Is nitrogen shock fill kit profitable to sell on Amazon United States?

The niche generates $81K/yr across 25 tracked products. 7 of 11 products launched in the last 360 days are still selling. 90-day search growth is -24.3%. Flapen's verdict: Skip it (37/100).

How competitive is the nitrogen shock fill kit niche?

12 brands and 15 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 89% of demand.

What do buyers complain about in nitrogen shock fill kit?

Top complaints mined from reviews: Pressure, Leak-Proof, Quality-Overall. The return rate is 3.7%.

What does it cost to enter the nitrogen shock fill kit niche?

Listings span $15.08–$690.27; the average listing price is $128.44 (sweet spot $15–$100). The average incumbent carries 22 reviews — the moat a new listing must climb.

nitrogen shock fill kit

Skip it

Soft demand (-24.3% this quarter) — this niche doesn't clear our bar today.

Review moat

Incredible21.84

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$128.44

avg listing price — sweet spot $15–$100

Returns

Okay3.7%

return rate — above 5% kills the launch gate

Competition

Okay63%

top-5 click share — leaders hold, buyers still browse

Conversion

Okay2.3%

search→purchase rate — share of searches ending in a sale

Brand share

Okay89%

top-5 brand share — brands hold most of the demand

Market size

Bad$81K

$81K/yr · 27K searches

Growth

Bad-24.3%

90-day search growth — must beat 0% to launch

Price range

Bad$15.08–$690.27

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals Low Review Barrier High Price

According to Flapen's Amazon United States niche tracking, nitrogen shock fill kit is a $81K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 89% of demand. Verdict: Skip it — 37/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

nitrogen shock fill kit market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: $64K–$96K; units × avg price
Conversion rate: 2.3%
Avg BSR: #3,852
Page quality: 0%
Prime: 96%
Sponsored: 92%
Out of stock: 1.8%
Avg brand age: 44 months
Avg seller age: 211 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

63%

Top 20: 95%

Open market

ENYSAON45%
LTIENBST22%
Besilo9%
NICECNC8%
Sejaede4%
Power Tank3%
Open — no brand owns it (6 brands, 8%)

Demand

Weekly Amazon search volume, last 31 weeks — -24.3% search growth over the last 90 days.

Open Trend

Top nitrogen shock fill kit search terms

nitrogen shock fill kit16K/yr -38.3%2.1% conv.
nitrogen fill kit5K/yr -0.7%1.6% conv.
nitrogen shock refill kit3K/yr +23.5%1.9% conv.
air suspension nitrogen refill kit3K/yr -15.0%0.9% conv.

All search terms

Top nitrogen shock fill kit 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

ENYSAON Nitrogen Shock Fill Kit with 700Psi Nitrogen Gauge and 10in High-Pressure Flexible Hose Nitrogen Regulator Shock Fill Tool No-Loss Schrader Chuck for ATV UTV Off-Road Bike Dirt Bike

ENYSAON$134.754.3★10 rev

ENYSAON Nitrogen Shock Fill Kit with 700Psi Nitrogen Gauge and G1/4 & Schrader Valve Nitrogen Regulator Shock Fill No Loss Chuck Tool for ATV ATC UTV Off-Road Bike Dirt Bike

ENYSAON$71.274.4★15 rev

LTIENBST Nitrogen Shock Fill Kit with Schrader Valve 556 & 700Psi Nitrogen Gauge Nitrogen Regulator Shock Fill Tool Compatible with Off-road Bike ATV ATC UTV Dirt Bike

LTIENBST$174.244.5★37 rev

Nitrogen Shock Fill Kit with Schrader Valve and 700PSI Nitrogen Gauge Nitrogen Regulator Shock Fill Tool No-Loss Chuck & high-pressure flexible hose for with ATV/ATC/UTV/Dirt Bike/Off-Road Bike

Besilo$158.035.0★1 rev

ENYSAON Nitrogen Shock Fill Kit with 700Psi Nitrogen Gauge and Schrader Valve Nitrogen Regulator Shock Fill No Loss Chuck Tool for ATV ATC UTV Off-Road Bike Dirt Bike

