How much wider? 2.7-3.0in about covers it. They usually sit on wider rims too, 40-50mm internal width to allow the wider tyre to spread out properly and form the optimal shape. Those 27.5in Plus tyres near enough match up in external diameter to 29in tyres, which means some bike companies let you switch between the two wheel sizes.With French measurements and mountain bike tires, all you really need to know is that 650B = 27.5″ and 700C = 29″. There are French sizes for variants of the 26″ wheel; however, the most common 26″ wheel, which is denoted by 26×1.0, or 559mm BSD, does not have a designated French size. 26 vs. 27.5 vs. 29 bikes – How do they differ? 26” Mountain Bikes. Word has it that the 26 mountain bike is dead (or is dying). While the rise in sales for the 27.5/ 27.5+, and the 29er are on the rise, the truth is that the 26” isn’t completely dead yet as there still are a few of these mountain bikes around.
Loudestpipes. • 4 yr. ago. I'm 6'2" and have both 29er and 27.5 for my Scott Genious. The differences are exactly as you stated, however, I'd add that the 29er gives about 6 mm more ground clearance over the 27.5. For me, the add'l ground clearance yields less or no pedal strikes for the 29er. Although this is not a very big deal, when I have
Wheel size refers to the diameter of the wheel and is less important than the size of the frame. Mountain bike wheels come in three basic sizes: 26″, 27.5, and 29″. Very petite women may want a 26″ wheels but most will be best served by a 27.5″ or 29″ wheel. These two wheel sizes are becoming more common on modern mountain bikes, so