Fifth Wheel
Forest River RV Riverstone Reserve 3850rk
Compare specs across all model years (2021–2023)
3
Model Years
6
Sleeps
39' 7"
Length
17,263
Avg GVWR
Our Recommendation
Which Year Should You Buy?
2021 Riverstone Reserve 3850rk
Best Choice
Highest Mint Score (32.7).
What Changed Year-Over-Year
2022
2023
Length Increased
Length changed from 38' 5" to 39' 7".
2021
2022
Weight Reduction
GVWR dropped from 18,590 to 16,600 lbs (1,990 lbs lighter), improving towability.
All Model Years
2023
2023 Forest River RV Riverstone Reserve 3850rk
29.9
16,600 lbs GVWR
2,600 lbs Hitch
39' 7"
Sleeps 6
View Full Specs
Check Towing
2022
2022 Forest River RV Riverstone Reserve 3850rk
30.2
16,600 lbs GVWR
2,600 lbs Hitch
38' 5"
Sleeps 6
↓ 1,990 lbs lighter than 2021
View Full Specs
Check Towing
Best Value
2021
2021 Forest River RV Riverstone Reserve 3850rk
32.7
18,590 lbs GVWR
2,590 lbs Hitch
38' 5"
Sleeps 6
Original model year
View Full Specs
Check Towing
Can Your Vehicle Tow the Riverstone Reserve 3850rk?
Enter your truck specs to see if any of these model years fit your towing capacity—and which year gives you the most safety margin.
Tip: Click a year to see the full specs, tow guidance, and recommended gear for that model year.
Leave the Noise Behind.
Reconnect Outdoors.
Our mission is to help people make well-informed RV buying decisions, so they can leave the noise and screens behind, reconnect with family, and create unforgettable memories in the great outdoors.
Free tools. No sales pressure. Just better decisions.