disc brake
Worth a lookShows a fragmented shelf (top 5 take 12% of clicks), but weak search conversion (1.8%) keeps it on the watch list.
Competition
Incredible12%top-5 click share — an open shelf
Avg price
Great$50.08avg listing price — sweet spot $15–$100
Price range
Good$4.76–$121.54cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good816.91avg incumbent reviews — the moat a new listing must climb
Market size
Good$333K$333K/yr · 380K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+13.5%90-day search growth — must beat 0% to launch
Brand share
Okay82%top-5 brand share — brands hold most of the demand
Returns
Bad6.3%return rate — above 6% kills the launch gate
Conversion
Bad1.8%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (12% combined) — an open shelf where new products get seen.Brands
26 rising
Sellers
140
Top-5 brand share
82%
Open market
15%
- Bosch30%
- Bendix21%
- ACDelco18%
- Raybestos8%
- Wagner4%
- DuraGo3%
- Open — no brand owns it (20 brands, 15%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 292 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
BOSCH 50011560 QuietCast Premium Disc Brake Rotor - Compatible with Select Lexus ES300h ES350; Pontiac Vibe; Toyota Camry; FRONT - Single
Bosch$53.764.7★200 rev
BOSCH 26011454 QuietCast Premium Disc Brake Rotor - Compatible with Select Acura MDX; Honda Odyssey Passport Pilot Ridgeline; FRONT - Single
Bosch$73.654.6★115 rev
BOSCH 50011479 QuietCast Premium Disc Brake Rotor - Compatible with Select Lexus NX200t NX300h RX350 RX450h; Toyota Highlander Sienna; FRONT - Single
Bosch$69.324.4★380 rev
Bendix Premium PRT5265 Rear Brake Rotor for select Cadillac Escalade Chevrolet Astro Silverado Chevy Suburban Tahoe GMC Safari Sierra Yukon XL (models with 325mm Rotors)
Bendix$48.974.4★1,620 rev
ACDelco Silver Rear Brake Rotor 18A1493A | GM 19261813 Brake Rotors for Select Ford Fusion Lincoln MKZ Zephyr Mazda Mercury and more
ACDelco$17.664.6★323 rev
Newest
by launch date
160mm Brake Disc Stainless Steel Rotor for Bicycle Brakes Ideal for Road and Mountain Bikes Cycling
HMPBEFU$10.0124 rev
Bendix Priority1 BCR6157 Coated Rear Brake Rotor compatible with Subaru Crosstrek 2023-2016 Forester 2018-2014 Impreza 2023-2012 XV Crosstrek 2015-2013
Bendix$30.0296 rev
Bendix Priority1 BCR5773 Coated Rear Brake Rotor for Acura TSX 2014-2009 Honda Accord 2012-2005 Accord 2014 Accord 2017
Bendix$27.3896 rev
Bendix Priority1 BCR5536 Coated Rear Brake Rotor for INFINITI G35 2005-2003; Nissan 350Z 2005-2003 Juke 2017-2014 LEAF 2023-2011 Rogue 2020-2008 Select 2015-2014 Sport 2022-2017 X-Trail 2006-2005
Bendix$31.6396 rev
Bendix Priority1 BCR6103 Coated Rear Brake Rotor for Dodge Durango 2020-2011 Jeep Grand Cherokee 2020-2011
Bendix$46.5096 rev
Trending
90-day click momentum
Bison Performance Rear Disc Brake Rotor - Compatible with 2011-2018 Ram 1500 2004-2009 Dodge Durango 2002-2010 Dodge Ram 1500 2019-2022 Ram 1500 Classic 2007-2009 Chrysler Aspen BPBD07007
Bison Performance$35.955.0★
Bison Performance Rear Disc Brake Rotor - Compatible with 2011-2018 Ram 1500 2004-2009 Dodge Durango 2002-2010 Dodge Ram 1500 2019-2022 Ram 1500 Classic 2007-2009 Chrysler Aspen BPBD07007X
Bison Performance$38.234.7★
Callahan Brake Parts Rear Brake Kit For Buick LaCrosse 2019 |Chevrolet Equinox 2018-21 |GMC Terrain 2021 - Disc Rotors with Ceramic Brake Pads + Hardware EBYK038642
Callahan BRAKE PARTS$74.304.8★
Bendix Priority1 BCR5536 Coated Rear Brake Rotor for INFINITI G35 2005-2003; Nissan 350Z 2005-2003 Juke 2017-2014 LEAF 2023-2011 Rogue 2020-2008 Select 2015-2014 Sport 2022-2017 X-Trail 2006-2005
Bendix$31.634.4★
Bendix Premium PRT5773 Rear Brake Rotor for Acura TSX 2014-2009 Honda Accord 2012-2005 Accord 2014 Accord 2017
Bendix$29.074.4★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +13.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“excellent hardware”
“Fits like it should”
“Good Value”
“Installed with no issues”
“Just as described”
“No break dust”
“They are quiet”
“should help prevent rust over time”
“Works great as a replacement for my stock macanical breaks on my tst r002”
“Real solid feel”
What buyers complain about
“Did not fit”
“Rust”
“blew up”
“how something like this could ever get past quality control dont ask me”
“Do Not Buy - Amazon Misrepresents Vehicle Compatibility”
“that are squeaky”
“False advertising”
“Thickness of disc”
“Don't waste your money thinking these are a good deal like I did”
“Damaged boxes and a chip missing out of the rotor”