Wolf Tooth B-RAD double bottle adapter (re-upload)

thingiverse

Update 2 Aug 18: A user brought to my attention that the previous post for this part was no longer available, so I reuploaded the files here. This adapter allows you to stack bottle or cargo cages side by side. Check out a bikepacking review at http://www.bikepacking.com/gear/wolf-tooth-b-rad/. For more information on this product, visit https://www.wolftoothcomponents.com/products/b-rad-double-bottle-cage-adapter. A machined and 3D printed version of the adapter are available. The STL file is only for 3D printing, while an assembly is provided for visualization purposes. After testing with the machined version, which has a tighter fit, I found that the bottle cages do not interfere with each other. The 3D printed version should have more room due to its looser tolerance. To assemble the 3D printed version, you will need: * 3 M5 x 0.8 bolts: one for securing to the frame and one per side/bottle cage * 2 M5 x 0.8 locknuts: 8 mm wide by 5 mm high The dimensions of the adapter were estimated using a reference image from Bikepacking.com. The 3D printed version is about 5 mm taller than the machined version to account for the height of the locknuts. The machined version would be threaded and therefore do not require locknuts. I assumed a nominal diameter of 3.93 mm for the M4 bolt in the picture to scale everything correctly. For reference, I consulted https://www.bmwclassicmotorcycles.com/parts/categorie-3/nieuws-4/, which provided helpful information on bolt diameters. I also referenced Mohammed AlMahasnah's bottle cage model on GrabCAD at https://grabcad.com/library/bicycle-bottle-cage-1 to check for interference between the cages. The pictures used in this post were taken from Wolf Tooth's website.