I need a 8/9 speed RD wiith a pulley to pulley length of 75mm and cannot find these specs on the Shimano site. Is these any place to find this info?

Does anyone know of a model off-hand with this dimension? It is for a trike and it needs to be long enough to suck up chain wrap but too long as to hit the ground when in the lower gears. might have to go th the lbs and start measuring.