“We don’t need no badges”
Joined: Sep 2019
Posts: 2,602
Likes: 1,626
From: SF Bay Area
Bikes: 1981 Holdsworth Special, 1993 C-dale MT3000 & 1996 F700CAD3, 2018 & 2019 Cervelo R3’s & 2022 R5, JustGo Runt, Ridley Oval, Kickr Bike 8-)
The stock tube that is the attachment to the vehicle is 2”.
Taking into account the 1/8” wall thickness, the internal dimension is 1.75” x 1.75”
The 2 bike extension is the same sized 2” tubing.
To join the two half’s together it has a length of 1.75x1.75 welded into it.
It is this joiner that slips into the rack and is held in with two large bolts.
If you choose to use a thicker walled tubing, the joiner will not slip in.
Barry
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