Questions about road bikes

"Premium aluminum is superior to low-grade carbon", for example, Jet's ALUXX SLR aluminum frame technology, Trek's Alpha Platinum aluminum frame technology, a frame someone wants to spend thousands are very difficult to buy (not retail), 1300 grams of weight and low-end carbon frames (Jet's XTC C carbon frame priced at $ 2.5K is representative of) is quite comparable The weight of 1300 grams is comparable to low-end carbon frames (Jetta XTC C frame is one of the representatives), but the difficulty of the equipment and process, the rigidity of pedaling, and the lifespan are all higher than low-end carbon frames. Carbon frame, simply put is carbon cloth + glue, low-end carbon is lower than the T700 level of domestic carbon cloth or even add fiberglass and other carbon synthetic material (although some industry insiders say that no one has done so now that the technology has advanced, but out of the temptation of money there are still some to do room in the addition of materials should not be used in order to further reduce the cost of pursuing a higher profit, the so-called "in order to make money (There is no bottom line), as for the synthetic glue is what grade on God knows, Huizhou, Dongguan, Xiamen and other places of small carbon do room even useful "brother and sister" that kind of glue bonding carbon cloth, so there are some people spit out "I'm this labeled carbon handle to cross the speed bumps to be broken So some people complained that "my unmarked carbon handlebar is going to break when I cross the speed bumps, so I'm changing it" (similar problem with the house carbon seatpost). Side of the same level of force is hit, when the high-end aluminum frame concave a piece (affecting the appearance but does not affect the strength and use), low-end carbon is certainly not usable (some appearances seem to be just bumping off the slag, but the actual internal cracks), even if MBC, LOOK, etc., the price of 3-4W of high-end carbon frames, sideways to be hit by the cracks are likely to crack (cracks will be with the ride of the force to continue to expand). Cannondale's caad12 is tripod aluminum and is still used by PROs at the big 3 tours. For specifics you go to Knowles a lot of v-listers talking about this topic 。。。。 In addition there is a non-mold industry people do not know the fact: the production of carbon fiber and the finished product molding process, is a very heavy pollution process, "you do not wear a professional protective mask in the workshop a few years can get lung disease or even cancer" - this is my internship period master This is what my master told me during my internship (I used to study mold design and went to Kunshan, Chengdu, Tianjin, Jiante factory and Texas Merida, etc.). Especially the epoxy glue needed for bonding carbon cloth, in addition to being highly toxic and damaging to the skin and air, manufacturing carbon cloth and bonding carbon cloth, mold molding, phi sanding after leaving the mold, and filling the mold for repair, all produce a lot of toxic powder. Spray paint is also a heavy polluter. Factories like Jet's have international environmental management system certifications and huge amounts of money spent on filtration equipment and imported environmentally friendly raw materials, so they pollute the environment less, but small and medium-sized factories all over Xiamen, Dongguan, Huizhou, and even Jinhua, Tianjin, etc. basically don't have any measures to protect the environment. Therefore, I would rather ride a bike with an aluminum frame than buy a cheap domestic carbon bike.