Alongside the debut of the new Exciter 155 VVA, Yamaha has also introduced updates for the Sirius scooter. The 2021 Sirius FI sees significant changes in both design and engine, especially in the affordable drum brake variant.
So, what's the price of the 2021 Sirius FI with drum brakes, and does 'cheap' necessarily mean 'poor quality'? Let's delve in for answers.
1. Detailed Review of the 2021 Sirius FI Drum Brake Variant
To determine whether the 2021 Sirius FI with drum brakes is worth your investment, let's examine its features and performance.
1.1 Youthful and Sporty Design
The 2021 Sirius FI Drum Brake model maintains its compact and sporty design. With dimensions of 1,940 mm × 715 mm × 1,090 mm and a seat height of 775mm, it's well-suited for Vietnamese riders. Weighing just 99kg, even women can handle it effortlessly.
Featuring a redesigned headlight cluster with turn signals moved to the front fender, the headlight remains positioned at the front for agile handling and consistent illumination.
Improvements in convenience include a spacious 9.2-liter under-seat storage, ample for a half-face helmet and essentials. The expanded footboard provides comfort and better weather protection.
With a choice of 4 different colors, the 2021 Sirius FI Drum Brake offers users more variety, catering to different preferences and aligning with personal styles.

1.2 Powerful and Fuel-Efficient Engine
Yamaha's commuter scooter is now equipped with a 113.7cc engine, still SOHC, air-cooled, but noticeably more powerful. Specifically, it produces a maximum power of 8.7 horsepower at 7000 rpm and a maximum torque of 9.5 Nm at 5500 rpm.
Compared to its predecessor, the 2021 Sirius engine delivers better performance, achieving peak power at lower rpm. This demonstrates the manufacturer's efforts to enhance acceleration and improve engine strength, catering well to the habits and operating conditions of Vietnamese riders.
The 2021 Sirius FI Drum Brake model retains its 4-speed rotary gearbox, providing flexibility for riders on various road conditions.
Of course, the engine still ensures fuel efficiency, making it one of the most fuel-efficient scooters on the market today.
1.3 Adequate Features
The scooter still rides on 17-inch spoked wheels, offering stability both on off-road terrain and city streets. However, it's equipped with drum brakes front and rear. Despite this, due to their stability and ease of maintenance, they remain popular among many riders.
The 2021 Sirius FI Drum Brake model utilizes front telescopic forks with oil damping and dual spring-loaded rear shocks, absorbing shocks and reducing jolts while traveling, especially on uneven roads.
2. How much does the 2021 Yamaha Sirius FI Drum Brake motorcycle cost?
Yamaha has priced the 2021 Sirius Drum Brake variant at 18 million VND - the lowest price among Yamaha motorcycles in the Vietnamese market, and also among the cheapest motorcycles currently available.
At dealerships, the 2021 Sirius FI with drum brakes continues to offer a competitive price, accompanied by various promotional offers and discounts. Therefore, if you're in need of an affordable, fuel-efficient, and reliable commuter motorcycle, the Sirius Drum Brake model is undoubtedly one of the best options for you.