# Sportsmobile Promaster RB 110s

Promaster RB 110s is a class b floor plan by Sportsmobile.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 17 ft 9 in |
| Sleeps | 2 |

## Model years

2026. Year-specific specs: `https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/rb-110s?year={year}`

## Overview

A full bath gives the Sportsmobile Promaster RB 110s a practical edge, while the wool-lined interior, cork underlayment, radiant barrier foil, and insulated ceiling help keep the space comfortable across changing conditions. Flexible seating options can convert into beds, including twin beds that slide together into a Queen bed. A 2.7-cubic-foot 12V refrigerator, 10-gallon fresh-water tank, 3,000-watt inverter charger, AGM battery system, and solar controller support comfortable off-grid travel.

## Inventory

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Floor plan diagram: https://images.rvenvy.com/0049a0e05fc3ccfd3f6080d322fc8ac5d0679dfa373b39d3a53111a5ac77eb1f/1024.webp

Canonical page: https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/rb-110s