27.5 vs 29er – A Full Breakdown and Comparison – Hobby Biker
27.5 vs. 29er Mountain Bikes | Switchback Travel
Amazon.com: 27.5 Tire
Amazon.com : Mountain Bike Wheelset 26/27.5/29 Inch, Aluminum Alloy Rim 32H Disc Brake MTB Wheelset, QR 1-1/2" Front Rear Wheels Black Bike Wheels, Fit 7-11 Speed Cassette Bicycle Wheelset : Sports & Outdoors
Less is more: why the 27.5 Plus standard is doomed - BikeRadar
Fat Bikes vs Plus Bikes - Mountain Biking Australia magazine