IME 29 feels a wee bit faster and rolls over a few more things, but whether it’s more fun depends on what terrain you’re riding. What is more fun depends on your riding style and your local terrain/trails. There is no answer outside of that. I ran 2.8 27.5's for 2 years, and I'm back on 2.3 29's now. 29's seem to accelerate and brake faster
Mountain Bike Resources. 27.5 vs 29 inch wheels; 5 Things to Know When Shopping for a Mountain Bike; Essentials For Mountain Biking in Florida; Hardtail vs. Full Suspension; How to Choose a Mountain Bike; How to Set Up Your Mountain Bike with Tubeless Tires; Shimano vs SRAM: Mountain Bike Components; Top Five Mistakes Beginners Make on the Trail
Picking a 27.5 vs 29″ mountain bike depends mostly on where and how you want to ride. This article will explain the differences between the sizes, their pros and cons, and the type of riding where each of the MTB wheels performs best. A 29er mountain bike has relatively slimmer tires compared to its counterpart, with a 3.8″-5.2″ width of tires. To accommodate such wide tires, fat bikes have wider rims. Most mountain bikes have rims that measure up to 30mm wide, while fat bikes’ rims are 26” or 27.5” in diameter. The 27.5 inches mountain bike has a wheel diameter of about 698 mm and a rim diameter of 584 mm. After installing an outer tire, the wheel diameter of 29 inches mountain bike is about 736 mm, and the diameter of the rim is 622mm. 26 inches is the most traditional mountain bike wheel diameter. In general, 27.5 vs 29 MTB do their best in different conditions. While the 29er tends to perform better on smooth terrain and at higher speeds, 27.5-inch mountain bikes are more excellent in technical terrain and at lower speeds. Specifically, 29-inch wheels are larger and have a greater circumference, allowing them to maintain momentum and h1sq.