
Cannonlle USA600 Racing Bike
The Cannonlle USA600 Racing Bike is a famous affordable racing bike line from the USA, suitable for beginners and those with low incomes.
This bike is designed with a super lightweight aluminum alloy frame to save energy while still being able to ride at high speeds. Additionally, the 12-speed transmission and winzip mechanical brakes allow users to comfortably experience city streets or smooth asphalt roads more safely.
Twitter TW3000 Sports Bike

This is a sports bike line from the premium German brand Twitter, with mid-range specs and surprisingly low prices. The bike is an excellent choice in the segment of sports bikes priced at 4 million for budget-conscious individuals such as students, pupils, or new bike riders.
The Twitter TW3000 exudes a strong sports style with a unique color scheme, being the choice of many young people, especially those new to MTB. The sturdy aluminum alloy frame is suitable for complex terrains or technical obstacles.
The handlebar and stem of the bike are equipped with powder coating technology with high scratch resistance, so you can confidently participate in sports activities or overcome obstacles.
The drivetrain with PROWHEEL 42-34-24T premium aluminum alloy crankset combined with PYC-7 chain, SHIMANO EF51 21-speed shifters, MICROSHIFT M20 front derailleur, SHIMANO TX50 rear derailleur contribute to smooth and precise shifting. Sport mechanical brakes ensure safety in all situations on dangerous trails such as slippery rocks or muddy roads.
Trinx M136 Men's Sports Bike

Trinx M136 is chosen by many because at this price it's hard to find a bike with such good specs. The bike can be used for commuting, going to school, or exercising, suitable for various sports activities.
The distinctive MTB frame design made from premium 6061 aluminum alloy brings powerful, decisive, and solid movement. The bike's suspension fork with adjustable lockout helps riders customize on all terrains.
The handlebar system is made of aluminum alloy and painted with electrostatic powder coating with excellent scratch resistance. The drivetrain consists of Kmc C50-7S chain Shimano MF-TZ21 14-28T-7S freewheel combined with 21-speed SHIMANO EF65 shifters, Shimano FD-TZ30 front derailleur, Shimano RD-TZ50 rear derailleur work together flexibly to provide smooth and accurate shifting, promising to bring you great experiences on trails or city roads.
Moreover, the sport mechanical brakes and double-layered aluminum alloy rims meeting European standards are also a plus point that makes Trinx M136 highly rated.
So, surely you have answered the question of which bike to buy for 4 million. Hopefully, the suggestions above will help you find the most satisfactory product.