---
title: "80/100-21 Dirt Bike Tire — $40K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/80-100-21-dirt-bike-tire"
last_updated: "2026-08-09T11:36:12.340Z"
locale: en
meta:
description: "Niche score 39/100 · $40K/yr market · 23K searches/yr · $53.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $40K/yr market · 23K searches/yr · $53.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "80/100-21 Dirt Bike Tire — $40K/yr Amazon US Niche (2026) - Flapen"
---
# **80/100-21 dirt bike tire**
**Skip it**
Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size 10Growth 59Conversion 40Competition 13Returns 89Price range 77Avg price 92Brand share 7Review moat 56Quality gap 23
**Avg price**
**Great****$53.51**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Price range**
**Great****$16.23–$123.67**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+34.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****1,262.7**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.2%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****85%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$40K**
$40K/yr · 23K searches
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, 80/100-21 dirt bike tire is a $40K/yr Amazon United States market (23K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Mar–Apr–May. Verdict: Skip it — 39/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **80/100-21 dirt bike tire market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$40K–$54K**
- units × avg price
- **Conversion rate**
- **3.2%**
- **Avg BSR**
- **#20**
- **Page quality**
- **0%**
- **Prime**
- **50%**
- **Sponsored**
- **40%**
- **Out of stock**
- **8.4%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**42**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**85%**
Top 20: 100%
**Open market**
**0%**
- PIVOTRAX42% - TUSK34% - AR-PRO12% - GDHSWJ5% - DUNLOP4% - Kenda3% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — +34.1% search growth over the last 90 days.
700500Spike '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/automotive/80-100-21-dirt-bike-tire/trend)
## **Top 80/100-21 dirt bike tire 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.
0%15%$6K30%$12K45%$18K60%$24K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PIVOTRAX-90/90-21 or 80/100-21 (3.00 X 21) Heavy Duty Motorcycle Tube - 3mm Thick - TR4 Valve**PIVOTRAX**$26.32**4.6★2,101 rev](https://www.amazon.com/dp/B08FWB1JRH) [2**Tusk EMEX T-45 Front Tire 80/100x21 Intermediate/Hard Terrain Knobby Dirt Bike Tire for Motocross Trail and Off-Road Riding**TUSK**$53.61**4.8★138 rev](https://www.amazon.com/dp/B09SVNBSV9) [3**2.75/3.00-21 Replacement Inner Tube 80/100-21(300/325-21) with TR4 Staight Valve Stem Fits Motorcycle with 21 Tires (2-Pack) - Made from Heavy Duty Thick Premium Rubber**AR-PRO**$16.23**4.3★8,034 rev](https://www.amazon.com/dp/B07J1P4FM5) [4**Tusk Heavy Duty 2mm Motorcycle Inner Tube Butyl Rubber Upgraded Replacement Tube 80/10021**TUSK**$18.99**4.6★849 rev](https://www.amazon.com/dp/B09DR54XN9) [5**(2-Pack) 2.75/3.00-21 Inner Tubes 80/100-21 or 90/90-21 Heavy Duty Dirt Bike Inner Tubes 2mm Thick TR4 Valve Fits HondaAfrica Twin CRF230 CRF250 CR250 Kawasaki KLR KDX200 and More**GDHSWJ**$24.12**4.3★81 rev](https://www.amazon.com/dp/B0FK1YGPB7)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**(2-Pack) 2.75/3.00-21 Inner Tubes 80/100-21 or 90/90-21 Heavy Duty Dirt Bike Inner Tubes 2mm Thick TR4 Valve Fits HondaAfrica Twin CRF230 CRF250 CR250 Kawasaki KLR KDX200 and More**GDHSWJ**$24.12**81 rev11mo ago](https://www.amazon.com/dp/B0FK1YGPB7) [**Dunlop D952 Multi Terrain Tire 80/100x21 Black**DUNLOP**$65.98**48 rev3y ago](https://www.amazon.com/dp/B0C74QQTG6) [**Tusk Severe Duty 3mm Motorcycle Inner Tube 80/100x21 - Reinforced Butyl Rubber TR4 Valve Stem Heavy Duty Replacement**TUSK**$23.04**82 rev4y