ENYSAON$168.413.6★11 rev

Newest

by launch date

KAVLIRA Hydraulic Pressure Test Kit for Hydraulic Breaker Nitrogen Charging

KAVLIRA$77.6831 rev

4mo ago

LTIENBST Nitrogen Shock Fill Kit with 700Psi Nitrogen Gauge No-Loss Schrader Chuck Compatible with shock with a schrader valve on the off-road bike ATV UTV and cars Kawasaki Honda Yamada

LTIENBST$134.290 rev

6mo ago

LTIENBST Nitrogen Regulator Shock Fill with 700Psi Nitrogen Gauge Nitrogen Regulator Shock Fill No Loss Chuck Tool Compatible with Kawasaki Honda Yamada ATV UTVs with Shock with a Schrader Valve

LTIENBST$68.920 rev

6mo ago

Sejaede Nitrogen Regulator Kit 4000PSI Nitrogen Shock Fill Tool with No-Loss Schrader Chuck & Gauge for Shock Absorbers Compatible with Dirt Bike ATV UTV Honda Kawasaki Yamaha

Sejaede$121.543 rev

8mo ago

ENYSAON Nitrogen Shock Fill Kit with 700Psi Nitrogen Gauge and 10in High-Pressure Flexible Hose Nitrogen Regulator Shock Fill Tool No-Loss Schrader Chuck for ATV UTV Off-Road Bike Dirt Bike

ENYSAON$134.7510 rev

11mo ago

What buyers say about nitrogen shock fill kit

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall15%

“The build quality is excellent”

Ease Of Use11%

“easy to read for accurate monitoring”

Design-Overall9%

“it's a great design”

Value For Money8%

“for the price cant beat it”

Pressure6%

“it handled pressure without any issues”

Advertised Vs Actual Product6%

“worked better than expected”

Leak-Proof6%

“No leaks and no worries”

Functionality-Overall6%

“Works good”

Durability5%

“durable”

Strength4%

“nothing feels flimsy or loose”

What buyers complain about

Pressure24%

“Does not handle advertised pressure”

Leak-Proof22%

“Leaked really bad”

Quality-Overall14%

“I can get them locally so I will be replacing them with better quality units”

Instructions/User Manual/Troubleshooting6%

“No instructions to let you know this is required”

Measurement/Reading Accuracy6%

“The gauge portion wasn't long enough so you'd have to tilt the double gauge backwards so it could be threaded into bottle without interfering with the bottle valve knob”

Grip3%

“not happy with the t-handle”

Touch/Button Controls3%

“not happy with the t-handle”

Add-Ons/Attachments2%

“Only problem I have is this Schrader valve extension was not tapped correctly”

Size-Overall2%

“I was surprised that it was that small”

Defective Material/Parts2%

“a defective part”

Top return reasons

Leak-Proof21%

Size-Overall13%

Pressure9%

Functionality-Overall8%

Compatibility-Overall7%

Defective Material/Parts7%

Advertised Vs Actual Product5%

Shock Absorption5%

Value For Money4%

Measurement/Reading Accuracy3%

Common questions

Is nitrogen shock fill kit profitable to sell on Amazon United States?: The niche generates $81K/yr across 25 tracked products. 7 of 11 products launched in the last 360 days are still selling. 90-day search growth is -24.3%. Flapen's verdict: Skip it (37/100).
How competitive is the nitrogen shock fill kit niche?: 12 brands and 15 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 89% of demand.
What do buyers complain about in nitrogen shock fill kit?: Top complaints mined from reviews: Pressure, Leak-Proof, Quality-Overall. The return rate is 3.7%.
What does it cost to enter the nitrogen shock fill kit niche?: Listings span $15.08–$690.27; the average listing price is $128.44 (sweet spot $15–$100). The average incumbent carries 22 reviews — the moat a new listing must climb.