---
title: "Trend — gas cap - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/gas-cap/trend"
last_updated: "2026-08-11T04:46:34.881Z"
locale: en
meta:
  description: "Niche score 61/100 · $768K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 61/100 · $768K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — gas cap - Flapen"
---

# **gas cap**

**Worth a look**

Shows a fragmented shelf (top 5 take 24% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 71Growth 19Conversion 63Competition 91Returns 49Price range 73Avg price 43Brand share 70Review moat 53Quality gap 76

**Competition**

**Great****24%**

top-5 click share — an open shelf

**Quality gap**

**Great****4.3★**

avg incumbent rating — lower means beatable quality

**Price range**

**Good****$5.38–$40.50**

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

**Market size**

**Good****$768K**

$768K/yr · 1.2M searches

**Brand share**

**Good****63%**

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

**Conversion**

**Good****5.6%**

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

**Review moat**

**Good****1,378.32**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Okay****3.1%**

return rate — above 5% kills the launch gate

**Avg price**

**Okay****$11.19**

avg listing price — sweet spot $15–$100

**Growth**

**Bad****-11.3%**

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

## Trend