The difference between different grades of carbon fiber bike wheels-Ekay Original article

2016-04-26

　The first is the material: the general low-end cars will use steel as a material vehicle, the disadvantage is the weight of large, rust. The advantage is that even low-end goods, the strength is also okay.
Luxury cars generally use aluminum or carbon fiber, but also useful scandium (rarely). Advantages of aluminum and carbon fiber is lightweight, does not rust, and is easy to shape. The aluminum and carbon fiber are also divided into grades. Mainly due to the strength of the welding process, the thickness of pipe smoke / carbon fabric layers, and so on. A very simple example, my car was stolen main frame is expensive, because the older BMC soft tail frame with a ESTON patented aluminum. The new BMC frames due to the expiration of patents, only instead of ordinary high-strength aluminum, so the price but also much lower.

The second is a shock: bicycle shock absorber car shock absorbers with basically the same principle, in general, there are two: pressure shock absorbers and springs shock absorbers. Pressure shock absorbers advantage rebound adjustable intensity, light weight. The disadvantage is that complex structure, not easy to maintain and repair the spring in terms of "more" compared squeamish. Pressure shock absorbers can be divided into different grades, the main difference is the weight, stroke, strength, degree of support, lubrication, damping, rebound linear and so on. Wherein the stroke, damping, linear and strength is the key. Generally the longer the trip, the more expensive price. Damping adjustable number of segments, the more expensive price. Fox fork compression speed is also adjustable version (RLC, ie Rebound, Lock, Compress, rebound, lockout, compression are adjustable). Note, however, require significant stroke with the frame type matching, general XC-level car, the front fork stroke 80mm ~ 120mm, AM fork stroke 140mm ~ 160mm,

FR and DH can be considered more than 160mm stroke.
Good shock absorbers can filter size good vibrations, while avoiding happens when we encounter a major brake vibration and instability. The low-end shock absorbers or shock effect is almost zero, either linear good, easy bottoming rebound is too slow or too fast, you can adjust the range and little or none.

Third shift: Usually low-end transmission materials are steel, plastic DIP and the like, and precision, low intensity, high weight. Most high-end transmission is generally a small part of the steel + aluminum, aluminum alloy dip, and many require a higher strength components are used CNC machining technology, precision, strength and weight can do very well. For example XT above the level of the hollow crank CNC, CNC dental plate, CNC dip, and SRAM XX of CNC flywheel (This stock is really great). Another transmission system is more valuable part of the rear derailleur. Like Shimano XT rear derailleur level and above, even with the one-way bearing damping to keep the chain stability. Some rear derailleur with carbon legs to increase the strength. There is also an easy place to overlook is the shift line and line pipe. Normal transmission lines and line pipe lubrication is poor, do not use them smooth. High-end transmission lines and line pipe (such as XTR) is coated with Teflon material, feel very light, very simply, is more conducive to accurate transmission.

Fourth brakes: brake lines are divided into pull-up / pull-wire and brake hydraulic V / hydraulic disc brakes. V brake low cost, higher reliability, ease of maintenance, but very easy to lock, easy water failure, prolonged braking when the brake is not pull V. Disc is not perfect. The first is the line pull disc brakes poor linearity, but eased V easy locking brake problems, while relatively light weight of only a little. Good hydraulic disc brakes and light weight, good linearity, clip / piston forceful, thermal decay is very small (DOT mainly rely on high-quality oil, or mineral oil, another oil dish similar XTR still like to make on-chip plus cooling device). Disc brake disc is also very important. The first is the need for light, while maintaining high strength, not easily broken or yaw, the other requires good ventilation, heat dissipation. Relatively well-known high-quality discs is Shimano disc sandwiches and Hope floating disc.

Fifth, it is the most expensive part inside the vehicle: the frame. The quality of the frame with the use of materials, design, function has a great relationship. Soft tail frame is divided into two kinds and Ying Jia. Usually soft tail is more suitable for high-intensity cycling, and Ying Jia usually stop at the XC level. Soft tail with rear shock (there are a few hundred dollars of domestic mountain bike rear shock, but beyond the scope of the goods), rear shock prices tend to fork over, mainly because of good shock absorbers are usually two chamber design, to avoid bottoming, and the second chamber which is filled with an inert gas. In addition, the rear shock more emphasis on linear and rebound. Frame welding process is also very important, directly determines the strength of the vehicle.

Sixth, wheels: wheels into wheels, spokes, hubs, tires and tubes. There are generally two kinds of types of hubs: Bearings and ball bearings. Perlin can achieve good strength and lubrication in low-cost situations, but for higher precision, the composition of the present Peilin wheel will increase significantly. Ball bearing structure is more complex, maintenance inconvenient, costly high-intensity need to be guaranteed. Spoke appears to be the most worthless, but actually a lot of tricks: ordinary steel spokes with adjustable spokes (spokes on a different thickness at different locations), hollow aluminum spokes, carbon fiber spokes and so on. And even the most common steel spokes, DT (brand) have a 2 yuan, a lot more expensive than the domestic brand-name 0.5 million. The main difference lies in the strength of the rim, as well as adaptable tires and tubes: high-end wheel rim can be compatible with tubeless. Tires and tubes are relatively less complex, but the price gap is still not small. The main difference is durability, grip and weight and so on.

Finally, the group, seat tube, sitting bags, bottle cage like accessories. The group stressed that the main strength and weight, seat tube similar to the group, but there are brands like Fox pneumatic lift seat tube, in the mountains when riding very convenient. Sit pack a lot of tricks, substrate material has, from the plastic rail is also divided into stainless steel to carbon fiber, titanium and manganese are several, the price difference is not small.



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First published and source: http: //www.carbonwheelfactory.com/
Author: Cary Sun

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