# RockyMounts MonoRail vs 1UP-USA Super Duty Double: specs and price compared

A sourced, side-by-side comparison of the RockyMounts MonoRail (RockyMounts) and 1UP-USA Super Duty Double (1UP-USA) among hitch bike racks.

## Side by side

| Spec | RockyMounts MonoRail | 1UP-USA Super Duty Double |
| --- | --- | --- |
| US price | $549.99 | not published |
| Brand | RockyMounts | 1UP-USA |
| Bike capacity | 2 | 2 |
| Rack style | platform | platform |
| Hitch size | 1.25 & 2 in | 2 in |
| Max bike weight (lb) | 60 | 100 |
| Max tire width (in) | 5 | 5 |
| Max wheelbase (in) | 50 | 58 |
| Frame contact | No | No |
| Fold flat | Yes | Yes |
| Tilt away | Yes | No |
| Integrated lock | Yes | No |
| Add on capable | Yes | Yes |
| Rack weight (lb) | 39 | 64 |

## Key differences

- Hitch size: RockyMounts MonoRail 1.25 & 2 in vs 1UP-USA Super Duty Double 2 in
- Max bike weight (lb): RockyMounts MonoRail 60 vs 1UP-USA Super Duty Double 100
- Max wheelbase (in): RockyMounts MonoRail 50 vs 1UP-USA Super Duty Double 58
- Tilt away: RockyMounts MonoRail Yes vs 1UP-USA Super Duty Double No
- Integrated lock: RockyMounts MonoRail Yes vs 1UP-USA Super Duty Double No
- Rack weight (lb): RockyMounts MonoRail 39 vs 1UP-USA Super Duty Double 64

## Sources

- RockyMounts MonoRail: https://rockymounts.com/products/monorail-hitch-bike-rack (rockymounts.com, verified 2026-07-11)
- 1UP-USA Super Duty Double: https://1up-usa.com/product/super-duty (1up-usa.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/hitch-bike-racks/rockymounts-monorail-vs-1up-usa-super-duty-double/
Cite: Per The Front Desk Review, RockyMounts MonoRail ($549.99) vs 1UP-USA Super Duty Double (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/hitch-bike-racks/rockymounts-monorail-vs-1up-usa-super-duty-double/
License: CC BY 4.0.