Despite not securing the top spot in our angle grinder-resistant lock test, the product in question is now offered at a lower price than the winner, OnGuard RockSolid, during the Amazon Prime Day Sale.
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During Amazon Prime Day, cyclists can find a deal on the Abus Granit Super Extreme 2500, a high-security U-lock designed to resist advanced theft attempts, including battery-powered angle grinder attacks.
Key features and specifications of the Abus Granit Super Extreme 2500 include:
- Material: Constructed using a special composite of Wolfram Carbide, a heavily engineered Tungsten Carbide, which combines tough tungsten steel and carbon composite materials. Tungsten Carbide is the second-hardest known substance after diamonds, providing exceptional cut resistance.
- Security rating: Achieves a Sold Secure Diamond rating, the highest certification available, signifying industry-leading protection against theft attempts.
- Shackle diameter: 27 mm (1.06 inches) square parabolic shackle, hardened for maximum security and resistance to leverage and cutting attacks.
- Dimensions and locking area: Measures 22 cm (8.6 inches) in height by 10 cm (4 inches) in width, offering a usable locking area of approximately 220 cm² (33.5 in²) — large enough to secure thick frames and accommodate larger objects like e-bikes and cargo bikes.
- Weight: Around 2.1 to 2.5 kg (4.6 to 5.5 lbs), balancing robust physical protection with a relatively lightweight design for ease of transport.
- Locking mechanism: Key-operated with a high-security cylinder, resistant to picking and tampering.
- Mounting system: Comes with a versatile on-bike mount/holder (model USH 2500), which secures the lock firmly and reduces rattling while riding. The bracket can be flexibly attached via plastic-coated metal tensioning straps or screws.
- Resistance to angle grinders: Tested in real conditions, the lock withstood a five-minute attack with a high-grade angle grinder, with only partial cutting halfway through the shackle, demonstrating exceptional durability against battery-powered cutting tools.
- Color: Black, with a robust design emphasizing function and toughness.
- Intended use: Ideal for securing expensive bicycles such as e-bikes, cargo bikes, and commuter bikes in high-theft risk areas.
This lock offers a combination of strong physical resistance, ample locking space, and convenient transport options, making it suitable for urban cyclists who need premium protection against sophisticated theft methods.
Summary table of key specs
| Feature | Specification | |-------------------------|--------------------------------------| | Material | Wolfram Carbide composite | | Security rating | Sold Secure Diamond | | Shackle diameter | 27 mm (1.06 in) square | | Locking area | 220 cm² (33.5 in²) usable space | | Weight approx. | 2.1–2.5 kg (4.6–5.5 lbs) | | Lock type | Key-operated | | Mounting system | USH 2500 bracket (plastic-coated metal straps) | | Resistance | High resistance to angle grinders | | Color | Black |
The Abus Granit Super Extreme 2500 is currently available at Amazon for $266.01, a savings of $64. Other deals during Amazon Prime Day include a 33% discount on the Garmin Forerunner 955 Solar, a 55% discount on the DryGuy Force Dry DX shoe drier, and a $150 discount on the Insta360 X4 Standard Bundle.
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