u lock
Launch itA $936K/yr market growing +48.1% this quarter with returns at 3.5% — clears our launch bar.
Avg price
Incredible$33.15avg listing price — sweet spot $15–$100
Market size
Great$936K$936K/yr · 547K searches
Price range
Great$13.13–$125.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Good+48.1%90-day search growth — must beat 0% to launch
Conversion
Good5.2%search→purchase rate — share of searches ending in a sale
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Returns
Okay3.5%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Review moat
Okay3,339.44avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, u lock is a $936K/yr Amazon United States market (547K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Aug–Sep. Verdict: Launch it — 56/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
u lock market data
- Units sold / yr
- 30K–40K
- avg 1,000–1,250/product
- Revenue / yr
- $995K–$1.3M
- units × avg price
- Conversion rate
- 5.2%
- Avg BSR
- #23
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 92%
- Out of stock
- 0.0%
- Avg brand age
- 50 months
- Avg seller age
- 173 days
Competition & brand share
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
67
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
58%
Top 20: 94%
Open market
11%
- Kryptonite26%
- Master Lock25%
- Sportneer24%
- NDakter6%
- Hapleby4%
- OTTOLOCK4%
- Open — no brand owns it (6 brands, 11%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +48.1% search growth over the last 90 days.Peak months: Aug, Sep · busiest ÷ quietest = 2.6×
Top u lock search terms
- u lock142K/yr
- u lock bike85K/yr
- bike u lock75K/yr
- ulock bike lock31K/yr
- u bike lock28K/yr
- u lock for scooter33K/yr
- ulock30K/yr
- u-locks for bikes7K/yr
- bike u-locks19K/yr
- u lock for ebike7K/yr
Top u lock products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Master Lock Black Bike Lock with Key Standard Size U-Lock for Bicycles and Other Outdoor Equipment Anti-Theft Lock for Bikes 8320D
Master Lock$13.134.5★4,951 rev
Sportneer Bike Lock: Heavy Duty Anti Theft Bike U Lock with 5ft Security Steel Cable - 17mm Shackle Bicycle U-Locks with 2 Keys & Mounting Bracket for Road Mountain Bike Size 7.76x5.02 1.64lb
Sportneer$26.204.6★5,123 rev
Kryptonite Combo Bike U-Lock Standard Anti-Theft Security Bicycle Lock 12mm Steel Shackle 4-Digit Resettable Combination U Lock for Scooter Road Mountain Bikes
Kryptonite$20.274.3★1,035 rev
Kryptonite Bike U-Lock with Braided Steel Cable High Security Anti-Theft Bicycle U Lock 12mm Shackle and 8mm x4ft Length Security Cable with Keys for Scooter Road Mountain Bikes
Kryptonite$23.874.4★1,916 rev
Kryptonite Evolution Mini-7 Bike U-Lock 13mm Steel Shackle 4 ft Cable
Kryptonite$80.414.5★14,059 rev
Newest
by launch date
Corki Bike Lock Heavy Duty Anti Theft with 5ft Cable Bicycle U Lock
corki$28.24106 rev
Hapleby Premium Bike Lock Set with 2 Keys Bike U-Lock with 6 Feet Thickened Solid Steel Cable Heavy Duty Anti Theft Bicycle U-Lock with Mounting Bracket for Road Mountain Folding Bike and Scooter
Hapleby$15.22511 rev
Sportneer Bike Lock - 17mm Shackle Heavy Duty Anti Theft Bike U Lock with 2 Keys - Bicycle U-Locks with Sturdy Mounting Bracket for Road Mountain Electric & Folding Bike Size 7.76x5.02
Sportneer$22.86132 rev
Bike U Lock with 5ft Security Cable 17mm Shackle Bike Lock with 3 Keys and Mounting Bracket Bicycle U-Locks Perfect for Road Mountain and Electric Bikes Bicycle Lock
Weogine$19.12199 rev
Febabilo Bike Locks Heavy Duty Anti Theft Combo Bike U Lock 4-Digit Resettable Combination E-Bike Large U Shaped Lock with 5Ft Steel Cable for Electric Bike Bicycle Escooter Motorcycle Door
Febabilo$27.62245 rev
Trending
90-day click momentumCorki Bike Lock Heavy Duty Anti Theft with 5ft Cable Bicycle U Lock
corki$28.244.6★
Master Lock Bike U Lock 7.25 with 4 Looped Cable 3/8 Bike Locks for Ebike Scooter Motorcycle or Bicyle. 8385D
Master Lock$15.674.5★
Kryptonite Bike U-Lock with Braided Steel Cable High Security Anti-Theft Bicycle U Lock 12mm Shackle and 8mm x4ft Length Security Cable with Keys for Scooter Road Mountain Bikes
Kryptonite$23.874.4★
OTTOLOCK Sidekick Compact U-Lock Black
OTTOLOCK$35.134.5★
OTTOLOCK Sidekick Compact U-Lock Orange
OTTOLOCK$34.184.8★
What buyers say about u lock
What buyers praise and complain about, mined from review topics.What buyers love
“Decent quality”
“Good and strong”
“the U lock is great”
“Easy to put on and take off”
“Great value”
“Works as advertised”
“Had it for years”
“Nice and small”
“Its not too heavy”
“Great value for security”
What buyers complain about
“The bracket could be bigger”
“awkward locking mechanism”
“The quality control on the shipping is either non-existent or extremely lax”
“Easy to break”
“the mount is stupid”
“hard to make it works”
“OVER PRICED GARBAGE”
“very bulky”
“Does not work”
“The cord itself is very thick”
Top return reasons
Common questions
- Is u lock profitable to sell on Amazon United States?
- The niche generates $936K/yr across 25 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +48.1%. Flapen's verdict: Launch it (56/100).
- How competitive is the u lock niche?
- 12 brands and 67 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in u lock?
- Top complaints mined from reviews: Size-Overall, Locking Mechanism, Quality-Overall. The return rate is 3.5%.
- When does demand for u lock peak?
- Demand peaks in Aug–Sep; the busiest month runs 2.6× the quietest.
- What does it cost to enter the u lock niche?
- Listings span $13.13–$125.23; the average listing price is $33.15 (sweet spot $15–$100). The average incumbent carries 3,339 reviews — the moat a new listing must climb.