RockyMounts
RockyMounts MonoRail
$549.99
Best Hitch Bike Racks · head-to-head
RockyMounts MonoRail vs 1UP-USA Super Duty Double
A sourced, side-by-side comparison. RockyMounts MonoRail is cheaper at $549.99. Every spec and price links to its source.
1UP-USA
1UP-USA Super Duty Double
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Which is better: the RockyMounts MonoRail or 1UP-USA Super Duty Double?
The RockyMounts MonoRail wins 2 of the 2 specs we compare head to head; the other wins 0.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | RockyMounts MonoRail | 1UP-USA Super Duty Double |
|---|---|---|
| US price | $549.99 | — |
| Brand | RockyMounts | 1UP-USA |
| Released | — | — |
| 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 |
Sources — RockyMounts MonoRail: rockymounts.com (verified 2026-07-11). 1UP-USA Super Duty Double: 1up-usa.com (verified 2026-07-11).
What's the difference between the RockyMounts MonoRail and 1UP-USA Super Duty Double?
Where the two actually differ on the specs we track (6 of 12). Matching specs are omitted.
- 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 true vs 1UP-USA Super Duty Double false
- Integrated lock: RockyMounts MonoRail true vs 1UP-USA Super Duty Double false
- Rack weight (lb): RockyMounts MonoRail 39 vs 1UP-USA Super Duty Double 64