MTB Stem 31.8 for Road Bike, MTB, and BMX

EVOSID has 11 years of experience in creating high-quality bicycle accessories. Our founders were passionate riders, and our team includes cycling experts from the United States and Taiwan. The accessories we design are tailored for riders who cycle all year round.

We are committed to producing and designing high-quality products while maximizing performance. You have been blessed with a strong physique to ride further on the bumpy roads in the future.

Our product range includes:

Bicycle Stem Bicycle Accessories Bike Crankset Bike Chainring Road Bike Fork Bicycle Brake Accessories Bicycle Accessories Carbon Fiber Bike Seatpost

The carbon fiber seatpost is crafted with high-quality T1000 carbon fiber, weighing only 140g (27.2mm) or 147g (31.6mm).

The high-strength aluminum alloy stem features a 0° hollow short design. Made from high-quality 6061 aluminum alloy, it offers a responsive and well-controlled ride, suitable for demanding riding conditions. The CNC-cut stem is surface-treated with an anodizing process, making it lightweight and durable.

The use of German-imported 6061 T6 aviation-grade aluminum alloy ensures exceptional strength and performance, catering to XC, AM, and other professional competitive scenarios. Manufactured using Japanese CNC machines and German tools, the EVOSID stem is crafted with ultra-high precision. The two-color gradient anodized finish creates a low-key yet distinctive appearance, reflecting the rider's unique style.

The fine craftsmanship and outstanding quality of the EVOSID stem make it a work of art. The M5 stainless steel screws and aviation-grade aluminum construction ensure durability and perfect control.

The EVOSID stem is suitable for most handlebars and front forks, allowing for easy installation.

Brand: EVOSID Material: 6061 T6 aluminum alloy Weight: Approximately 138g Style: XC/AM Colors: Black, Red, Black Blue, Titanium Length: 40mm Height: 40mm Handlebar: 31.8mm Fork: 28.6mm Technology: CNC

【SIZE & COMPATIBILITY】: The EVOSID MTB stem is a universal fit, making it easy to install. It is compatible with a handlebar diameter of 31.6mm, a front fork diameter of 28.6mm, and uses M5 screws, weighing 139g.

【Suitable】: The short stem is more conducive to bike control, providing more flexible steering and greater stability at high speeds, making it ideal for downhill and off-road use.

【DESIGN】: Crafted from aviation-grade high-strength aluminum alloy, the stem features an electroplated oxidation treatment, ensuring rust and corrosion resistance, as well as a long-lasting, vibrant color. The ultra-lightweight hollow design maintains strength while reducing weight through extensive CNC machining.

【DIVERSITY】: Available in 5 different colors - black, blue, red, grey, and colorful - allowing you to choose the most suitable option for your bike.

【Service and After-sales】: Our company is committed to designing and developing more comfortable bicycle seats. We provide a 90-day warranty for the carbon fiber bike seat. If you have any questions, please feel free to contact us, and we will provide you with satisfactory solutions.

product information: