Firefox Bikes offer several budget-friendly men's bikes under 50k, including the Tornado 27.5 D, Stravaro 29 D, and Nuke 27.5 D, each with their own unique selling points. The Tornado 27.5 D boasts 24-speed gears, providing a versatile and efficient option for tackling a wide range of terrain with greater control and comfort. The Stravaro 29 D features 18-speed gears, making it another versatile and efficient option for cyclists of all levels. Lastly, the Nuke 27.5 D comes with 27 speed gears, perfect for both hitting the streets with your squad and challenging mountains for a duel. All three bikes offer features such as disc brakes, suspension forks, and multiple gears, making them ideal for commuting and light off-road use. The prices for these models range from around 23k to 40k, depending on the specific features and components.