Trelock Bicycle U-lock U5 Mini ZB 401 (83x140 mm), Black

The Trelock U5 Mini 83-148 is a compact U-lock designed for riders who want serious protection without carrying unnecessary bulk. Its smaller inner dimensions reduce leverage opportunities for thieves, making it a smart choice for urban environments.

The 15 mm hardened steel shackle forms a strong defensive barrier, while the cylinder is protected against drilling for enhanced resistance. A sliding dust cover shields the locking mechanism from dirt and moisture, helping maintain smooth operation over time.

The lock features a protective rubber coating to prevent scratches on your bike frame during daily use. With a security rating of 15/18 in the Trelock scale, the U5 Mini offers a high level of protection for city riding and regular parking situations.

A practical ZB 401 frame mount is included, allowing convenient transport directly on your bike. The set comes with keys, and additional keys can be ordered via the official Trelock website if needed.

Compact in size but uncompromising in build quality, the U5 Mini strikes the right balance between portability and dependable security.

Technical specification

• Product type: U-lock

• Brand: Trelock

• Model: U5 Mini 83-148

• Internal dimensions: 83 x 140 mm

• Shackle diameter: 15 mm

• Material: Hardened steel

• Cylinder protection: Drill-resistant

• Security level: 15/18 (Trelock security scale)

• Lock mechanism protection: Sliding dust cover

• Frame protection: Rubber coating to prevent scratches

• Mount included: ZB 401 bracket

• Keys included: Yes

• Additional key option: Yes, via Trelock website

• Colour: Black

• Weight: 900 g

• Intended use: Daily urban bike security, locking to racks, poles, and fixed infrastructure

Shipping:
We ship within Poland, across the entire European Union, and worldwide