Isn't it an 8t? Also, not a pulley, it's the electric motor drive sprocket! A whole different thing 😜 Also sprag clutches are spongy due to their design, the forces in the sprags are high and they deform quite a bit. And because of the leverage ratio that's very noticeable on the pedals. Kinda like the sponginess of the front brake vs. the rear brake (a longer hose in the rear takes up more lever throw to deform).