DYU (dyucycle.com) is a globally recognized electric bike brand under Dayu Intelligent Mobility Technology, with over one million smart electric bikes sold across more than 60 countries. Specializing in compact, foldable, and high-performance e-bikes designed for modern urban commuting, DYU offers a wide lineup of models to suit every rider — from lightweight folding bikes for last-mile commuters to powerful fat-tire e-bikes built for off-road adventures.

The DYU lineup covers every riding style and need. The D3F and T1 folding e-bikes are the brand's most popular commuter models, featuring 14-inch wheels, 250–350W motors, and ranges of up to 31–45 miles — compact enough to carry onto public transit or fold into a car trunk in seconds. For longer daily rides, the C5 Lite and C9 step up with 26–20 inch wheels, Shimano multi-speed gear systems, and ranges of up to 93 miles on a single charge. The C7 Lite mountain e-bike adds front suspension and a 500W motor for trail riding and hillier commutes. On the performance end, the M20 Lite delivers a 1500W peak motor, dual hydraulic disc brakes, and a range of up to 100 miles, making it one of the most capable electric mopeds in the lineup. All models are designed for easy 10–20 minute assembly with no tools experience required, and step-by-step assembly videos are available on DYU's official YouTube channel.

DYU ships via FedEx, UPS, or DPD with orders processed within 48 hours and delivery in 2–7 business days. A 30-day return policy applies to all purchases, and the bike frame is covered by a one-year replacement warranty, with the battery covered under a one-year prorated warranty. Coupon codes are accepted at checkout with regular sitewide discounts of up to 10% off, targeted model-specific deals, and a dedicated clearance section offering 20–40% off open-box and refurbished models that are fully tested and warranty-covered. New customers can also sign up for the newsletter to receive exclusive promotional codes.