Rim 19" Nimbus Dominator 2 Blk
Strong 19" Nimbus Dominator2 Black trials rim. Double walled construction with eyelets, made for 14 gauge spokes. 36 spoke holes. Compatible with 20 x 2.5inch trials tires. 42mm across. Comes in black finish.
Information on the spoke length for building a wheel can be found using Unicycle.com UK's Spoke Calculator.