Originally Posted by
BlazingPedals
I believe the chainline should be straight on the top
This would apply if the 'bent had no rear suspension - The Wally 'bent does. Therefore, to reduce pogoing, the drive side chainline needs to be as close to the swing arm pivot axis as possible - hence, the need for the drive side of the chain to be positioned on the bottom of the red idler.
The Wally 'bent pictured below, is the 'bent Randy Schlitter purchased (owner of RANS bikes) - notice the chain.
