# Sportsmobile Promaster RB 164s

Promaster RB 164s is a class b floor plan by Sportsmobile.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 17 ft 9 in |
| Sleeps | 2 |
| GVWR | 8,550 lbs |
| MSRP | $43,465 |

## Model years

2026. Year-specific specs: `https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/rb-164s?year={year}`

## Overview

The Sportsmobile Promaster RB 164s squeezes a full bath into a compact 18-foot Class B footprint, which is a rare find at this size. The ProMaster's boxy, upright interior gives Sportsmobile more usable conversion space than many rivals, and the front-wheel-drive layout earns consistent praise from owners for its tight turning radius and everyday driving ease. The cab comes well-equipped with swivel seats, a 10.1-inch display, surround-view camera system, GPS nav, and remote start standard, and options like adaptive cruise control and heated seats make longer stretches genuinely comfortable. Owners of ProMaster-based builds frequently report solid long-term reliability, making the Sportsmobile Promaster RB 164s a practical choice for two-person travel without the bulk of a larger rig.

## Inventory

No units currently for sale. Search similar inventory: https://rvenvy.com/inventory

Floor plan diagram: https://images.rvenvy.com/5a9cea77f8d86fb44ba57dc2c4eddb5799f1fc4aa3478222282477be63bc9bb3/1024.webp

Canonical page: https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/rb-164s