Customer Service (503) 832-7336
The Only Place For People Who Ride


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Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
The Sidi X Power Enduro Arm BK Size 40 is a high-performance bike frame component designed to enhance your riding experience. Crafted with precision in Romania, this model offers excellent durability and reliability for enduro and mountain biking enthusiasts. Its robust construction ensures it can withstand challenging terrain while maintaining lightweight performance. The X Power Enduro Arm features a sleek black finish that complements a variety of bike styles and setups.
Constructed from high-quality materials, the Sidi X Power Enduro Arm BK provides optimal strength without excessive weight. Its dimensions are engineered for a perfect fit, offering stability and control during aggressive rides. Whether you're tackling technical trails or high-speed descents, this component delivers consistent performance. The part number 2470004540 guarantees authenticity and compatibility within your bike setup.
Designed for easy installation and long-term use, the Sidi X Power Enduro Arm BK is an essential upgrade for serious riders seeking durability and precision. Trust in the craftsmanship and innovative design from Sidi to elevate your mountain biking adventures.
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