RockyMounts MonoRail Solo 1-Bike Platform Hitch Rack
- 1 bike up to 60 lbs; 2 bikes up to 45 lbs each with Add-On
- 20 to 29 inch wheels, tires up to 5.0 inches
- 34 to 49 inch wheelbases
- Fits 1.25 and 2 inch hitches with sleeve
- Tilts 30 degrees for hatch access, folds flat
- 25 lbs rack weight
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light, frame-safe platform rack for one bike that expands to two and fits most wheel sizes, including fat bikes. It will not carry bikes with fenders.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B076WTCZD5Category: Car Bike Racks
Overview
RockyMounts built the MonoRail Solo to grab a bike by its front wheel, never touching the frame. It fits both common hitch sizes, tilts for hatch access and folds flat against the car when empty.
Riders get a light single-bike rack that grows to two with an add-on and handles fat tires. Bikes with fenders are not compatible.
Who it's for
Riders with heavy or delicate frames suit this rack. Fender-equipped bikes need a different design.
Pros and cons
- No frame contact
- Fits both hitch sizes
- Locks included, keyed alike
- Folds flat when empty
- Not for fender-equipped bikes
- Add-On sold separately
- Lower per-bike limit when expanded
Performance notes
The front wheel clamp holds the bike upright while the tray carries the weight, so frame shape does not matter. The anti-wobble bolt reduces sway in the hitch.
Specifications
| Brand | RockyMounts |
|---|---|
| Dimensions & fit | |
| Item weight | 25 lbs |
| Max tire width | 5.0 inches |
| Wheel size range | 20 to 29 inches |
| Capacity & performance | |
| Per bike capacity | 60 lbs (45 lbs each with Add-On) |
| Wheelbase range | 34 to 49 inches |
| Compatibility & installation | |
| Mounting Type | Hitch, 1.25 and 2 inch with adaptor sleeve and anti-wobble bolt |
| Other details | |
| Number of bikes | 1, expandable to 2 with Add-On |
| Additional features | Folds flat, tilts down 30 degrees |
| Security | Locking hitch pin, cable lock, lock pods, keyed alike |
Frequently asked questions
How do you keep the MonoRail Solo from wobbling?
Use the included anti-wobble bolt, plus the adaptor sleeve for 1.25 inch hitches.
Can the MonoRail Solo carry two bikes?
Yes, with the Add-On, carrying up to 45 lbs per bike.
Will it fit a bike with fenders?
No. It is not for use with fender equipped bicycles.