Suitable Stronger Front wheel for many 20" wheel models of Dahon/Tern or Bickerton that have a narrow 74mm Q-release hub. Built by Roland-Werke of Germany. Double wall Aluminium Rim, 36 Stainless steel spokes. Quick-release Dahon/Tern and Bickerton wheels of this type are usually only 20 spoke. Colour : Silver. Ideal tyre width for the rim is 20 x 1.50" - 2.1"