Model · Tiffin
Tiffin Allegro Bay
The Allegro Bay is Tiffin's Super C motorhome, built on a Freightliner S2RV truck chassis with a 360-horsepower Cummins diesel. Tiffin's online brochure library shows it from the 2022 model year. Most floorplans are about 39 feet long, and a shorter 34 DB was added for 2026.
Photo: Transwest · All rights reserved (brand photo)
About this model
The earliest Allegro Bay Super C brochure in Tiffin's online library is for 2022. It lists two floorplans, the 38 AB and 38 BB, on a Freightliner S2RV chassis with a 360-horsepower Cummins engine and a 150-gallon fresh water tank.
The 2024 and 2025 documents add a third 39-foot floorplan, the 38 CB. For 2026 the 38 CB is gone and a shorter 34 DB is marked new. The 2027 sheet adds the 38 EB and lists a nine-speed Allison transmission in place of the six-speed.
The Allegro Bay name is older than the Super C: Tiffin's 2009 Allegro Bus brochure already lists Allegro Bay among the company's trademarks. The earlier use of the name was not researched for this file.