Can the Thule Epos Be Used With a 2021 GMC Sierra 2500 W/ a 2.5" Receiver
Updated 01/19/2026 | Published 08/09/2024
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Question:
I have an HD truck with 2.5 inch hitch receiver. Will this bike rack with an 2 inch adapter? If so, does Thule recommend a specific adapter that’s works best with its “no wiggle” system?
asked by: Rich
Expert Reply:
Hey Rich, yes you can use the Thule Epos Bike Rack for 2 Bikes # TH99XE with your 2021 GMC Sierra 2500, you're just going to have to use a hitch reducer # BWRHXA2182.
This will reduce your 2.5" receiver to a 2" so the bike rack will fit. To make sure everything is nice and snug, I'd recommend also adding in the Roadmaster Quiet Hitch for 2-1/2" Trailer Hitches # RM-062 as well.
Product Page this Question was Asked From
Thule Epos Bike Rack for 2 Bikes - 1-1/4" and 2" Hitches - Wheel or Frame Mount
- Hitch Bike Racks
- Platform Rack
- Folding Rack
- Tilt-Away Rack
- Frame Mount
- Wheel Mount
- Bike and Hitch Lock
- 2 Bikes
- Class 1
- Class 2
- Class 3
- Fits 1-1/4 Inch Hitch
- Fits 1-1/4 and 2 Inch Hitch
- Fits 2 Inch Hitch
- Electric Bikes
- Heavy Bikes
- Thule
more information >
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on Hitch Bike Racks
Kate F.
1/19/2026
Hey Rich, how did the Thule Epos rack work out with the hitch reducer and Quiet Hitch on your Sierra? Your feedback could really help others trying to get a snug fit with a 2.5-inch receiver.