Our bomb proof 19" trials rim. This rim is built specifically for the rigorous demand a unicycle puts on a rim. Its the same rim as the double walled eyeleted alloy rim used on the Nimbus Trials unicycles. Compatible with 20 x 2.5inch trials tires. 42mm across.
Should you want to build the wheel, here is a link to the spoke calculator so you can find the correct spoke length you need.
Width Outside: 42mm
Width Inside: 32mm
Spoke Holes: 36
Beadseat Diameter: 387mm ERD: 356.5mm
Material: High Quality 6061 heat treated aluminum with box section Size:ISO 381mm Construction: Doublewall
Finish: Black anodizing with no braking surface
Nipple Eyelets: Stainless Steel