Kryptonite Bike U-Lock - Bike Locks | Mubboo
Kryptonite

Kryptonite Bike U-Lock

with Braided Steel Cable, High Security Anti-Theft Bicycle U Lock, 12mm Shackle and 8mm x4ft Length Security…

$234.4(1,880 reviews)
Mubboo Score B+
Buy on Amazon $23

Price as of 2026-06-02. Check Amazon for the current price.

Quick Decision

Mubboo Score
B+
Best For
Shoppers looking for Bike Locks from Kryptonite
Skip If
Rating sits in the bottom 28% of Bike Locks
Reviews
1,880+ · reliable

Price Intelligence

📊 In Bike Locks, this is a mid-range product.
  • Budget:$7–$19
  • Mid-range:$19–$48← You are here
  • Premium:$48+

Is This Right For You?

✅ Great for
  • Shoppers looking for Bike Locks from Kryptonite
⚠️ Think twice if
  • Rating sits in the bottom 28% of Bike Locks — higher-rated options exist
  • Sportneer Bike Lock: 5 Digit Combination High Security Anti offers a better rating (4.5/5) at a similar or lower price ($10)
💡 Consider instead
  • Sportneer Bike Lock: 5 Digit Combination High Security Anti — 57% cheaper at $10 (Score A)
  • Kryptonite Keeper 785 Bike Chain Lock — higher rated at 4.7/5 ($48)

📊 Based on data analysis of 54 products in this category.

Mubboo Score: B+

Quality8.8/10
based on 4.4/5 customer rating
Popularity7.0/10
1,880 reviews, top 43% in Bike Locks
Value6.1/10
priced below 61% of Bike Locks
How we calculate the Mubboo Score

Quality (45%): customer rating, normalized to a 10-point scale

Popularity (35%): review volume vs the category leader, log-scaled

Value (20%): price position vs other Bike Locks

Computed from live Amazon rating, review count, and price across 54 Bike Locks available to US consumers · last refreshed 2026-06-02.

How It Compares

This Product
Kryptonite Bike U-Lock
Most Popular
Sportneer Bike Lock: 5 Digit Combination High Security Anti
Best Rated
Kryptonite Keeper 785 Bike Chain Lock
Best Value
Titanker Bike Lock
Price$23$9.99$47.95$9.99
Rating4.4/54.5/54.7/54.6/5
Reviews1,88012,43611,2897,573
Mubboo ScoreB+AB+A

Quick Specs

Color
Black
Shape
U Shape
Material
Alloy Steel
Lock Type
Key Lock
Style Name
Bike U-Lock with Cable
Unit Count
1.0 Count
Item Weight
1.9 Pounds
Finish Types
Painted

What People Say

Synthesized from 40 reviews · 100% verified purchases.

Check lock dimensions and length to ensure it fits your bike and the object you plan to lock to; for higher risk areas, consider a heavier-duty lock with higher security ratings.

Praised for
  • Ease of Use / Simple Operation
  • Sturdy Build / Solid Security
  • Suitable for Low-Risk / Quick Stops
  • Convenient Combo/Key Features
Common complaints
  • Size Limitations / Too Small for Some Bikes
  • Mounting/Operation Issues (Plastic Mount, Fiddly Locking)
  • Fabric Cover Deterioration

Expert Picks in Bike Locks

wirecutter
  • Kryptonite Evolution Mini-7 — Most riders / everyday use
  • Kryptonite New York Fahgettaboudit Mini — High-theft areas / urban commuters
  • Hiplok D1000 — Maximum security / expensive bikes
tomsguide
  • Hiplok D1000 — Overall top security pick
  • Kryptonite New York Lock Standard — Urban commuters
  • Abus Granit Super Extreme 2500 — E-bike owners
  • Hiplok DX1000 — E-bikes / motorcycles needing large locking area

Category recommendations from independent expert publications. Source links in References.

Related Video Reviews

Key Features

  • HEAVY-DUTY BENT FOOT DESIGN: Constructed with a 12mm hardened steel shackle featuring a bent foot anti-rotation design that massively resists bolt cutters and twisting leverage att…
  • VERSATILE MULTI-FUNCTIONAL SECURITY: Includes an 8mm (5/16") x 4-ft (1.2m) double-loop security cable ideal for securing your front wheel or accessories. Together with the U-lock, …
  • COMPACT, COMMUTER-FRIENDLY SIZE: This U-lock features interior locking dimensions of 3.25” x 6.25” and a lightweight total weight of just 2 lbs. This provides a tight, secure fit a…
  • 2 STAINLESS STEEL KEYS INCLUDED: Comes equipped with 2 durable stainless steel keys, ensuring you always have a reliable backup on hand
  • LIFETIME WARRANTY & CUSTOMER SUPPORT: Kryptonite is committed to providing high-quality products and ensuring full satisfaction. This lock is backed by a limited lifetime warranty …

Source: product listing on Amazon.

About Kryptonite

  • 13 products in our database
  • Average rating: 4.5/5 across all products
  • Price range: $19.99$166.57
  • Categories: Bike Locks

If not the Bike U-Lock, consider these

💰 Save money
Jokmae Long Coiled Security Resettable Combination Bike Cable 4 Digit Lock, Anti-Theft Accessories for Mountain and Road Bike, Electric Bicycle, Scooter, 32 inch - Bike Locks | Mubboo
Jokmae Long Coiled Security Resettable Combination Bike
$7.49 · 4.3 (3,630)
$15.50 less than the Bike U-Lock, with 4.3★ from 3,630 reviews
Higher rated
Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence - Bike Locks | Mubboo
Kryptonite Keeper 785 Bike Chain Lock
$47.95 · 4.7 (11,289)
4.7★ vs 4.4★ — rated 0.3 higher by 11,289 reviewers
🔥 Most popular
Master Lock Bike Lock Cable with Combination 4ft Black Bicycle Lock with Vinyl Coating 8143D - Bike Locks | Mubboo
Master Lock Bike Lock Cable
$8.99 · 4.4 (47,829)
47,829 reviews — 25.4× more than the Bike U-Lock
See all Bike Locks

Bottom Line

Kryptonite Bike U-Lock earns Mubboo Score B+. Priced at $23 — a mid-range option, below the category average of $40. Rated 4.4/5 from 1,880+ reviews. Strong buy if: shoppers looking for bike locks from kryptonite. Skip if: rating sits in the bottom 28% of bike locks — Sportneer Bike Lock: 5 Digit Combination High Security Anti (Score A, $10) may fit better.

Buy on Amazon $23Last verified: 2026-06-02

Frequently Asked Questions

Is the Kryptonite Bike U-Lock worth buying in 2026?

It earns a Mubboo Score of B+, with a 4.4/5 rating from 1,880 reviews — better than 28% of Bike Locks we track.

How much does the Kryptonite Bike U-Lock cost?

It is currently $23 — mid-tier pricing for Bike Locks.

How does the Bike U-Lock compare to other Bike Locks?

The category's most-reviewed alternative is the Sportneer Bike Lock: 5 Digit Combination High Security Anti (4.5/5, 12,436 reviews, $9.99). The Bike U-Lock carries a Mubboo Score of B+ vs A.

Sources & References

Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.

Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-02) and may change.