That’s because all mountain bikes came with standard 26 in. wheels. Then, along came two wheel sizes that have, for the most part, overtaken 26 in. wheels. First on the scene were 29 in. wheels (29ers), followed a few years later by 27.5 in. (also known as 650b) wheels. Mixed 29" and 27.5" wheel sizes, a.k.a. the Mullet, has become a big talking point in downhill and enduro MTB racing. This isn’t the first time the mountain bike industry has played with mixing wheel sizes. One of the big talking points in pro downhill and enduro racing has been wheel size. In the fall of 2018, the UCI relaxed rules stating Nimbus 29" Road - $430, frame has disk brake mounts. QU-AX Muni 27.5" - ~$300, only has rim brake mounts; under budget, so I'll probably get shorter cranks at the same time. Mad4One 27.5" Roadrunner - frame has disk mount option; over budget after shipping & reinforced sidewall option (~$470) The bikes are also said to include mechanical disc brakes, 100mm suspension forks, and internal cable routing. The 29er comes with 29×2.35″ tires. In another departure for the department store chain, the new line of mountain bikes will be offered in three sizes: small, medium, and large. As a general rule, the usage cases are: 26-inch – Pump track, dirt jump riding, kids’ MTBs. 27.5-inch – Experienced downhill riders and smaller riders (under 5’9″) 29-inch – Enduro, cross-country, trail riding, beginners, and taller riders 6’+. 15. Nukeproof. Horizon MTB Wheelset. View. 16. Hope. Fortus 30 SC Pro 5. Check Price. Based on variables like weight, stiffness, and rim width, a new set of the best mountain bike wheels will improve how your bike responds to various terrains and challenges. Long story short, I watched a lot of vids about hardtail vs fs, 27 vs 29, and figured a 27.5 would be an easier transition vs going straight to a 29. So that was my thought process. My buddy now rides a 29 Gorilla Gravity Smash and another rides a Stache 7. Because 29-inch wheels have a larger contact patch, they provide better grip (traction) compared to 27.5″ wheels. 29er mountain bikes ride smoothly over slippery objects such as roots, especially in wet conditions. 29er. They already have a better attack angle – the extra grip makes it even better on rough terrain. .

mountain bike 26 vs 27.5 vs 29