Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

The company made no mention of any refunds or free replacements. Kryptonite was founded in 1972 and is known as the originator of the U-shaped bicycle lock.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

Kryptonite chain bike locks use a nylon cover to protect the chain. Folding: The folding lock design, such as the Kryptonite Kryptolok Folding Bicycle Lock, folds down to a small size for transport.

While Kryptonite bike locks might cost more than others, they deliver such a high level of performance that they have a good chance of paying for themselves.