ago](https://www.amazon.com/dp/B09YK9RVPF) [**Tusk EMEX T-45 Front Tire 80/100x21 Intermediate/Hard Terrain Knobby Dirt Bike Tire for Motocross Trail and Off-Road Riding**TUSK**$53.61**138 rev4y ago](https://www.amazon.com/dp/B09SVNBSV9) [**Tusk EMEX T-35 Soft/Intermediate Terrain Dirt Bike Front and Rear Tire Set Front 80/100x21 & Rear 120/80x19 Deep Tread Off-Road Trail Tires Tube Type Motocross Motorcycle Tires**TUSK**$123.67**434 rev4y ago](https://www.amazon.com/dp/B09NXDLS66)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**PIVOTRAX-90/90-21 or 80/100-21 (3.00 X 21) Heavy Duty Motorcycle Tube - 3mm Thick - TR4 Valve**PIVOTRAX**$26.32**4.6★**▲ 38%**](https://www.amazon.com/dp/B08FWB1JRH) [**(2-Pack) 2.75/3.00-21 Inner Tubes 80/100-21 or 90/90-21 Heavy Duty Dirt Bike Inner Tubes 2mm Thick TR4 Valve Fits HondaAfrica Twin CRF230 CRF250 CR250 Kawasaki KLR KDX200 and More**GDHSWJ**$24.12**4.3★**▲ 36%**](https://www.amazon.com/dp/B0FK1YGPB7) [**Tusk Severe Duty 3mm Motorcycle Inner Tube 80/100x21 - Reinforced Butyl Rubber TR4 Valve Stem Heavy Duty Replacement**TUSK**$23.04**4.9★**▲ 29%**](https://www.amazon.com/dp/B09YK9RVPF) [**Tusk EMEX T-45 Front Tire 80/100x21 Intermediate/Hard Terrain Knobby Dirt Bike Tire for Motocross Trail and Off-Road Riding**TUSK**$53.61**4.8★**— 5%**](https://www.amazon.com/dp/B09SVNBSV9) [**2.75/3.00-21 Replacement Inner Tube 80/100-21(300/325-21) with TR4 Staight Valve Stem Fits Motorcycle with 21 Tires (2-Pack) - Made from Heavy Duty Thick Premium Rubber**AR-PRO**$16.23**4.3★**— 5%**](https://www.amazon.com/dp/B07J1P4FM5)
**~~View all trending →~~**
## **What buyers say about 80/100-21 dirt bike tire**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**18%
*“Fit perfect”*
**Value For Money**17%
*“Great value”*
**Quality-Overall**15%
*“Quality tube”*
**Thickness**12%
*“Nice thick tubes with sturdy stems”*
**Weight Heavy**7%
*“Heavy duty”*
**Advertised Vs Actual Product**7%
*“As described”*
**Strength**5%
*“very sturdy”*
**Wheel Quality**3%
*“Tire is awesome”*
**Leak-Proof**2%
*“Perfect size, no leakage right out the box so not defective in any way from shipper”*
**Ease Of Use**2%
*“Easy to pop”*
### **What buyers complain about **
**Quality-Overall**19%
*“COMPLETE TRASH”*
**Durability**19%
*“Product breaks IMMEDIATELY”*
**Thin**7%
*“thin feel”*
**Flatness**7%
*“Both went flat in 46 hours”*
**Assembly/Installation**7%
*“Didnt even get to install it”*
**Functionality-Overall**7%
*“Didnt hold air new”*
**Leak-Proof**6%
*“it started leaking at a seam behold a giant gash”*
**Weight Heavy**4%
*“Heavier than I thought”*
**Strength**3%
*“Fragile low quality a little touch & its popping”*
**Thickness**3%
*“Much thicker than what came on the bike”*
### **Top return reasons **
**Size-Overall**50%
**Leak-Proof**13%
**Advertised Vs Actual Product**5%
**Functionality-Overall**5%
**Defective Material/Parts**4%
**Weight Heavy**4%
**Thin**3%
**Assembly/Installation**2%
**Thickness**2%
**Inflation/Deflation**2%
## **Common questions**
- **Is 80/100-21 dirt bike tire profitable to sell on Amazon United States?**
- The niche generates $40K/yr across 10 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +34.1%. Flapen's verdict: Skip it (39/100).
- **How competitive is the 80/100-21 dirt bike tire niche?**
- 6 brands and 42 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in 80/100-21 dirt bike tire?**
- Top complaints mined from reviews: Quality-Overall, Durability, Thin. The return rate is 1.3%.
- **When does demand for 80/100-21 dirt bike tire peak?**
- Demand peaks in Mar–Apr–May; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the 80/100-21 dirt bike tire niche?**
- Listings span $16.23–$123.67; the average listing price is $53.51 (sweet spot $15–$100). The average incumbent carries 1,263 reviews — the moat a new listing must climb.
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