29er (bicycle) 29ers or two-niners are mountain bikes and hybrid bikes that are built to use 700c or 622 mm ISO (inside rim diameter) wheels, commonly called 29″ wheels. [1] Most mountain bikes once …

Oct 11, 2023 · A 29er mountain bike, simply put, is a bike equipped with 29-inch wheels front and back. This is the largest MTB wheel size, and it offers advantages in speed, stability, and comfort, making …

Is a 29er mountain bike for you? Learn the pros and cons of a bigger wheel size and how it will fit you.

Explore our 29-inch mountain bikes and find a fast-rolling, trail-crushing ride that will inspire tons of confidence.

Jun 6, 2025 · 29er MTBs In mud, on mountains, and on bumpy trails: 29-inch wheels are the top choice for mountain biking. They are stable, provide speed, and smooth out uneven terrain. You'll feel their …

May 18, 2023 · 29in mountain bike wheels, often referred to as 29ers, are a popular wheel size, offering higher rolling speeds and more stability than 26in and 27.5in wheels.

Use the Bike Finder to narrow your choices, compare models, and find the Trek that’s right for you. Trek 29er mountain bikes deliver big performance with more stability and better traction. Find more speed …

Mountain bikes with 29” wheels have become increasingly popular over recent years but are no new invention and were first introduced back in 1999 on race bikes.

Giant Bicycles' mountain bikes and accessories give you the speed and control you need to master any terrain. Shop our newest MTB bikes now.

We cover all the news on 29er, 69er, 650b and other big wheel sizes. We also offer ongoing sales of big wheeled mountain bikes and sometimes components.