20x2.125 Bicycle Tube
FailPrices span $7.02–$14.99, mostly outside the sweet spot, so 20x2.125 Bicycle Tube is a Fail.
- Flapen Score
- 48 / 100Top 46% of 8,101 Sports & Outdoors niches · +1 vs the category median of 4748
- Market size
- $103K/yr40K searches / yr
- 90-day growth
- +56.1%search demand this quarter
- Competition
- 73%top-5 click share · 10 brands · 29 sellers
Flapen Score
20x2.125 Bicycle Tube against its category
The dotted line is the Sports & Outdoors average. Past it, 20x2.125 Bicycle Tube is stronger. Inside it, weaker.
Market
The 20x2.125 Bicycle Tube market on Amazon at a glance
Shoppers on Amazon United States searched for 20x2.125 Bicycle Tube 40K times last year and spent an estimated $103K. The top 5 brands take 86% of clicks. Demand peaks in Apr–May–Jun–Jul–Aug. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 24.2% of those searches ended in a purchase.
Shoppers searched for this 40K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 24.2% of those searches ended in a purchase. Searches in the last 90 days moved +56.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $103K a year.
- Searches, last 12 months
- 40K
- Growth, 90 days vs prior 90
- +56.1%
- Conversion, latest week
- 24.2%
- Market size, estimated
- $103Ka year
- Peak month
- July2.8× the quietest month
- Top search term
- 20x2.125 bike tube17K searches a year
02 · Price
A sale here is worth $10.75.
Listings sell for $10.75 on average, from $7.02 to $14.99. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 750 to 1,000 of them. At $10.75 that is $8K to $11K a year per listing.
- Average price
- $10.75under the $15 to $100 sweet spot
- Price range
- $7.02–$14.99
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- $8K–$11K
- Returns
- 1.1%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
79% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #54 within Tires & Tubes. It carries 11,289 reviews at 4.50 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 79%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #54in Tires & Tubes
- Average rating
- 4.50 starsAmazon United States average 4.42 stars
- Average reviews
- 11,289per listing
- Listings tracked
- 14
04 · Newcomers
2 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 55 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 55 months
Products
Top 20x2.125 Bicycle Tube products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Bell Standard Bicycle Inner Tube 20 x 1.75 - 2.125 Schrader Valve
- Price
- $7.63
- Rating
- 4.6/5
- Reviews
- 57,551
- Age
- 20y ago

2-PCS 20 Bike Tubes 20x1.75/2.125 Premium Butyl 20 Inch Bicycle Tube Compatible with Kids Road MTB City BMX Bike Inner Tubes Schrader Valve
- Price
- $10.16
- Rating
- 4.5/5
- Reviews
- 1,206
- Age
- 6y ago

Slime Extra Stong Self-Sealing Tube 20 x 1.5-2.125 Schrader
- Price
- $14.99
- Rating
- 4.4/5
- Reviews
- 38,692
- Age
- 5y ago

Hydencamm 2 Pack 20x1.75/2.125 Bike Tube 20x1.75 20x1.95 20x2.10 20x2.125 with 35mm Schrader Valve Butyl 20x1.95 Bike Tube with 2PCS Levers Compatible with MTB and Cruisers City Bikes Road Bikes
- Price
- $10.07
- Rating
- 4.3/5
- Reviews
- 163
- Age
- 1y ago

Heavy Duty Bike Tubes 2PCS 20x1.75 20x1.95 20x2.0 20x2.125 20x1 3/4 20x2 1/8 47/57-406 47-406 54-406 57-406 Schrader Valve Bicycle Inner Tubes (20x1.75/2.125)
- Price
- $9.95
- Rating
- 4.5/5
- Reviews
- 519
- Age
- 2y ago
Trending
estimated 90-day click momentum
JUCEO 20 Inch Bike Tubes 20x1.75/1.95/2.10/2.125 Butyl Bike Inner Tubes 2 Pack with 2 Tire Levers 35mm Schrader Valve Replacement Tube for BMX Mountain Cruiser & Electric Bikes Easy to Install
- Price
- $11.88
- Rating
- 4.6/5
- Reviews
- 74
- Age
- 5mo ago

