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D Lock

Maybe

Products sell for $25.86 on average, inside the sweet spot. But the top 5 brands take 90% of clicks, so D Lock is a Maybe.

Flapen Score
52
52 / 100
Top 41% of 792 Sports & Outdoors niches · +2 vs the category median of 50
Market size
£455K/yr330K searches / yr
90-day growth
+10.3%search demand this quarter
Competition
60%top-5 click share · 9 brands · 39 sellers

Flapen Score

D Lock against its category

The dotted line is the Sports & Outdoors average. Past it, D Lock is stronger. Inside it, weaker.

52Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The D Lock market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for D Lock 330K times last year and spent an estimated £455K. The top 5 brands take 90% of clicks. Demand peaks in Sep. Flapen scores it 52 out of 100, a Maybe.

01 · Demand

An estimated 5.3% of those searches ended in a purchase.

Shoppers searched for this 330K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 5.3% of those searches ended in a purchase. Searches in the last 90 days moved +10.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £455K a year.

Searches, last 12 months
330K
Growth, 90 days vs prior 90
+10.3%
Conversion, latest week
5.3%
Market size, estimated
£455Ka year
Peak month
September1.9× the quietest month
Top search term
kryptonite bike lock86K searches a year

02 · Price

A sale here is worth £25.86.

Listings sell for £25.86 on average, from £6.86 to £73.42. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 500 to 750 of them. At £25.86 that is £13K to £19K a year per listing.

Average price
£25.86inside the $15 to $100 sweet spot
Price range
£6.86–£73.42
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
15K–20K
Units per listing a year
500–750
Revenue per listing a year
£13K–£19K
Returns
2.0%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads and reviews.

100% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #15 within Cycling. It carries 3,403 reviews at 4.47 stars, so a new listing needs social proof before a better product.

Sponsored listings
100%
Prime listings
95%
Out of stock, average day
0.0%
Average rank
#15in Cycling
Average rating
4.47 starsAmazon United Kingdom average 4.36 stars
Average reviews
3,403per listing
Listings tracked
21

04 · Newcomers

1 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 57 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
1Amazon's first-year sales bar
Average brand age
57 months

Products

Top D Lock products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 29, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 60% of clicks. Leaders hold, but buyers still shop past them.

£0£45K£91K£136K£182K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

9 falling

Sellers

39

Est. top-5 brand share

90%

Top 20: 100%

Est. top-5 click share

60%

Top 20: 99%

Open market

7%

  • Kryptonite64%
  • Sportneer13%
  • Burg-Wachter6%
  • NDakter4%
  • Sterling4%
  • Byking3%
  • Open — no brand owns it (3 brands, 7%)

Demand

D Lock search demand

Weekly searches over the year, seasonality beneath. Pick a range.

10K6KSpike '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Sep · busiest ÷ quietest = 1.9×

Search terms

Top D Lock search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • kryptonite bike lock86K/yr
  • d lock46K/yr
  • d locks for bicycles44K/yr
  • bike d lock26K/yr
  • u lock bike lock12K/yr
  • u lock14K/yr
  • bike u lock13K/yr
  • kryptonite lock14K/yr
  • d lock bike10K/yr
  • kryptonite9K/yr

Reviews and returns

What reviews say buyers love and hate about D Lock

We read the reviews and the return reasons for every product selling here.

24%of positive reviews mention “Locking Mechanism”
14%of negative reviews mention “Durability”
2.0%of orders come back
“Broke on the first use”
A buyer, on “Durability”14% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

16 topics

NegativePositive

FAQ

Common D Lock questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data