20" Inch Wheel and Tire fitment question, Ram Big Horn Wheels + Winter Tires

[narmstrong79]

2 Part question, for you great an knowledgeable people. I have access to a set of 5x139.7 bolt pattern (same a Rivian) 20 inch wheel off a Ram Big Horn.

My first questions is will these fit the Rivian without any spacers or adapters (Center bore, brake clearance) ?

Second Question: The tires are 275/60/20, which should be fine, but they are SL 115T speed and Load rated. Is this okay? Or are HL/XL the only option ?

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[ksurfier]

Some fit some don’t, I’m sure someone will chime in on what to look for. Those tires are not the min. spec required, but that hasn’t stopped a number of folks here from using them, if you are not towing/putting lots of people/gear than might be fine…

 

[narmstrong79]

Some fit some don’t, I’m sure someone will chime in on what to look for. Those tires are not the min. spec required, but that hasn’t stopped a number of folks here from using them, if you are not towing/putting lots of people/gear than might be fine…

Thanks, doesn't seem worth the risk I guess

 

[mikehmb]

They'll fit, but you'll want to get hub-centric rings to make sure weight isn't entirely on the lugs.

Not sure about offset, but there are plenty of people here who have run Ram-spec wheels without issue. If you can tell us the offset, that will help. FYI stock offset is +48. Less than that means they stick out a bit from the wheel arches.

 

[narmstrong79]

They'll fit, but you'll want to get hub-centric rings to make sure weight isn't entirely on the lugs.

Not sure about offset, but there are plenty of people here who have run Ram-spec wheels without issue. If you can tell us the offset, that will help. FYI stock offset is +48. Less than that means they stick out a bit from the wheel arches.

I believe the Ram is a 77.8mm center bore, so I would have to get a reducer.
I believe the offset is +17.1 mm to +21.1 mm based on what the internet tell me.

The tires on them are Nexen Snow Tires 275/60/20 115T SL (standard Load) - so I am not sure if they can handle the added PSI safely

I don't tow or haul a lot of heavy stuff.

It's a decent deal for a set of snow tires and wheel, but not sure it's worth the risk or hassle

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