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Listing of wheel circumferences to help calibrate the speed of bicycle computers and motors. Includes dimensions for 700C, 26", 29er, and 650B tire sizes in millimeters. 


  1. For Schwalbe Big Apple Plus 20 x 2.15 (55-406) 
    diameter: 1620 mm 

  2. For Schwalbe Super Moto-X 27.5 (62-584): 2260mm