Blackburn Trainer Block

FEATURES of the Blackburn Trainer Block Compatible with most road and mountain bike wheel sizes Includes the diameter 26, 650b, 700c, 27.5 and 29 and widths from 23c up to 2.3 Integrated storage clamps in the trainer to store when not being used, but also includes a clever way to store your spare quick release skewer ? Raises your front wheel ? Fits 26", 27.5" 29", and 700c tires ? Integrated QR skewer storage (QR not included) ? Clamps in trainer for easy storage