Bike Stem 31.8mm for Mountain Bike, Road Bike, and BMX

EVOSID, a brand with 11 years of experience in crafting high-quality bike accessories, was founded by cycling enthusiasts. The team comprises experts from the United States and Taiwan, dedicated to creating accessories that cater to the needs of year-round riders.

The company is committed to producing and designing high-quality products while maximizing performance. With the strong physique bestowed by the heavens, riders can now conquer even the bumpiest roads with confidence.

EVOSID offers a wide range of bicycle accessories, including:

Bicycle Stem: Crafted from high-strength T1000 carbon fiber, this lightweight seatpost weighs only 140g (27.2mm) or 147g (31.6mm).

Bicycle Accessories: EVOSID's accessories, made with aviation-grade 6061 T6 aluminum alloy, are designed for XC, AM, and other professional competitive scenes. Featuring Japanese-imported CNC machines and German-imported tools, these accessories ensure ultra-high precision. The two-color gradient anodization process creates a low-key yet striking appearance, highlighting the rider's unique style.

Bike Crankset: The use of Germany-imported 6061 T6 processing aviation-grade aluminum alloy ensures strength and exceptional performance, making these cranksets suitable for XC, AM, and other professional competitive settings.

Bike Chainring: Crafted with fine workmanship and outstanding quality, these chainrings are a work of art, featuring stainless steel M5 screws and durable aviation-grade aluminum.

Road Bike Fork: Designed for perfect control, these forks are suitable for most handlebars and front forks, ensuring a secure and confident ride.

Bicycle Brake Accessories: EVOSID's brake accessories, made from high-quality materials, offer reliable performance and a sleek, modern aesthetic.

Bicycle Accessories: EVOSID's diverse range of bicycle accessories caters to the needs of riders, with a selection of colors and designs to choose from.

Carbon Fiber Bike Seatpost: Crafted with high-quality T1000 carbon fiber, this lightweight seatpost weighs only 140g (27.2mm) or 147g (31.6mm).

EVOSID is committed to providing exceptional quality and innovative design in its bicycle accessories. The company stands behind its products, offering a 90-day warranty and dedicated customer service to ensure a satisfactory experience for all riders.

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