UCRS frame walls mount to the 5050 Core 2.0 aluminum frame system. The Core, wheels and any skates pictured are not included with purchase. The UCRS 58-58 is designed to ride eight 58mm wheels flat or with a slight 0.5mm rocker with excellent wheel bite protection and a groove that requires no break in. UCRS frame walls and H-blocks are 3D printed on demand in PLA + filament. They feature a dovetailed H-block that can be replaced or printed in other materials by yourself or 3rd party printers such as Shapeways. H-block 3D files are free to download. If you selected custom colors, please remember to choose colors available in Esun PLA + filament and write the colors in your order form. UCRS is a one man and one 3D printer operation and 3D printing is a slow process. Depending on order volume and availability of custom colors, expect up to 3 weeks from your order being placed before it will be shipped.  Purchases can be made in Monero, Zcash, Bitcoin, or credit card. Shipping discount for all purchases with cryptocurrency. List of ESUN PLA+ colors

SKU: N/A Category:
Weight 1.6 lbs
8mm frame spacers

8mm aluminum frame spacers, no frame spacers

core axles

10 core axles, 2 core axles for H-blocks

frame wall color

black, custom color, white

H-block color

black, custom color, white


0.5mm rocker, Flat, no rocker


Large 270mm, Medium 250mm