What are the differences between the 2020 and 2021 Challenger 300 models?

1 Answers
VanHayden
07/29/25 1:47pm
Here are the relevant introductions about the differences between the 2020 and 2021 Challenger 300 models: 1. Different configurations: Mainly the drivetrain components. The 2020 Challenger 300 uses SHIMANO-M610 for both front and rear derailleurs. The 2021 Challenger uses SHIMANO M618 for the front derailleur and SHIMANO M670 for the rear derailleur, which are higher-end than those on the 2020 Challenger 300. 2. Different target users: The 2020 Challenger 300 is suitable for beginners, mountain biking, and light off-road use, with some potential for future upgrades. The 2021 Challenger is more suitable for those who want to modify and upgrade, replacing the wheelset, fork, and drivetrain components with mid-to-high-end parts.
Was this review help?
8
1
Share
More Forum Discussions

Can Rain Enter Through a Slightly Opened Sunroof?

Rain will not seep in when the sunroof is slightly opened. When the sunroof is tilted upwards, it creates a negative pressure state, preventing rainwater from entering the vehicle. Here are some details about car sunroofs: 1. Functions: In summer, when the weather is hot, parking under the sun can cause the interior temperature to rise significantly. The best way to cool down is by opening the windows for ventilation to allow air circulation. In winter, the interior often fogs up, and opening the sunroof can effectively address this issue. 2. Drawbacks: Driving with the sunroof open on the highway can generate noise due to the high speed.
13
5
Share

What engine is in the Bestune T77?

Bestune T77 is currently equipped with a 1.2T turbocharged direct-injection engine across all models. Below are the detailed introductions about the Bestune T77: 1. The Bestune T77 engine is paired with a 7-speed DCT wet dual-clutch transmission, balancing high power and fuel efficiency, achieving an all-terrain driving experience with the golden powertrain. 2. The Bestune T77 adopts the "Light and Shadow Geometry" design concept overall. In detail, the front face features a hexagonal concave large-mouth grille with starry dot-matrix chrome trim blocks and a low-profile hood. 3. The biggest highlight of the Bestune T77 is its intelligence. As the first model of the new Bestune IoT 1.0 era, the Bestune T77's in-car voice assistant, with 3D holographic imaging + AI technology, for the first time beyond smartphones, achieves interconnection and mutual control with hundreds of smart appliances, making it the world's first 3D holographic intelligent control SUV.
2
2
Share

How to schedule an appointment after one year of holding a B2 driver's license?

After completing one year of the probationary period for a B2 driver's license, you need to apply for an educational examination, which primarily tests knowledge of road traffic safety laws and regulations, as well as civilized driving practices. The vehicle management office will notify the driver to participate in the educational examination within thirty days. The driver must submit an application in advance to request the educational examination. Holders of A1, A2, A3, B1, and B2 driving licenses must also take the probationary period completion examination within thirty days after the probationary period ends. After completing the examination, drivers are required to undergo at least half an hour of case-based warning education on traffic accidents. Even with a perfect score, the examination is mandatory.
17
3
Share

How Often Should the Battery of an Electric Scooter Be Replaced?

Electric scooter batteries generally need to be replaced every two to three years. Here are some details about electric scooter batteries: 1. Precautions: The choice of charger is crucial. The charger used with the vehicle should match the battery pack and meet the requirements specified in the charger parameter table in the manual. Otherwise, it may damage the battery's performance. 2. Charging Time: During the use of the electric scooter, it is important to accurately determine the charging time based on actual conditions. It is best to charge the battery when about 80% of its power has been used. If the battery is completely drained, the power should be turned off. Do not rely on the 'recovery voltage' of the battery to force the scooter to run, as this may shorten the battery's lifespan due to over-discharge.
11
3
Share

What oil should be used for the first maintenance of Changan CS75?

When performing maintenance on the Changan CS75, replace it with Changan's original SL-grade 5W-30 engine oil. Below is a detailed introduction to the maintenance content for the Changan CS75: 1. Replace the fuel filter and air filter. Check the clutch stroke, the clearance and fixation of the steering lower arm ball joint, and the dust cover. 2. Check the tread depth, tire pressure, and wear condition of the tires, and perform a four-wheel alignment if necessary. Check whether the throttle and idle valve are too dirty, and clean them if necessary. 3. Check the condition of the spark plugs and replace them if necessary. Perform a no-disassembly cleaning of the fuel injectors. Check the condition of the power steering, braking system, and automatic transmission. 4. Test whether the braking force, gear shifting, and steering are normal. Lubricate all relevant parts of the vehicle.
7
3
Share

How Many Degrees Do the Wheels Turn When the Steering Wheel Is Rotated Half a Turn?

Turning the steering wheel half a rotation results in the wheels turning approximately 32 degrees. Typically, rotating the steering wheel from the center to one side covers 540-630 degrees, corresponding to a wheel turn of about 40-42 degrees. This means that for every 13-16 degrees of steering wheel rotation, the wheels turn by 1 degree. Relevant information about the car steering wheel includes: 1. Function: It converts the force applied by the driver on the steering wheel's edge into torque, which is then transmitted to the steering shaft. 2. Correct Grip: If the steering wheel is viewed as a clock face, the correct hand positions are left hand between 9 and 10 o'clock and right hand between 3 and 4 o'clock. In the event of a collision, this posture provides better support for the body.
16
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.