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🎁 Buy 2+ Bike Bags, Get 15% Off Each
Shipping Fees:
We provide clear and detailed shipping fees based on the order amount and shipping method:
- Standard Shipping:
- Order Amount Below $29: Shipping Fee - $4.99
- Delivery Time: 3-4 business days
- Free Shipping:
- Order Amount $29 and over: Free 📦
Shipping Info
- US Warehouse In-stock: 3–4 business days
- 🌍International Shipping (if US out of stock): 7–10 business days
- 🚲Bicycles: 20–25 business days
Please note that we do not charge any additional taxes.
We offer a 30-day hassle-free return and exchange policy starting from the date you receive your item. To be eligible, products must be unworn, unused, with tags attached, in original packaging, and accompanied by proof of purchase. If the item is defective, damaged, or incorrect, we cover the return shipping cost; for size or personal preference returns, the customer is responsible for shipping fees. Please inspect your order within 72 hours and contact us for any issues. EU customers have a 14-day no-questions-asked return right. Refunds will be processed within 10 business days after we receive and inspect your return. Please contact customer service before returning items and send returns to the designated address; unauthorized returns will not be accepted. For questions, email service@rockbrosbike.us.
At ROCKBROS, we offer a worry-free 1-year warranty to ensure your satisfaction. Whether it's a defect or product issue, simply reach out to us at service@rockbrosbike.us with your order details. We'll handle the rest to make sure your experience is smooth and hassle-free.

Product Highlights
FEATURES
Product Description
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Lightweight & High Strength: Made from carbon fiber material, this crankset offers an excellent balance between weight and rigidity, enhancing your cycling performance with reduced weight and increased strength.
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Innovative Design: The one-piece forming process ensures durability and performance, while the hollow construction further improves overall efficiency, making your rides smoother and more enjoyable.
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Corrosion Resistant & Durable: The carbon fiber material not only provides high strength but also resists rust and corrosion, ensuring long-term use without deformation.
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Enhanced Compatibility: The 28.99mm aluminum alloy axle is designed with drilled splines to reduce weight and offers greater compatibility with various bike frames, allowing for easy upgrades.
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Adjustable & Stable: Equipped with a built-in adjustment function and pre-pressed lock ring, the crankset provides easy installation and stable performance, ensuring no slippage during vigorous sprints.