Yeti SB160 29" Bike

27.5", 29", or Mullet MTB wheels?

Published July 31, 2024 | Updated August 14, 2025

The mountain bike world is dominated by 27.5″ and 29″ wheels. Each size has strengths for going fast, turning easily, and handling different trails. You also have to consider mullet or mixed-wheel bikes, which have one of each size. So, what will help you reach your full riding potential? Keep reading to find out.

27.5″ Wheels: Agile Trail Performers

First up in this Battle Royale, we have 27.5″ wheels. They’re light and agile enough to slice through twisty trails, blast through corners, and navigate tree roots and rock gardens—things that are much more challenging for their larger rivals. With this maneuverability and rollover ability balance, 27.5″ wheels are the perfect choice for enduro and cross-country racers and for those who enjoy occasional downhill runs and bike park visits. This is the best size for short riders, but it can work for anyone. To summarize in one word: control.

Yeti SB135 27.5" Bike

29″ Wheels: Momentum Masters

Next are 29″ wheels charging into the arena. These large titans can crush obstacles of any size while keeping their momentum. More rubber means superior traction. They can grip the ground like their lives depend on it. A set of 29ers is favored by cross-country warriors and long-distance trail riders who need to be fast and efficient. If you dream of steamrolling the competition and excelling on any ground surface, these are the wheels for you.

A Yeti bike with 29" wheels.

MX Wheels: Best of Both Worlds

The last competitor is MX wheels also referred to as “Mullet”—a 29″ front wheel and a 27.5” in the back for a mix of benefits. You can speed up faster and get over rocks and logs of almost any size. Plus, you have better control on windy paths and are more stable on steep terrain. This is a great compromise if you can’t decide between the two wheel sizes.

Yeti SB165 MX Bike

The Choice Is Yours

Now that the dust has settled, it’s time to pick the winner. Go with the wheels that complement your riding style, preferred terrain, and physical attributes. Whether it’s a playful and agile 27.5″ set or the powerful and unstoppable 29ers, or maybe you want mixed wheels for mixed benefits, if you feel invincible on your rides, you’ve made the right choice!

Check Out the Different Wheel Sizes at Airpark Bike Co

At Airpark Bike Co, we have the best selection of 27.5″, 29″, and MX bikes. As you just read, each size has its unique benefits. You can decide what’s right for you here at our shop by taking a test ride around or renting from our enormous fleet of rentals. Then, you can shop our selection of nearly two dozen brands, including Yeti and Santa Cruz. We always have the best prices to save you hundreds, maybe even thousands of dollars. Cycling fun awaits at Airpark Bike Co!

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