Kryptonite Extra Length Key Chain 3.9 Feet Long for Bicycle Security
Kryptonite Extra Length Key Chain 3.9 Feet Long for Bicycle Security
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Kryptonite Extra Length Key Chain 3.9 Feet Long for Bicycle Security

Key item features

  • 8mm hardened steel chain links resist hand tools, bolt cutters, and leverage attacks
  • Nylon protective covering helps prevent scratching and wear and tear on your bike
  • Chain length: 3.9 feet
  • Lifetime warranty
Current price is $27.96
Price when purchased online
  • Free 90-day returns

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Ships in the manufacturer's original packaging, which may reveal the contents.

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Customer ratings & reviews

4.6 out of 5 stars
stars110 ratings36 reviews
How item rating is calculated
  1. 5 stars84% (92)
  2. 4 stars5% (5)
  3. 3 stars6% (7)
  4. 2 stars1% (1)
  5. 1 star5% (5)

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Showing 1-3 of 36 reviews

Feb 11, 2026
savberit_2117
5 out of 5 stars review

Heavy Duty!

This bike lock has some serious weight to it! It has a good length as well which would allow for good coverage of the bike. It took me a couple moments to figure out how to unlock and lock the lock, but was easy to understand after that. I love that the chain is covered and the fabric covering it feels pretty heavy duty. Please forgive my horrible photo - my personal bike is in winter storage!

Incentivized Review
Review from influenster.com
Helpful?6XGK10K7U1DW17589662804
May 1, 2026
mindy
Top Reviewer
5 out of 5 stars review

Verified Purchase

Impressive Lock!

I first purchased Kryptonite locks a decade ago. I originally purchased the locks for our bikes but my husband "borrowed" them during Covid to secure our travel travel from being stolen - the locks worked perfectly to secure the chains, the hitch, and our propane tanks. I recently purchased a new bike and purchased another Kryptonite to protect the bike. I trust the locks completely! My husband? Not so much. This time I will hide the keys .

Helpful?6XGK10K7U1DW17589662804
Apr 26, 2026
john
5 out of 5 stars review

Verified Purchase

I really like this brand I had the last one someone tried to cut through it it was a cable and it held up. so I was replacing it and decided to try this one outstanding recommend to anyone that's needing some type of protection to keep Intruders out or away from their items thank you very much

Helpful?6XGK10K7U1DW17589662804