Motorhome
Manufacturer lists this application for the dedicated 2" rack; chassis-mount, configuration and RV-use restrictions apply.
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Manufacturer compatibility check
Küat Piston ION: RV compatibility
Heavy e-bike rack with explicit RV application support in the dedicated 2-inch configuration and a reduced 80 lb-per-bike RV limit.
Source checked 2026-09-14Independent summary
Manufacturer guidance by RV use
Fifth wheel
Manufacturer lists this application for the dedicated 2" rack; chassis-mount, configuration and RV-use restrictions apply.
Travel trailer
Manufacturer lists this application for the dedicated 2" rack; chassis-mount, configuration and RV-use restrictions apply.
Flat-towed vehicle
Manufacturer lists this application for the dedicated 2" rack; chassis-mount, configuration and RV-use restrictions apply.
Published limits we verified
RV bike limit80 lb per bike
Receiver2" chassis-mounted
Max tire4.8" (18–29" wheels)
Max wheelbase57" (18–29" wheels)
Road bike limit100 lb per bike
Conditions that can change the answer
- 2" chassis-mounted receiver required for RV use.
- 80 lb per bike in approved RV use.
- No hitch extender, hitch adapter or swing-away attachment in RV use.
- Use the original rack configuration; add-on rack attachments are not covered for RV use.
- Fender fit can reduce capacity and fitment.
Do not treat this as a safety certification. Your regional product version, vehicle, receiver, rack configuration, bike weights and current manufacturer instructions must all be within their own limits.
Manufacturer evidence
We manually normalize factual compatibility information from manufacturer sources. We do not reproduce product photography or substantial marketing copy.
Evidence market: U.S./North American manufacturer source/model variant unless otherwise stated. Regional instructions can differ.
Product source: Küat — Piston ION
Manufacturer warranty / RV guidance: open supporting guidance
Last checked: 2026-09-14