RockyMounts Bike

Frequently Asked Questions

• Which RockyMounts hitch rack is best for carrying e‑bikes and heavier mountain bikes?

  Choose models rated for higher per‑bike weights like MonoRail (platform trays rated up to about 60 lbs per tray) or the Guiderail in its 2‑bike configuration; these designs spread weight on the hitch and handle heavier modern e‑bikes. Always add your bike’s total weight (including batteries) and confirm the rack’s per‑bike and total capacity and your vehicle’s hitch tongue weight before buying.
• How do I know whether to get a 1.25" or 2" RockyMounts shank and what adapters are needed?

  Measure your vehicle’s receiver opening (1.25" vs 2") and pick a matching shank—some MonoRail variants are made specifically for 1.25" receivers and aren’t compatible with add‑on accessories. For thru‑axles and different axle standards, RockyMounts offers adapters like the StreetRod family and thru‑axle skewers; check the rack’s listed axle compatibility (12x100, 15x100/110 Boost, etc.) before purchase.
• How does the MonoRail compare to the Guiderail and SplitRail LS?

  MonoRail is a platform‑style family that emphasizes high per‑tray capacity and broad bike compatibility, while Guiderail offers flexible tray layouts (including 3‑bike options) with slightly different per‑bike limits (e.g., 60 lbs on 2‑bike, lower in 3‑bike setups). The SplitRail LS adds integrated security features and a lower profile for tighter rear clearance; choose MonoRail for max load and bike range, Guiderail for multi‑bike flexibility, and SplitRail LS if integrated locking and compact stowage matter most.
• Can RockyMounts racks carry fat‑tire and long‑wheelbase bikes, and what measurements should I check?

  Yes, many RockyMounts platform racks accept tires up to about 5.0" and wheelbases in the mid‑30s to mid‑50s inches (commonly quoted ranges like 36"–56"), but you should measure your bike’s tire width and wheelbase against the specific model’s specs. If you have unusually long wheelbase e‑bikes or very wide fat tires, verify tray clearance and any required spacer/adapters before ordering.
• What security and anti‑rattle features come standard on RockyMounts hitch racks?

  RockyMounts builds in anti‑wobble hardware (3‑axis anti‑rattle systems or anti‑wobble pins/bolts), brass washers for smoother pivot action, and options for integrated locks or hidden cable locks (found on models like the SplitRail LS). Many racks also include through‑bolt attachment points and keyed locking cables or adapter‑compatible locks to secure wheels and the rack to your receiver.