PROS REARWARD AXLE PATH

By using an idler to help decouple the drivetrain from the suspension layout, frame engineers can use a more rearward axle path, without the associated increase in chain growth and pedal kick-back. Rearward axle paths give the wheel more time to climb the face of the bump, and as the chainstay length increases as the suspension compresses this helps stabilise the bike. No one really discusses what happens as the wheel rebounds though, so maybe a more vertical axle path would be the ideal compromise.