---
title: "Trend — 18x8.50-8 tube - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/18x8-50-8-tube/trend"
last_updated: "2026-08-09T09:17:57.572Z"
locale: en
meta:
  description: "Niche score 60/100 · $44K/yr market · 13K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 60/100 · $44K/yr market · 13K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — 18x8.50-8 tube - Flapen"
---

# **18x8.50-8 tube**

**Worth a look**

Shows searches that convert (16.8% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 11Growth 94Conversion 98Competition 35Returns 68Price range 89Avg price 89Brand share 56Review moat 47Quality gap 55

**Conversion**

**Incredible****16.8%**

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

**Growth**

**Great****+107.9%**

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

**Avg price**

**Great****$20.68**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$14.25–$24.12**

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

**Returns**

**Good****2.3%**

return rate — above 5% kills the launch gate

**Brand share**

**Good****72%**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Okay****1,805.57**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Okay****64%**

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

**Market size**

**Bad****$44K**

$44K/yr · 13K searches

**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")

## Trend