Kryptonite Kryptolok 2 Chain

$91.95

In Stock

Heavy-duty Kryptolok 2 chain lock with 9mm four-sided 3t manganese steel links and a pick/drill-resistant disc-style cylinder. Available in 95cm, 120cm and 152cm lengths for high-theft areas.

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Available Options

Option	Price	Availability
Kryptonite, KryptoLok 2 995, Chain Lock, Key, 9mm, 95cm, 3.1', Black	$91.95	In Stock
Kryptonite, KryptoLok 2 915, Chain Lock, Key, 9mm, 152cm, 5', Black	$129.95	In Stock
Kryptonite, Kryptolok 2 912 Chain, Chain Lock, Key, 9mm, 120cm, 4', Black	$109.95	In Stock

Product Details

Overview & Technology

The Kryptonite Kryptolok 2 Chain is built for riders who need serious theft resistance without sacrificing versatility. The chain uses 9mm four-sided links forged from 3t manganese steel — a heat-treated alloy engineered to resist cutting, sawing and leverage attacks. The four-sided profile increases resistance to bolt and cable cutters compared with round or flattened links of the same thickness. The lock head features a disc-style cylinder that is expressly designed to be pick- and drill-resistant. Disc cylinders limit exposed keyway access and include hardened inserts where common attack tools try to engage the mechanism. That combination of hardened chain and protective cylinder gives you a practical, high-security option for securing premium road or commuter bikes in high-risk areas.

Key Features

Security-driven details that matter on the street: • 9mm four-sided links: 3t manganese steel construction for cut and leverage resistance. • Disc-style cylinder: pick- and drill-resistant design for a tougher locking point. • Key lock operation: durable key mechanism for reliable daily use—Kryptonite typically supplies two keys with each lock. • Multiple lengths: available in 95cm (3.1'), 120cm (4') and 152cm (5') to suit different locking scenarios. These features are balanced for real-world use: the chain is heavy enough to deter thieves but still flexible enough to wrap around bike frames, wheels and a fixed anchor. The finish and construction are designed to withstand regular outdoor exposure; regular lubrication of the cylinder will keep the key action smooth over time.

Fit & Compatibility

The Kryptolok 2 is a universal-style chain that threads freely through frame triangles, both wheels and around posts or rails. Choose length based on how you lock: the 95cm is compact and easier to carry for single-bike locking, the 120cm balances reach and weight for locking frame+wheel, and the 152cm is best when you need to secure the frame and both wheels or to loop around larger anchors. Carry and mounting: This product does not include a bracket — it ships without a frame-mount. Because of the chain's weight and bulk, most riders carry it in a pannier, saddlebag, backpack, or with an aftermarket mounting bracket designed for chain locks. The chain's 9mm thickness fits through most frame openings but will not compress to fit small frame-mounted clips made for thin cable locks.

Who It's For

The Kryptolok 2 is aimed at commuters, urban riders and road cyclists who park in moderate- to high-risk areas and need a physically robust deterrent. If you lock up in city centers, train stations or other places with higher theft rates, the Kryptolok 2 provides a meaningful step up in security compared with cable or thin-chain options. It’s also a good match for riders with higher-value road or commuter bikes who accept a bit more weight in exchange for stronger protection. If portability and ultra-lightweight packing are your top priorities (for example, aero road racers or bikepackers minimizing grams), consider a lighter U-lock paired with a cable for wheels instead.

Key Features

✓ 9mm four-sided links of 3t manganese steel for high cut resistance
✓ Pick- and drill-resistant disc-style cylinder for a tougher lock head
✓ Available in 95cm, 120cm and 152cm lengths for flexible anchoring
✓ Key-operated cylinder with durable key action (typically ships with two keys)
✓ No bracket included—carry in bag or mount with aftermarket bracket
✓ Ideal for commuters and urban riders in moderate- to high-theft areas
✓ Balanced security-to-weight ratio for everyday use and frequent locking

Specifications

Bracket	No
Internal Lock Size Metric	95cm
Lock Type	Key
Primary Color	Black
Thickness In mm	9mm
Internal Lock Size Imperial	3.1'

Product Identifiers

Vendor Item #	000839
UPC	720018000839

Frequently Asked Questions

Does the Kryptolok 2 come with keys?

Yes — Kryptonite locks typically ship with two keys so you have a spare for daily use. Keep one key separate from the lock (at home or with a trusted person) and register your key code if provided for replacement options.

Is this chain weatherproof?

The chain and cylinder are built for outdoor use with a durable finish and hardened materials. To maximize longevity, periodically clean the chain and apply a light lubricant to the cylinder to prevent moisture buildup and keep the key action smooth.

Which length should I choose—95cm, 120cm or 152cm?

Choose 95cm if you want a more compact, easier-to-carry lock for single-bike locking. The 120cm is the most versatile for securing frame plus one wheel; the 152cm gives the extra reach needed to lock frame and both wheels or to loop around larger posts. Consider how and where you typically lock before selecting length.

Can this chain secure an e‑bike or heavy bike?

Yes—the 9mm manganese steel links and robust cylinder provide strong physical resistance appropriate for heavier bikes. Remember that no lock is completely theft-proof; for high-value or e-bikes, combine the chain with good locking technique and choose public, well-lit locations.

Is a mounting bracket included?

No. The Kryptolok 2 ships without a frame bracket. Because of its weight, many riders carry it in a bag, pannier or use an aftermarket chain mount designed for heavy locks. Check Forest Bikes for compatible mounting accessories.

What warranty does Kryptonite offer?

Kryptonite generally offers a limited warranty against defects in materials and workmanship. Warranty terms can vary by model and region, so check the manufacturer documentation or Forest Bikes product page for specific coverage and claim instructions.

Buying Guide

When choosing a chain lock, prioritize material quality, link profile and cylinder security over raw thickness alone. Hardened alloys like 3t manganese steel and four-sided link geometry provide better resistance to cutting tools than thinner round links. Also decide on the required length: longer chains give versatility but add weight. Consider how you’ll carry the chain daily—if you need something ultra-portable, a U-lock might be a better primary option. For riders parking in high-risk urban areas or securing high-value bikes, a mid-weight chain like the Kryptolok 2 is a practical compromise between portability and strong physical protection.

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