Trelock U4 Mini Lock - Black - Sold Secure Bronze

Sold Secure Bronze is a security rating indicating a good level of resistance against common tools and opportunistic theft. It is suitable for lower-risk areas or for use in conjunction with another lock.

You will typically need to register your lock and key number upon purchase. In case of loss, contact Trelock customer support with your registered details to arrange for replacement keys.

The 152mm shackle length is designed to lock the frame to a stationary object. Whether it can also capture a wheel depends on the bike's wheel size and frame design.

While robust, the Sold Secure Bronze rating suggests it is best suited for lower-risk environments or for use as a secondary lock. For high-crime areas, a lock with a higher security rating (e.g., Gold or Diamond) is generally recommended.

The lock is designed to be lightweight for easy transport. Specific weight details can be found in the product specifications, but it's considerably lighter than larger, high-security U-locks.

The universal mounting bracket is designed to fit most standard bike frames. Compatibility may vary depending on the frame's tube shape and diameter, and the presence of mounting points.

Use a dry lubricant specifically designed for locks, such as graphite spray, to lubricate the cylinder. Ensure no debris is obstructing the keyhole.

Check that the correct key is being used and that it is fully inserted. Ensure the shackle is fully closed and aligned. Try wiggling the key gently.

Re-tighten the screws securing the bracket to the frame. If using frame bolts, ensure they are appropriate for your bike's threading and tightness.

While the coating can be repaired, if significant damage occurs, it may compromise its protective function. Avoid harsh cleaning agents. If minor damage occurs, consider using clear protective tape as a temporary measure.