Trelock U4 230mm U-Lock – Sold Secure Silver

The Trelock U4 230mm D-Lock offers a secure and affordable way to protect your bike or electric scooter. With a 14mm hardened steel shackle and pick-resistant disc cylinder, it’s designed to withstand common theft attempts while remaining easy to carry and use.

Solid Security for Daily Riders

This lock is rated Sold Secure Silver, making it ideal for daily use in medium-risk areas. Its 230mm shackle provides enough reach for locking to standard bike racks or posts, while the vinyl coating helps protect your frame from scratches.

Looking for added security? A version of this lock is available with an additional flex cable — perfect for securing wheels or accessories.

Key Features

• Shackle Size: 230mm length, 14mm thickness

• Material: Hardened performance steel

• Cylinder: Pick and drill-resistant disc-style mechanism

• Includes: 2 stainless steel keys

• Protection: Vinyl covering to prevent frame damage

• Mount: Universal bracket for easy transport

• Security Rating: Sold Secure Silver

• Colour: Black

• Product Type: D-Lock (U-Lock)

• Extras: Trelock key replacement service

✅ See our other listings if you’d prefer this lock with an added cable for more flexible security.