Usually ready in 2-4 days
Maximum Security. Total Peace of Mind.
Protect your electric bike with the ultimate two-layer security system from Mason James Accessories. This premium combo pairs a heavy-duty U-lock with cable and frame mount plus a powerful motion-sensor disc lock alarm—giving you both physical strength and smart deterrence in one package.
🔒 Hardened Steel U-Lock
Heavy-gauge, cut-resistant design
Weatherproof construction
Includes a 4-ft steel cable for securing wheels, frames, or accessories
Comes with a universal frame mount for easy carrying on any e-bike
📢 Motion-Sensor Disc Alarm Lock
110dB alarm triggers instantly when movement or tampering is detected
Smart motion sensor reduces false alarms
Perfect for locking your rotor or frame when parked at home or on the go
Rust-resistant, long-lasting build
Two layers of protection = far less chance of theft
Lightweight enough for daily use but strong enough for long-term parking
Ideal for commuters, e-bike owners, and high-value ebikes like Aventon, Velotric, Heybike, and more
Trusted by Epic Ebike Adventures for rental fleet security
Whether you’re locking up on Fremont Street, hitting the trails, or parking at work, this combo gives you the strength of a U-lock and the deterrence of an alarm system—all from a brand built by riders, for riders.
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