Diamond-Rated Security for High-Risk Areas
The Master Lock U-Lock 10x21cm carries a Sold Secure Diamond rating, the highest level of independent security certification. We recommend it for East London cyclists who need maximum protection against angle grinders and bolt cutters.
Why We Chose This for Our Customers:
- Sold Secure Diamond: The highest independent security rating, tested against sophisticated attack tools.
- 14mm Hardened Steel Shackle: Double-locking 14mm shackle resists cutting, levering and twisting attacks.
- Compact 10x21cm Size: Large enough to lock frame and wheel yet compact enough to carry in a bag.
- Anti-Pick Cylinder: High-security lock barrel resists picking and drilling attempts.
✅ Join 700+ cyclists who rated us 5 stars.
🏆 Independent Bike Dealer of the Year 2025
🚚 Fast UK-wide Shipping
📍 Free Click & Collect: East London (E3 3XS)
⚠️ Planning to collect this item? Please contact us before visiting to confirm availability and arrange a convenient time. Stock varies and we want to make sure your order is ready for you.
