OTTOLOCK Sidekick Compact U-Lock
Lightweight Anti-Theft Bike Lock for Road, Mountain & Electric Bikes with Keys
Price as of 2026-06-02. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$7–$19
- Mid-range:$19–$48← You are here
- Premium:$48+
Is This Right For You?
- •Buyers who prioritize quality over price in Bike Locks
- •Those who want a top-rated option — in the top 2% of Bike Locks by rating
- •NDakter Bike Chain Lock — 58% cheaper at $15 (Score A)
📊 Based on data analysis of 54 products in this category.
Mubboo Score: B
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 OTTOLOCK Sidekick Compact U-Lock | Most Popular Sportneer Bike Lock: 5 Digit Combination High Security Anti | Best Rated Kryptonite Keeper 785 Bike Chain Lock | Best Value NDakter Bike Chain Lock | |
|---|---|---|---|---|
| Price | $36 | $19.79 | $47.95 | $14.98 |
| Rating | 4.8/5 | 4.5/5 | 4.7/5 | 4.5/5 |
| Reviews | 498 | 12,433 | 11,289 | 7,614 |
| Mubboo Score | B | A | B+ | A |
Quick Specs
- Color
- Orange Compact
- Shape
- Round
- Material
- Alloy Steel, Silicone
- Lock Type
- Key Lock
- Style Name
- Modern
- Unit Count
- 1.0 Count
- Item Weight
- 1.7 Pounds
- Manufacturer
- OTTO DesignWorks
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.
- Ease of Use / Simple Operation
- Sturdy Build / Solid Security
- Suitable for Low-Risk / Quick Stops
- Convenient Combo/Key Features
- Size Limitations / Too Small for Some Bikes
- Mounting/Operation Issues (Plastic Mount, Fiddly Locking)
- Fabric Cover Deterioration
Key Features
- ✦More Convenient U-LOCK - From the makers of OTTOLOCK, the SIDEKICK brings innovation to the traditional U-Lock with a compact, lightweight design that effectively deters opportunit…
- ✦Lightweight Bike Lock - At only 750 grams (1.65 lbs), the SIDEKICK allows you to lock a single tube to a post or pole at a fraction of the weight of a traditional U-Lock. The openi…
- ✦Protect Your Frame - The body of the SIDEKICK is coated in high quality silicone that won't scratch or damage your bike frame. Made with double-shackle 12mm hardened steel and an a…
- ✦Versatile Security - Use the SIDEKICK on its own or with a secondary lock depending on the length of your stop and location
- ✦Easy-To-Use - The SIDEKICK comes with three keys, and the compact size and bright color options make it great for kids and new riders who want to protect their bikes
Source: product listing on Amazon.
If not the Sidekick Compact U-Lock, consider these
Bottom Line
OTTOLOCK Sidekick Compact U-Lock earns Mubboo Score B. Priced at $36 — a premium option, below the category average of $40. Rated 4.8/5 from 498+ reviews. Strong buy if: buyers who prioritize quality over price in bike locks, those who want a top-rated option.
Frequently Asked Questions
Is the OTTOLOCK Sidekick Compact U-Lock worth buying in 2026?
It earns a Mubboo Score of B, with a 4.8/5 rating from 498 reviews — better than 98% of Bike Locks we track.
How much does the OTTOLOCK Sidekick Compact U-Lock cost?
It is currently $36 — premium-tier pricing for Bike Locks.
How does the Sidekick Compact 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, 12,433 reviews, $19.79). The Sidekick Compact 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.