Heavy Duty Bike Tubes 2PCS 20x1.75 20x1.95 20x2.0 20x2.125 20x1 3/4 20x2 1/8 47/57-406 47-406 54-406 57-406 Schrader Valve Bicycle Inner Tubes (20x1.75/2.125)
- Price
- $9.95
- Rating
- 4.5/5
- Reviews
- 519
- Age
- 2y ago

Slime Extra Stong Self-Sealing Tube 20 x 1.5-2.125 Schrader
- Price
- $14.99
- Rating
- 4.4/5
- Reviews
- 38,692
- Age
- 5y ago

Slime Extra Stong Self-Sealing Tube 20 x 1.75-2.3 Schrader
- Price
- $7.02
- Rating
- 4.4/5
- Reviews
- 38,692
- Age
- 22y ago

Hydencamm 2 Pack 20x1.75/2.125 Bike Tube 20x1.75 20x1.95 20x2.10 20x2.125 with 35mm Schrader Valve Butyl 20x1.95 Bike Tube with 2PCS Levers Compatible with MTB and Cruisers City Bikes Road Bikes
- Price
- $10.07
- Rating
- 4.3/5
- Reviews
- 163
- Age
- 1y ago
Newest
by launch date
JUCEO 20 Inch Bike Tubes 20x1.75/1.95/2.10/2.125 Butyl Bike Inner Tubes 2 Pack with 2 Tire Levers 35mm Schrader Valve Replacement Tube for BMX Mountain Cruiser & Electric Bikes Easy to Install
- Price
- $11.88
- Rating
- 4.6/5
- Reviews
- 74
- Age
- 5mo ago

PAKCHEF 20 Thicker Bike Inner Tube for 20x1.75 20x1.95 20x2.10 20x2.125 Bicycle Tire with 32 mm Schrader Valve - Heavy Duty Bike Tube for Road MTB Cruisers Bikes - Set of 2
- Price
- $10.89
- Rating
- 4.6/5
- Reviews
- 147
- Age
- 11mo ago

Hydencamm 2 Pack 20x1.75/2.125 Bike Tube 20x1.75 20x1.95 20x2.10 20x2.125 with 35mm Schrader Valve Butyl 20x1.95 Bike Tube with 2PCS Levers Compatible with MTB and Cruisers City Bikes Road Bikes
- Price
- $10.07
- Rating
- 4.3/5
- Reviews
- 163
- Age
- 1y ago

Heavy Duty Bike Tubes 2PCS 20x1.75 20x1.95 20x2.0 20x2.125 20x1 3/4 20x2 1/8 47/57-406 47-406 54-406 57-406 Schrader Valve Bicycle Inner Tubes (20x1.75/2.125)
- Price
- $9.95
- Rating
- 4.5/5
- Reviews
- 519
- Age
- 2y ago

FANSPRO 2 Pack of 20 Inch Bike Tube 20x1.75 20x1.95 20x2.10 20x2.125 Heavy Duty Bicycle Tube with 2 Tire Levers 32mm Schrader Valve Premium Quality Butyl Inner Tube
- Price
- $10.93
- Rating
- 4.6/5
- Reviews
- 363
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 73% of clicks. A locked shelf that new listings rarely crack.
Brands
10 rising
Sellers
29
Est. top-5 brand share
86%
Top 20: 100%
Est. top-5 click share
73%
Top 20: 100%
Open market
9%
- BELL29%
- YunSCM27%
- Slime15%
- Hydencamm11%
- DBXIIART5%
- Ultraverse4%
- Open — no brand owns it (4 brands, 9%)
Demand
20x2.125 Bicycle Tube search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 2.8×
Search terms
Top 20x2.125 Bicycle Tube search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 20x2.125 bike tube17K/yr
- 20x1.75 bike tube11K/yr
- 20 x 1.75 bike tube5K/yr
- 20x1.75/2.125 bike tube4K/yr
- bike tube 20 x 2.1253K/yr
Reviews and returns
What reviews say buyers love and hate about 20x2.125 Bicycle Tube
We read the reviews and the return reasons for every product selling here.
“Save your money for quality”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 20x2.125 Bicycle Tube questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









