Circa 1974, a renegade movement took place with freethinkers riding clunkers off road. This wild idea sparked in Crested Butte, Colo., and Marin County, Calif. Folks rode Schwinn paper-delivery bikes with balloon tires on the cow trails, up fire and mining roads in the mountains, and through the woods. Others Frankensteined bikes with parts pulled off single-speed junkers and 10-speed road bikes.
Those salvaged two-wheel creations were the earliest iteration of the modern mountain bike. Nearly 5 decades later, some mountain bike pioneers are still creating bikes today — but there are also so many more companies. Whether you’re just getting started or have been riding for a while, it can be overwhelming to narrow down the type of bike you need and the brand that’s a good match.
To help you get to know the products, mission, and background of the industry’s leading companies, we highlighted the top 15 in this guide. Beyond our passion for shredding trails and extensive product testing, we’ve chatted with countless peers, researched, and interviewed many of these companies firsthand. These brands are delivering a huge spectrum of the highest-quality, most affordable, and most progressive bikes for adventure today.
If you need a refresher on the types of mountain bikes that exist and how to pick the best one for you, jump to the bottom for our How To Buy a Mountain Bike guide.
The Best Mountain Bike Brands
Specialized

Specialized manages to push big innovation while continuing to deliver some of the longest-standing classic mountain bike models in the industry. Founded half a century ago, the brand created the Stumpjumper in 1981, the globe’s first mass-produced mountain bike.
Most recently, the brand pioneered the Turbo Levo SL, an ultralight electric mountain bike that blends the Stumpjumper with the Turbo Levo e-bike — and is 10 pounds lighter. The trimmed weight is thanks to the new SL motor battery system the team invented. Regardless of being electric, the bike is maneuverable and capable on the trails.
The brand also delivers gravel, road, and entry-level mountain bikes.
- Year founded: Early ’70s
- Headquarters: Morgan Hill, CA
- Company size: 1,350
- Popular models: Stumpjumper, Rockhopper (both of which we’ve owned)
Santa Cruz

- Year founded: 1993
- Headquarters: Santa Cruz, CA
- Company size: Unavailable
- Popular models: Hightower, 5010, Tallboy
Juliana

- Year founded: 1999
- Headquarters: Santa Cruz, CA
- Company size: Unavailable
- Popular models: Roubion, Furtado
Ibis Cycles

GT Bicycles

- Year founded: 1972
- Headquarters: Santa Ana, CA
- Company size: 1,200
- Popular models: Grade Carbon Pro
Trek Bikes

- Year founded: 1975
- Headquarters: Waterloo, WI
- Company size: 2,000
- Popular models: Marlin 5, Roscoe 8
Diamondback

- Year founded: 1977
- Headquarters: Kent, WA
- Company size: Unavailable
- Popular models: Release 5C, Atroz 2
Giant Bicycles

- Year founded: 1972
- Headquarters: Taichung, Taiwan
- Company size: 11,000
- Popular models: Talon, XTC Advanced
Salsa Cycles

- Year founded: 1994
- Headquarters: Bloomington, MN
- Company size: Unavailable
- Popular models: Horsethief, Warbird
Pivot Cycles

Yeti Cycles

Cannondale

- Year founded: 1971 (initially building the first-ever bicycle-towed trailer)
- Headquarters: Wilton, CT
- Company size: 207
- Popular models: Scalpel SE, Cujo 1
Liv Cycling

- Year founded: 2007
- Headquarters: Taichung, Taiwan
- Company size: 200
- Popular models: Pique Advanced Pro 29
Revel Bikes

- Year founded: 2019
- Headquarters: Carbondale, CO
- Company size: 11
- Popular models: Rascal 29er
Guerrilla Gravity

- Year founded: 2011
- Headquarters: Denver, CO
- Company size: 50
- Popular models: Trail Pistol, Gnarvana
How to Buy a Mountain Bike
Types of Mountain Bikes
Cross-Country
- Smoother singletrack
- Low technicality
- 80-120mm suspension
- 69-degree (or more) head-tube angle
Trail
- Uphill and downhill beginner singletrack, dirt roads
- Some roots, small drops
- 120-150mm suspension
- 66- to 68-degree head-tube angle
All-Mountain, Enduro
- Singletrack with uphill and downhill terrain
- Supports technical terrain like rocks and moderate landings
- 140-180mm suspension
- 65- to 67-degree head-tube angle
Downhill
- Descents on steep trails and riding bike parks
- Supports hitting jumps, sizable drops
- 170-250mm suspension
- Less than 65-degree head-tube angle
Electric Mountain Bike
- Includes electric assistance to amplify pedal power
- Allowed on designated trails only