Abus Steel-O-Chain 4804C

$30.99

In Stock

The Abus Steel-O-Chain 4804C is a compact, flexible 4 mm square-chain combination lock with a protective fabric sleeve and an individually settable code. Available in 75 cm and 110 cm lengths, it’s built for commuter convenience and everyday security.

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Available Options

Option	Price	Availability
Abus, Steel-O-Chain 4804C, Chain Lock, 75cm, 4mm, Black	$30.99	In Stock
Abus, Steel-O-Chain 4804C, Chain Lock, 110cm, 4mm, Black	$38.99	In Stock

Product Details

Overview & Technology

Abus Steel-O-Chain 4804C pairs a slim, flexible profile with Abus’ proprietary hardened-steel construction. The chain uses 4 mm square links made from special hardened steel unique to Abus, delivering an excellent balance of cut resistance and portability for everyday urban use. The chain is covered in a durable fabric sleeve to protect your frame’s paintwork and curb noise while locking. The lock head is a combination style with two-component moulded digits for long-term visibility and an individually settable code so you don’t need a key. Product details: Manufacturer Part #71617, Product Number 810399. Available in 75 cm and 110 cm lengths. Bracket: No. Primary color: Black.

Key Features

Security where you need it: the 4 mm square links are heat-treated and hardened, making them significantly tougher than soft-steel chains of the same thickness. While not aimed at professional-grade heavy-theft scenarios, this chain offers strong protection for commuters, campus riders, and quick urban stops. Bike-friendly design: the fabric sleeve stops the chain from rubbing or chipping paint and reduces rattling while you ride. The combination lock uses two-component moulded digits for long-lasting contrast and legibility in wet or dirty conditions. You can set the code to a number you’ll remember — no key to lose. • 4 mm square hardened-steel chain • Fabric sleeve protects paintwork and reduces noise • Individually settable combination with high-visibility digits

Fit & Compatibility

The Steel-O-Chain 4804C comes in two lengths — 75 cm and 110 cm — giving you choices for how you secure your bike. The 75 cm model is compact for locking a single frame to a post or a tight rack; the 110 cm model adds reach for locking frame and wheel to larger anchors or securing multiple bikes together. The chain’s flexible square links make it easy to loop through frames and around awkwardly shaped urban fixtures. Note that this model does not include a mounting bracket; it stows easily in a pack, under a saddle strap, or in a pannier when you need it out of the way.

Who It's For

This lock is aimed at everyday commuters, city riders, and students who need dependable, lightweight security that’s easy to carry. If you regularly make short stops in relatively busy, public areas, the Steel-O-Chain offers a secure, low-noise solution that won’t damage your frame. If you ride high-theft routes, leave expensive e-bikes or high-end road bikes unattended for long periods, consider pairing the chain with a hardened D‑lock or using a heavier gauge chain designed for maximum-resistance security. For weekend errands and daily commutes, the Steel-O-Chain 4804C hits the sweet spot of convenience and protection.

Key Features

✓ 4 mm square links made from Abus' special hardened steel
✓ Protective fabric sleeve prevents paint chips and reduces rattle
✓ Individually settable combination — no keys to carry
✓ Two-component moulded digits for long-term visibility
✓ Available in 75 cm and 110 cm lengths for versatile locking
✓ Lightweight, flexible design stows easily in bags or under saddle

Specifications

Bracket	No
Lock Type	Combination
Primary Color	Black
Thickness In mm	4mm
Internal Lock Size Imperial	2.5'
Internal Lock Size Metric	110cm

Product Identifiers

Vendor Item #	71617
EAN	4003318716171

Frequently Asked Questions

Can I reset the combination?

Yes. The Steel-O-Chain 4804C uses an individually settable combination. Resetting the code is done on the lock head following the instructions included with the product — keep your chosen code safe because combinations are not recoverable without the code.

Does this lock come with a mounting bracket?

No, this model does not include a mounting bracket. The chain is compact and flexible enough to stow in a backpack, saddle bag, or pannier. If you prefer on-bike mounting, check for compatible third-party brackets or consider a different Abus model that ships with a bracket.

Is a 4 mm chain secure enough for my bike?

A 4 mm hardened square chain offers solid protection for short stops, commuters, and areas with regular foot traffic. However, for long-term or high-risk parking (isolated areas, overnight storage), thicker chains or a hardened D‑lock rated for high security are recommended as complementary protection.

Which length should I choose — 75 cm or 110 cm?

Choose 75 cm if you want a compact lock for locking your frame to tightly spaced racks or posts. Select 110 cm when you need extra reach to loop through both frame and wheel or secure multiple bikes together. Consider how and where you typically lock up when picking length.

Will the fabric sleeve damage my bike's paint over time?

No. The fabric sleeve is designed to protect your paint from abrasion and metal-on-metal contact. Like any contact point, keep the sleeve clean and periodically check for trapped grit — a quick wipe will prevent scratches from accumulated debris.

Is this lock weather-resistant?

Yes — the lock body and digits are designed for everyday outdoor use, and the fabric sleeve helps keep moisture off the chain. Regular cleaning and occasional lubrication of the lock mechanism will prolong service life in wet climates.

Buying Guide

When choosing a chain lock, balance length, thickness, and portability. Thicker chains generally offer more cut resistance; length determines versatility at different racks and anchors. Combination locks remove the need for keys, but make sure you can confidently store and recall your code. For everyday commuting, a 4 mm hardened chain like the Steel-O-Chain 4804C is a practical choice — light enough to carry and strong enough for frequent short stops. If you routinely park in higher-risk zones, pair a compact chain with a hardened U‑lock or upgrade to a heavier gauge locking solution.

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