Gray supreme bicycle chain lock with keys

The S5CXL Supreme offers a flexible security solution for riders who need to reach around larger anchors. Featuring a 4 foot total length, this chain lock provides ample reach for securing both the frame and a wheel to a fixed post. The gray fabric sleeve protects the internal links from the elements while preventing metal-on-metal contact with your bike.

At the core of this lock are 4mm steel links designed to deter opportunistic theft. The keyed locking mechanism is straightforward and reliable, providing a physical engagement that many cyclists prefer over combination dials. Its flexibility allows it to be coiled tightly for transport, making it a versatile choice for various bicycle types and storage setups.

This chain is particularly well-suited for secondary security or for use in lower-risk areas where portability is key. The gray colorway offers a neutral look that stays clean over time. Because of its length, it is also effective for securing multiple bikes together or for use with non-standard outdoor furniture and equipment.