80/100-21 dirt bike tire
Skip itBrand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$53.51avg listing price — sweet spot $15–$100
Returns
Great1.3%return rate — above 5% kills the launch gate
Price range
Great$16.23–$123.67cheapest 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
Good1,262.7avg incumbent reviews — the moat a new listing must climb
Conversion
Okay3.2%search→purchase rate — share of searches ending in a sale
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad85%top-5 click share — a locked-up shelf
Market size
Bad$40K$40K/yr · 23K searches
Brand share
Bad97%top-5 brand share — brand-locked demand
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
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.Peak months: Mar, Apr, May · busiest ÷ quietest = 2.1×
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.
All 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
PIVOTRAX-90/90-21 or 80/100-21 (3.00 X 21) Heavy Duty Motorcycle Tube - 3mm Thick - TR4 Valve
PIVOTRAX$26.324.6★2,101 rev
Tusk EMEX T-45 Front Tire 80/100x21 Intermediate/Hard Terrain Knobby Dirt Bike Tire for Motocross Trail and Off-Road Riding
TUSK$53.614.8★138 rev
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$16.234.3★8,034 rev
Tusk Heavy Duty 2mm Motorcycle Inner Tube Butyl Rubber Upgraded Replacement Tube 80/10021
TUSK$18.994.6★849 rev
(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$24.124.3★81 rev
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$24.1281 rev
Dunlop D952 Multi Terrain Tire 80/100x21 Black
DUNLOP$65.9848 rev
Tusk Severe Duty 3mm Motorcycle Inner Tube 80/100x21 - Reinforced Butyl Rubber TR4 Valve Stem Heavy Duty Replacement
TUSK$23.0482 rev
Tusk EMEX T-45 Front Tire 80/100x21 Intermediate/Hard Terrain Knobby Dirt Bike Tire for Motocross Trail and Off-Road Riding
TUSK$53.61138 rev
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$123.67434 rev
Trending
90-day click momentumPIVOTRAX-90/90-21 or 80/100-21 (3.00 X 21) Heavy Duty Motorcycle Tube - 3mm Thick - TR4 Valve
PIVOTRAX$26.324.6★
(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$24.124.3★
Tusk Severe Duty 3mm Motorcycle Inner Tube 80/100x21 - Reinforced Butyl Rubber TR4 Valve Stem Heavy Duty Replacement
TUSK$23.044.9★
Tusk EMEX T-45 Front Tire 80/100x21 Intermediate/Hard Terrain Knobby Dirt Bike Tire for Motocross Trail and Off-Road Riding
TUSK$53.614.8★
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$16.234.3★
What buyers say about 80/100-21 dirt bike tire
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfect”
“Great value”
“Quality tube”
“Nice thick tubes with sturdy stems”
“Heavy duty”
“As described”
“very sturdy”
“Tire is awesome”
“Perfect size, no leakage right out the box so not defective in any way from shipper”
“Easy to pop”
What buyers complain about
“COMPLETE TRASH”
“Product breaks IMMEDIATELY”
“thin feel”
“Both went flat in 46 hours”
“Didnt even get to install it”
“Didnt hold air new”
“it started leaking at a seam behold a giant gash”
“Heavier than I thought”
“Fragile low quality a little touch & its popping”
“Much thicker than what came on the bike”
Top return reasons
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.