"HEAVY DUTY" bicycle rim, model SC-RS-104, made in 16"/17"/18"/19" X 2.25"/2.50" and 23"/26" X 2" sizes. Like any wheel rim, it carries the tyre and anchors the spokes that run to the hub. The rim has a bright silver finish, a channelled profile with rolled edges and a row of spoke holes along the centre of the well. Spoke lengths (mm): 300 - 308, 300, 271 - 300, 251 - 270, 191 - 250, 171 - 190, 135 - 170 Catalogue code: SC-RS-104