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.

What’s Included

🔒 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

Why Riders Love It

• 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

Ride With Confidence

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.