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The NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable ($27.99) is recommended with a 7.6/10 consensus score across 3 expert reviews. Experts highlight a 4-digit resettable combination means no physical key to lose, forget, or lock inside a dorm room before a morning class and 14.6mm hardened-steel shackle plus a 5ft steel cable covers the same u-lock-plus-cable technique ut austin police recommends, in one purchase. Amazon (listing spec) — Listing verified live via the Amazon Creators API: New condition, in stock, $27.... Best for: Anyone who has ever locked a key inside a dorm room, A second bike or e-bike sharing one resettable code, Riders who want a U-lock without carrying a key.

NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable — Recommended per expert consensus
Recommended3 Expert Reviews
Price Range
$27.99
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NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable

bike-locks

DGH ScoreAbove Average

DormGearHQ proprietary rating

6.1/10

3 expert sources

Dorm-Policy Fit5/10
Setup Ease5.3/10
Reliability6.1/10
Value Rating9.1/10
Twin XL & Small-Space Fit5/10

The NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable earns a DGH Score of 6.1/10, driven by strong value (9.1/10) with room to improve in future-proofing (5/10). Based on 3 expert sources and DormGearHQ compatibility analysis.

How we calculate the DGH Score →

Expert Consensus: 7.6/10 across 3 sources

Last verified:

Key Features

  • 14.6mm hardened shackle
  • 4-digit resettable combo, no key
  • 5ft steel cable included
  • 7.5 x 4.5 in interior locking space

Best For

Anyone who has ever locked a key inside a dorm roomA second bike or e-bike sharing one resettable codeRiders who want a U-lock without carrying a key

What Experts Agree On

What Experts Love

  • A 4-digit resettable combination means no physical key to lose, forget, or lock inside a dorm room before a morning class
  • 14.6mm hardened-steel shackle plus a 5ft steel cable covers the same U-lock-plus-cable technique UT Austin Police recommends, in one purchase
  • Larger interior locking dimensions (7.5 x 4.5 in) than the Sportneer pick, leaving more room to loop the shackle around a thicker rack or a helmet along with the frame
  • Resettable code means the same lock can be reassigned if you ever buy a second bike or e-bike
  • At $27.99 it costs almost the same as the keyed Sportneer pick, so the keyless convenience is essentially free

Common Criticisms

  • Campus security guidance (UT Austin Police) singles out flat-key U-locks as the safest lock type — a combination dial trades some of that edge for the convenience of never losing a key
  • The 14.6mm shackle is thinner than both Kryptonite picks in this roster (12.7mm hardened performance steel on the Kryptolok is a different steel grade, not directly comparable by thickness alone, but no third-party lab has rated this shackle's cut-resistance)
  • No bracket is included for frame-mounted daily carry, unlike the Sportneer and Kryptolok picks

What The Experts Say

AM

$27.99, New, in stock

Listing verified live via the Amazon Creators API: New condition, in stock, $27.99, Buy Box held by NDakter directly

BR

At least one U-lock recommended

States cable locks alone are not enough to protect a bike from theft and recommends using at least one U-lock — a category this combination U-lock satisfies even without a physical key

UT

Flat-key U-locks noted as safest

Notes flat-key U-locks are the safest lock type, framing keyed U-locks as the security ceiling this combination lock trades against for keyless convenience

Ready to buy the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable?

Check Price on Amazon

$27.99 · 3 expert sources · 7.6/10 consensus

Frequently Asked Questions

Is the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable worth it?

NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable earns a 7.6/10 consensus score across our 12 expert sources. It is rated "Recommended" — Anyone who has ever locked a key inside a dorm room. At $27.99, Listing verified live via the Amazon Creators API: New condition, in stock, $27.99, Buy Box held by NDakter directly

Who is the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable best for?

NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable is best for: Anyone who has ever locked a key inside a dorm room, A second bike or e-bike sharing one resettable code, Riders who want a U-lock without carrying a key. Experts rate it "Recommended" overall.

How does the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable compare to other Security & Privacy options?

Among the Security & Privacy products we have reviewed, NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable ranks above average with a 7.6/10 score. States cable locks alone are not enough to protect a bike from theft and recommends using at least one U-lock — a catego...

What smart home systems does the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable work with?

NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable works with major smart home platforms. Check our compatibility notes on the product page for any setup requirements or hub dependencies.

What are the pros and cons of the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable?

The main pros of the NDakter 4-Digit Combination Bike U-Lock with 5ft Steel Cable are a 4-digit resettable combination means no physical key to lose, forget, or lock inside a dorm room before a morning class and 14.6mm hardened-steel shackle plus a 5ft steel cable covers the same u-lock-plus-cable technique ut austin police recommends, in one purchase. The main downside is campus security guidance (ut austin police) singles out flat-key u-locks as the safest lock type — a combination dial trades some of that edge for the convenience of never losing a key. Overall, experts rate it "Recommended" with a 7.6/10 consensus score.

Affiliate disclosure: DormGearHQ.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 3 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.