# Sportsmobile Express RB 115s

Express RB 115s is a class b floor plan by Sportsmobile.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 18 ft 8 in |
| Sleeps | 2 |

## Model years

2026. Year-specific specs: `https://rvenvy.com/class-b-motorhomes/sportsmobile/express/rb-115s?year={year}`

## Overview

The Sportsmobile Express RB 115s takes insulation seriously in a way most Class B vans don't. Wool-lined walls, doors, and ceilings provide natural soundproofing and zero outgassing, while radiant barrier foil and arctic insulating panels on the windshield and doors mean you're genuinely prepared for temperature extremes rather than just hoping for mild weather. The galley is self-contained and capable, pairing a Norcold 12V refrigerator with a 10-gallon fresh water tank, on-demand water pump, and city water hookup. Power is equally well thought out, with a 3,000-watt true sine inverter, a 200Ah AGM battery system, and a Bluetooth-connected MPPT solar controller that lets you monitor everything remotely. Seating and sleeping configurations, including dinettes, gauchos, and couch-plus-ottoman arrangements, are flexible enough to be customized to your length preference, so the layout really does work around how you travel rather than the other way around.

## Inventory

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Floor plan diagram: https://images.rvenvy.com/fffa2f7a41daf0198b8e8326525fb347accdbe83abf524f56e72cf3903090ce0/1024.webp

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