brompton
Skip itA small market ($57K/yr) — this niche doesn't clear our bar today.
Avg price
Great$46.81avg listing price — sweet spot $15–$100
Price range
Great$13.42–$98.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Good+52.2%90-day search growth — must beat 0% to launch
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Okay3.6%return rate — above 6% kills the launch gate
Review moat
Okay2,081.6avg incumbent reviews — the moat a new listing must climb
Brand share
Okay89%top-5 brand share — brands hold most of the demand
Competition
Bad71%top-5 click share — a locked-up shelf
Conversion
Bad1.4%search→purchase rate — share of searches ending in a sale
Market size
Bad$57K$57K/yr · 85K searches
Competition
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
9 rising
Sellers
11
Top-5 brand share
89%
Open market
8%
- HOTO66%
- MACFOX14%
- BUCKLOS3%
- Elegananccy3%
- Enjoy Mfg3%
- IUVWISN3%
- Open — no brand owns it (3 brands, 8%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
HOTO Mini Bike Tire Pump 25s Fast Inflate Bicycle Pump with Guage 150PSI Portable Electric Bike Air Pump with Presta and Schrader Valve for Road Bike Motorcycle Mountain Bike BMX Sports Ball
HOTO$46.714.5★890 rev
HOTO Tire Inflator Portable Electric Air Pump Pro for Car Tires with Digital Pressure Gauge 120PSI Cordless Tire Pump with 12V Motor 7500mAH Battery Air Compressor for Car Motorcycle Bike Ball
HOTO$73.764.4★250 rev
HOTO Air Pump ADV Tire Inflator Portable Air Compressor with Digital Pressure Gauge 150PSI Electric Tire Pump with 2*2000 mAh Battery LED Light & Auto Shut-Off Fits for Car Motorcycle Bike Ball
HOTO$40.264.8★75 rev
HOTO Air Pump Master Portable Cordless Tire Inflator Electric Air Pump with 9 Pump Modes 12V DC Car Connector for Car Bikes Inflatable Pool Float Air Mattress Kayak Tent Paddle Board Sup
HOTO$98.004.2★118 rev
MACFOX Bike Frame Bag Black - Bike Pouch Cycling Phone Wallet with Zipper - Bike Accessories for Storing Phone Suitable Electric Bike
MACFOX$63.614.6★28 rev
Newest
by launch date
BAOUFF Kickstand for Ebike MACFOX Adjustable 6061 Aluminum + PP Kick Stand for Electric Bike MACFOX X1S/X1
BAOUFF$19.788 rev
MACFOX Electric Bike LCD Display Meter Panel Bike Computer Bicycle Speedometer Electric Display 36V 48V LCD GD01 Display 5 Pin Plug for 22.2mm
MACFOX$57.998 rev
Enjoy Mfg USA-Made Seat Cover - Compatible with Macfox X7 / X7L / X1S /X2 e-Bike (Verify fit with seat Measurement Image) #482 (All Black with White Ribs)
Enjoy Mfg$54.6326 rev
MACFOX E-Bike Four-Piston Hydraulic Disc Brake Replacement Set Delivering Superior Braking Performance Hydraulic Brake Upgrade for X1S
MACFOX$86.3026 rev
HOTO Mini Bike Tire Pump 25s Fast Inflate Bicycle Pump with Guage 150PSI Portable Electric Bike Air Pump with Presta and Schrader Valve for Road Bike Motorcycle Mountain Bike BMX Sports Ball
HOTO$46.71890 rev
Trending
90-day click momentum
IUVWISN Throttle for Surron LBX Eride Pro Electric Dirt Bike Twist Handle Throttle Cable for Sur Ron E-Ride Pro SR S SS 2.0 3.0 Black
IUVWISN$32.723.6★
BAOUFF Kickstand for Ebike MACFOX Adjustable 6061 Aluminum + PP Kick Stand for Electric Bike MACFOX X1S/X1
BAOUFF$19.784.8★
BUCKLOS Mountain Bike Pedals MTB Pedals Flat Bicycle Road Bike Adult Large Platform Pedal with Non-Slip Grips for Gravel/Ebike/Hybrid Bikes/Beach Cruiser(9/16 Nylon Purple)
BUCKLOS$21.734.6★
MACFOX Electric Bike LCD Display Meter Panel Bike Computer Bicycle Speedometer Electric Display 36V 48V LCD GD01 Display 5 Pin Plug for 22.2mm
MACFOX$57.994.8★
ROCKBROS Bike/Bicycle Phone Front Frame Bag Waterproof Tube Bag Cycling Pouch E-Bike Accessories for Men Compatible Phone Under 7 Straps Fit All Frames
ROCKBROS$23.024.4★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +52.2% search growth over the last 90 days.Peak months: Jul, Sep, Oct · busiest ÷ quietest = 2.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Super bright”
“The build quality is great”
“Fit on my bike perfect”
“As advertised”
“Worth it”
“Easy to install”
“came in handy”
“seems very durable”
“grateful for color choice”
“Good adhesion”
What buyers complain about
“Poor durability”
“seems a little bit big”
“one barely works”
“They never stay charged”
“Low battery life”
“the heat dissipation is terrible”
“Just cheap junk”
“Adhesive is worthless”
“Cheap for a reason”
“Possible defect”