Any reason NOT to buy a Kuhn? Is the two speed gear box that is offered on other models something to definitely go with or steer clear of? JoeR: Posted 2/10/2016 19:22 (#5102435 - in reply to #5102408). Mostly kuhn knight mixers in this area because of dealer support. I think they may be better mixers but i cant complain at all. Had a 5127.. Thank you, Roverworks. I know the gearboxes with the cam actuated rake bars can be very expensive in the event of a failure. I am trying to avoid a purchase with a built-in design problem, if there is one. The double reduction Kuhn gearbox design on the GA 4120TH is very good and should be strong and durable.
Farmparts4less.com offers a wide variety of Kuhn disc mower parts to keep your equipment running smoothly and efficiently. Our selection includes blades, bearings, gearboxes, and more. All of our Kuhn disc mower parts are made to the highest quality standards and are designed to fit perfectly with your equipment.. The first patent for the MASTERDRIVE gearbox fitted to most KUHN rotary rakes was filed in 1994. KUHN has since continued to develop its concept in line with developments in agricultural practices. The MASTERDRIVE GIII gearbox, currently available on the market, has been designed to cope with greater stress on the drive chain..