We were very excited to hear from the Mission Motors camp last spring when they approached us to help them manufacture several key components for the new Mission R bike. Not the least of which was the swing arm assembly.
The first component was the rear hub slider, mission had designed a very elegant solution for adjusting chain tension or adjusting swing arm length without effecting ride height. Most single sided swing arm hubs rely on an eccentric which is almost impossible to adjust chain tension without simultaneously changing the ride height and thus always chasing the perfect setup.
The Mission R swing arm assembly is two pieces that slide together on the same plane eliminating the ride height issue.
This is the rear Hub where the drive axle resides.
When we received the drawings for the swing arm we were very impressed with its svelte architecture and couldn’t wait to start cutting down the 80 lb. lump of aluminum and see it come to life.
After the first few operations the shapeless starts to have form.
The underside of this unique swing arm is filled with deep pockets designed to lighten the entire structure as well as add a significant amount of rigidity.
Mission shared this photo of the bike waiting patiently to receive her new swing Arm.