27 Inch Vs 27.5 Inch. So, what is the difference between the two? 27.5″ wheels offer a happy medium between the nimble handling of a 26″ wheel and the stability of a 29er. 27-inch wheels, on the other hand, are the standard size for mountain bikes. They offer good stability and traction but can feel a bit sluggish when compared to smaller #MTB #wheels #29erJersey Buying Link: I am trying to figure out what the biggest benefit differences are between these two sizes, I am 5'6'' and I enjoy riding frequently and I currently ride a 26er. Besides the obvious tire/rim size circumference. Whats the biggest pro or con? Am I too short to even consider one of these other The difference between a 25.5 and a 26.5 though is not that big and won't be a huge deal. The thing is though that thinner strings give a brighter tone than thicker ones. The difference between set of 9-42 and a set of 10-46 doesn't matter. There is almost no noticeable difference. But the difference between say a 64 gauge and a 74 gauge is Hmm, that actually might be true. I did some calculations using the volume of a torus as a model. 27.5x4.5 - With a major radius of 14 and minor radius of 2.2, the volume is 1337. 26x4.7 - With a major radius of 13.5 and minor radius of 2.3, the volume is 1410. 27.5x4.7 - 14 and 2.3, volume is 1462. The difference between the two is the same as any typical 29er vs 27.5 comparison. The rollover is better on the 29 but the extra width of the 27.5x2.8 allows me to lean over a bit more on the dry loose trails I ride and also punctures less in the rocks. I'd chose the 29er for general trail riding and the 27.5+ for more aggressive riding. ok, I am 43 and going to start riding trails again. I am loosing weightbut not skinny yet. I am trying to buy a bike. I am deciding between this CL 29er rolls better and rolls over objects more easily. 26er is more nimble. That's about it. Also 26 is more or less dying out (it has been replaced by 27.5). This means that right now parts are really cheap, but in a few years you may run into availability issues. Given that, a wider 26", say 4.8", will have a bigger contact patch than any 27.5. So for traction, 26" wins vs 27.5" as you can run bigger contact patches with 26" than what is possible with 27.5. Also, the wider the rim, the lower pressure you can run. Not sure how wide the widest 27.5" rim is, but 26"x100mm wide rims will allow for lower psi 26 inch BMX Bike Disadvantages. Compared with the 29-inch wheels, the 26-inch wheels don’t roll over obstacles well due to their smaller size. The 26-inch wheel is smaller and lighter than a 29 inch one. As a result, the inertia on the 26-inch reduces. It, therefore, rolls less than a 29-inch wheel. vydeyx.