Kryptonite
✓Price
$101.99
18mm Bike U Lock, Diyife 10.24''x7.1'' Large Heavy Duty Anti Theft Bicycle U Lock with 5FT Steel Cable, 4-Digit Keyless Combination High Security Lock with Mount for Ebike, Scooter, Motorcycle
★★★★★
$101.99
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About this item
- 【4-Digit Keyless Combination | High Security】Keyless 4-digit combo design with 10000 password combinations for high anti-theft performance, no more trouble of lost or damaged keys. The lock features a super C-grade pure copper core with strong rust and corrosion resistance, and hidden core design for better security. Full solid steel shackle with double locking design, anti-pry, anti-smash and hydraulic shear resistant, upgrade safety for your vehicle.
- 【5FT Steel Cable + Large Locking Space | Flexible Use】Comes with a 5FT (1.5m) high-security steel cable (0.47inch diameter) for comprehensive locking of bike frame, wheels and accessories. The U-lock has a larger locking space than ordinary locks, providing enough installation space for most bike frames, perfectly fit for bicycles, e-scooters and motorcycles in daily use. Features an adjustable bracket for 6.5-inch diameter bike tubes or smaller, ensuring easy carry during rides and reliable bicycle lock security anywhere.
- 【Easy Operation | Convenient Password Reset & Recovery】One-press locking for quick and easy use, suitable for daily commuting. Password reset is simple with 4 easy steps, and a dedicated password recovery key is included for emergency use. The recovery key with double-sided non-groove design ensures zero mutual opening rate, offering more security and convenience in use.
- 【PVC Coating | All-Round Protection】Whole lock body and shackle are wrapped with high-quality PVC material, which effectively prevents scratches on your vehicle's paintwork and protects the lock itself. The PVC coating is waterproof and sandproof, reducing the risk of lock core corrosion and extending service life, with comfortable grip and no freezing hands in cold weather.
- 【Heavy-Duty Build | Multi-Scene Universal Fit】The complete U-lock and steel cable set is heavy-duty constructed with total weight 3.36 lbs, with excellent anti-rust, anti-corrosion and impact resistance for long-term outdoor use. Each set includes a lock mount for easy installation and storage on bike frame, a practical accessory for road cycling, urban commuting and outdoor use, universal for bicycles, e-scooters and motorcycles.
- 【Simple Setup & Operation】 1. Step-by-step password reset: ① Unlock the lock using the default password ‘0000’. ② Push the ‘RESET’ button inwards until the protrusion is fully exposed. ③ Turn the dial to set a new password. ④ Replace the protrusion to complete the setup. 2. Password recovery procedure: ① Insert the key and turn it 90 degrees to the right. ② Rotate the dial upwards until it cannot turn any further. (If you have forgotten the code, retrieve the correct code before performing a reset.)
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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