2, the characteristics are different: Duke is an 8-speed transmission, Duke series adopts the structure of finger continuous broadcast, that is, braking and transmission are integrated. Challengers are generally models under 500 challengers, which are basically equipped with Simano M430 split transmission kit, so the upgrade is relatively easy and the choice is relatively large.
3. Different application purposes: Duke is suitable for commuting and challenger is suitable for sports competition.
Extended data:
Precautions for users riding bicycles:
1. Every time you go out to ride a bike, you should repair it and keep it in good condition. Specifically, it depends on whether the brakes and bells are normal and sensitive, whether the seats and faucets are loose, whether the chain is normal, and whether the tires are damaged after use.
2. Prepare necessities, such as helmets, knee pads and other protective devices before departure. If you are riding at night, you should also prepare flashlights and taillights. In addition, try not to use unfamiliar bicycles to avoid accidents when riding.
3. The road with heavy traffic is not suitable for cycling. Due to the great environmental pollution in cities, automobile exhaust and dust do great harm to people. When riding a bicycle, due to the increase of exercise, the harmful gases passively inhaled will spread to the whole body with the strengthening of cardiopulmonary function, and then poison the organs of the whole body. In a short time, people feel uncomfortable and have a dry cough.
4. The road with heavy traffic is not suitable for cycling. Due to the great environmental pollution in cities, automobile exhaust and dust do great harm to people. When riding a bicycle, due to the increase of exercise, the harmful gases passively inhaled will spread to the whole body with the strengthening of cardiopulmonary function, and then poison the organs of the whole body.
Baidu Encyclopedia-Duke of Merida 600
Baidu Encyclopedia-Merida Challenger 300