Mountain Bikes Slower top speed when compared to 29ers, even though they’re faster than 26 bikes. Consider a 29-inch mountain bike if: You need more traction and smoother performance on rough trails. You prefer longer, high-speed rides with fewer interruptions.So who should consider buying a 29er mountain bike? Here’s what they’re best for: Technical climbs – With a more favorable angle of attack, 29 inch wheels need less momentum to roll over obstacles. On steeper climbs, you’re more likely to have low speed and momentum as you encounter technical features.Just in case these terms are new to you, I will give you a quick definition for a 26er and 29er. A 26er is a Mountain Bike with 26-inch wheels. Similarly, a 29er is a Mountain Bike with 29-inch wheels.Due to their smaller size, 26-inch wheels are good for mountain biking, gravel biking, and technical trail riding. They offer improved maneuverability and quicker acceleration. Their lower rolling resistance and stronger build make them ideal for rough terrain, allowing for better control and agility.