RockyMounts MonoRail 2 Bike Carrier
Secure, versatile hitch-mounted bike transport for road bikes, mountain bikes, and e-bikes.
The RockyMounts MonoRail 2 Bike Carrier is built for riders who want a strong, easy-to-use platform rack without frame contact. It secures bikes by the front wheel, making it a great choice for carbon frames, mountain bikes, road bikes, gravel bikes, and heavier e-bikes.
Available for both 2" hitch receivers and 1.25" Class II hitch receivers, the MonoRail delivers excellent flexibility for a wide range of vehicles.
Why Choose the MonoRail?
-
No Frame Contact
Secures bikes by the front wheel, helping protect carbon, aluminum, and specialty frames. -
E-Bike Ready
Carries up to 60 lbs per bike, 120 lbs total. -
Wide Bike Compatibility
Fits road tires up to 5" fat bike tires. -
Tilts for Rear Access
Tilts down 30 degrees for easier hatch or tailgate access. -
Folds Up When Not in Use
Folds flat against the vehicle for a cleaner profile. -
Security Included
Includes locking hitch bolt, cable lock, and keyed-alike lock pods. -
Stable Hitch Fit
Anti-wobble hitch pin helps reduce rack movement while driving.
Important Fitment Notes
- 2" Hitch Model: Fits Class III 2" receivers and can be expanded to 3 bikes with the MonoRail Add-On.
- 1.25" Hitch Model: Fits Class II 1.25" receivers only and is not compatible with the Add-On.
- Bike Fender Note: Not compatible with bikes equipped with fenders.
- Cargo Van Note: A fit check is recommended for cargo vans. Depending on hitch placement, handlebar width, or vehicle wheelbase, an 8" hitch extension may be required.
Note: The included cable lock should not be used while driving, as road vibration may cause damage to bike frames, rims, or rack components.
Specifications
- Bike Capacity: 2 bikes
- Weight Capacity: 60 lbs per bike, 120 lbs total
- Expandable: Yes, 2" model only, up to 3 bikes with Add-On
- Add-On Capacity: Up to 45 lbs on the third tray
- Tire Compatibility: Road tires up to 5" fat bike tires
- Wheel Size: 20" to 29"
- Wheelbase Range: 36" to 50"
- Rack Weight: 39 lbs
- Shipping Weight: 51 lbs
Cap-it Take
The MonoRail is a strong all-around choice for riders who need one rack to handle multiple bike styles. It is especially useful for households with a mix of road bikes, mountain bikes, gravel bikes, and e-bikes.
If you want a secure, easy-to-use hitch rack without touching the bike frame, this is one of RockyMounts’ most versatile options.

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