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Kryptonite KryptoFlex 1218 Cable Lock — Specs & Analysis
Manufacturer specifications, compared against every other safety gear in our database. We do not test gear in the field — we measure, verify, and compare.
The KryptoFlex 1218 is a 12mm braided steel cable with a 4-digit resettable combo. At 180cm long, it secures both wheels and frame to a post. Not designed for high-crime areas, but perfect as a cafe stop deterrent during bikepacking trips through small towns.
Who Is the Kryptonite KryptoFlex 1218 Cable Lock Best For?
Bikepackers who need lightweight, deterrent-level security for cafe and store stops. If that describes your riding style, the KryptoFlex 1218 Cable Lock should be at the top of your shortlist. It sits in the Safety Gear category alongside 11 other products we track.
How It Compares
At 190g and $20, the KryptoFlex 1218 Cable Lock is 119g heavier than the lightest option in this category (the Garmin Varia RTL515 Rear Radar at 71g). The most budget-friendly option is the Adventure Medical Kits Ultralight .5 First Aid Kit at $18.
The price-to-weight ratio comes in at $11 per 100g — excellent value for money, making it a great option for riders on a budget.
What We Like
- +Long 180cm cable secures frame and wheels
- +Resettable 4-digit combination
- +Lightweight for a steel cable lock
- +Coils compactly for packing
Watch Out For
- −Can be cut with bolt cutters
- −Deterrent-level security only
- −Combo dials can stiffen in cold weather
The Bottom Line
We haven't scored the Kryptonite KryptoFlex 1218 Cable Lock, and neither has anyone else we can cite. It's here for its verified specifications and dimensions, which is what the fit tools run on — a score is an editorial judgement, and we don't hand one out until someone has a basis for it. What this page can tell you is measured: 190g, $20, and how both sit against every other safety gear product we track.
Price checked against the manufacturer on 20 August 2026 — see the source.
Specifications and dimensions come from the sources listed above. Where a page draws on first-hand riding, it says so.
How it compares
Against the 12 safety gear products we hold published specs for.
At 190g the KryptoFlex 1218 Cable Lock is lighter than 5 of 11 alternatives we track. The category median is 170g.
At $20 it undercuts 10 of 11 of them, against a median of $180. That works out at $11 per 100g — below the $65 median for safety gear products.
Weight and price come from published specifications. Cost per 100g is a blunt measure — it rewards light gear and says nothing about durability or whether the thing works — so treat it as one input, not a verdict.
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