Security only works when it fits the situation.

The Problem

A good U-lock can still become dead weight.

U-locks work well when the rack, frame, wheel, and locking position all line up properly. In the real world, that is not always what riders find.

Racks can be oversized, badly positioned, crowded, or too far from the frame. Posts and other secure objects may not fit inside a compact lock at all.

When that happens, many riders fall back on a cable for the flexible part of the setup and use the U-lock mainly to close the loop. The cable then becomes the weakest part of the system.

The First Build

The Division began as a personal solution.

I wanted a single locking system that could wrap around a secure object, pass through the rear triangle, and continue forward through the front wheel.

Hardened security-chain and lock combinations already existed, but the complete systems I found were expensive. I built my own for much less and realized the market had room for a straightforward, lower-margin alternative.

The first version was three feet long. It worked well for a small child’s bike and tight rear-triangle locking, but it did not provide enough reach for the broader range of locking situations I wanted to solve.

Why Five Feet

A practical balance of reach, weight, and portability.

The Division launches at five feet because that length covers the majority of everyday locking situations without becoming unnecessarily heavy or cumbersome.

It provides substantially more routing flexibility than a compact U-lock or short chain. In many common setups, it can reach around a secure object, through the rear triangle, and through the front wheel in one continuous path.

Five feet is not a universal fit. Larger frames, cargo bikes, unusual anchors, and certain parking layouts may require more reach. Some riders may prefer a shorter and lighter option.

It is the general-purpose starting point: the option intended to solve the largest share of everyday locking problems.

Modular by Design

The chain and padlock remain separate.

The Division is not built around a permanently attached lock body. Riders can use a compatible padlock they already own or choose the chain-and-padlock configuration.

That makes it easier to replace or upgrade one component without replacing the entire system.

Keeping the lock separate also lets riders choose the padlock that fits their budget, security needs, and carrying preferences.

Hand Assembled

Finished and inspected in East Portland.

East Portland Chains does not manufacture the raw steel or textile materials. The components are sourced and assembled locally into the finished product.

Each Division is measured, sleeved, finished, and inspected by hand. The Cordura sleeve helps protect the bicycle and improve handling, while heat-shrink material helps keep the sleeve secured at the ends.

Small-batch assembly makes it possible to inspect every finished chain individually and communicate directly with the people who use it.

Why the Price Is Lower

A straightforward product with a restrained margin.

The Division exists partly because comparable hardened-chain systems often cost much more than expected.

East Portland Chains keeps the product simple: quality chain, a protective sleeve, careful assembly, clear specifications, and direct sales.

The price still needs to cover materials, labor, payment processing, operating expenses, and a sustainable margin. It does not need to position an everyday security product as a luxury item.