength. And see what the outcome is, after hitting a dog LightWeight it ......

Meanwhile, due to the manufacturing method, in the production of the aluminum frame is not possible to ensure complete and non-circularity yaw, but high quality carbon fiber rims can achieve this, so that the spoke tension is more evenly and higher quality wheels. Thus, carbon wheel set on the track easily overwhelm the aluminum is taken for granted.

This is one reason why the price of expensive carbon fiber rim ...... their yield is still not particularly high, and therefore there will be sub one thousand two hundred thirty-four other goods ......

Very light, very high aerodynamic resistance, very high rigidity weight ratio, while the performance in athletics as a primary consideration, carbon fiber wheels is obviously very valuable. But why, still a lot of people think that carbon fiber wheels "too expensive"?

Bucket short board

Carbon wheel box can provide ultra aerodynamic advantage, but the wind in complex environments, it may significantly affect the handling of the vehicle.

Obviously such a wheel is relatively narrow range of applications. In addition, manufacturers often promise a set of wheels can reduce the number of resistance, but this is not a universal value claims. The minimum wind resistance group among many rounds 10 ° -15 °, once the winds exceed this range

for example, you turn a corner drag may suddenly become larger, which is also likely to cause problems on manipulation. I do not doubt the authenticity and validity of wind tunnel testing aerodynamics. But in the real world effectiveness of how they occurThrough strict control variables, researchers have established a perfect environment in which to measure wind resistance, in this environment is constant wind speed and direction, which in turn means that changes in wind speed and direction could significantly affect the results of measurements. In other words, the gap between the wheels of each set of air resistance of the label is so small that they can only be measured in a highly controlled environment.

These data are measured on the wheel itself, without considering the situation when the wheel is mounted to the vehicle later. Bontrager do in their research reports a top TT frame (okay, Cech trouble licenses), and together they drag the wheel test, the conclusion is still the change in wind direction will greatly affect wind resistance.

Therefore, the so called aerodynamic advantage in reality, it is impossible to reach the theoretical results.

This is a rather idealized model.As a crane tail slag slag, Sajia FTP 240w, peak 5min (called VO2MAX estimate) 285w, but people said that to be able to perceive the obvious same 50 boxes high wheels, wide circle (AEOLUS 5 D3) and a narrow circle(qUICK RT50) 38 39 per hour when poor heart can jump to almost 10 ...... let alone the gap between high and low box frame 50 rounds in less than 30 ...... but between the various brands of wide circle of pneumatic absolutely no difference different laboratory grade, that's for sure....... But from a wide circle of aerodynamic absolutely no difference among brands of different laboratory-grade, that's for sure.

This is a lot of wheels have warning labels, whether carbon wheels or aluminum wheelsIronically burning box is another issue all carbon wheels are likely to face. Many people believe that the braking performance is lower than the carbon frame aluminum frame and easy to burn the box, which is insecurity. Now, under the efforts of various manufacturers, carbon wheel brake performance and reliability have started catching aluminum frame round. However, prolonged continuous brakes may still lead to brake failure side, especially carbon rim brake wheel opening edge  pros would not be so brakes, amateur riders with some experience would not be so brakes, but most of the ordinary people have become accustomed to his mouth, downhill braking,
especially in the kind of long, steep slope.

Reynolds and EKAY other companies developed their unique recipe brake blocks, brake to slow the rising edge of the temperature and requires riders must use their designated brake blocks. But the risk still exists in some American race organizers ban the use of carbon wheel riders. Recent reports indicate the presence of more and more question marks reliability carbon side opening round group. The vendor selection coy. Disc might be a good choice, but it also faces a lot of problems.

In short, the user side of the brake concerns reduce the value of the carbon wheel.swissstop of yellowking is the world's most commonly used carbon Wheel brake blocks, but many manufacturers prohibit drivers using this brake blocks on their wheels. Swissstop recently launched Black Prince, claiming more than yellowking control heat build up. But me personally, more recommended to use cork brake blocks of course not CORIMA.

Personally, usually basic is to use carbon wheel when aluminum wheels. Played for a long time the brakes, also played long hard braking, even under Sanzhoutian

Shenzhen, in the end, when the brake side nor more than 70 degrees ......

Another aspect of the anti-burn box of good universal wide circle frame and carbon fiber cloth air volume

expanding area of heat is beneficial.


In addition to the brake side than carbon wheel strength and durability how?

To be fair, the manufacturers, these wheels basically no problem. But after all, is not like the carbon fiber material to withstand shocks. Wheel manufacturers are often reluctant to publicize their rims have any technology, but also rarely provide information on the rim durability (especially brake edge durability) of. ZIPP emphasize their rims with Kevlar fiber for strengthening the (socalled Carbon Bridge), and with a
woven around the spoke holes for reinforcing (mom egg that you have so low tension limit?!).


The EKAY directly by molding the spokes holes drilled to avoid structural damage may bring. I can not say whether these designs can play a big role, but at least those tons bought cheap from Xiamen to Taiwan and then just find a guy up in the Netherlands

Westerner series wheels fly ratio.

Zinn's FAQ, which has a buddy Q: My Reynolds OOXXOOXX round group spent more than five years to run tens of thousands of kilometers, brake side seems to have very thin ...... can repair it?

This seems to explain the basic brake edge durability.

As for the durability of the rim, see now Paris-Roubaix all are carbon wheels, you know how much material technology advances in these years

(Although Vanmarcke of C50 or burst box of ......)

Many riders when the carbon wheel hanging racks, only in the game, or any other special day was out riding. I do not think a set of wheels ran off the road to fully reflect its value, but I can understand the value drivers of thousands of dollars.

Even if the various manufacturers have low-cost carbon wheel damage after renewal policy, once carbon wheel is damaged, the cost is still a lot of money. Prospects for carbon fiber wheels for daily use how?

Many manufacturers specified weight limit wheel group, but the manufacturers seem to have no control over their wheels should be how to use. ZIPP wheels seem to think that they should only be used in the game, and EKAY also commute daily training is considered a carbon wheel is not a problem. If you are concerned about the durability of carbon wheels especially the brake side. So unfortunately, now there is no definitive research to draw carbon wheel rim brakes in the end when it will be consumed - there are some sporadic to say that the life of a carbon wheel rim brakes will even higher than aluminum wheels! Overall, carbon wheels for everyday use, as long as you overcome the

psychological barriers no problem.

Previous :Why Go Wide Carbon Rims?

Next :The comparison shows of hookless and Clincher carbon fiber bike wheels