[Code of Federal Regulations] [Title 16, Volume 2] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 16CFR1512.11] [Page 561] TITLE 16--COMMERCIAL PRACTICES CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION PART 1512_REQUIREMENTS FOR BICYCLES--Table of Contents Subpart A_Regulations Sec. 1512.11 Requirements for wheels. (a) Spokes. There shall be no missing spokes. (b) Alignment. The wheel assembly shall be aligned such that no less than 1.6 mm (\1/16\ in.) clearance exists between the tire and fork or any frame member when the wheel is rotated to any position. (c) Rims. Rims shall retain the spokes and tire when side-loaded with 2000 N (450 lbf) and tested in accordance with the rim test, Sec. 1512.18(j). Sidewalk bicycles need not meet this requirement.