Yamaha Rhino R1 SXS / UTV we build, we found the RPM gear box to work incredible well under all riding conditions. The RPM gear box is the most economical gear box reduction units for small to medium sized, two and four seated off road buggies. The RPM gear box offers a forward, neutral and reverse, which is not common in off road gear boxes. Depending upon the off road usage, we feature the Yamaha Rhino R1 SXS / UTV with a gear ratio of 4.75 to 5.5 to 1. The RPM gear boxes are mounted into our Yamaha Rhino R1 SXS/UTV using custom mounting brackets and four custom turn buckles to help aid in adjusting the chain with little to no effort. This makes it very easy to make the adjustments on the fly. Also the RPM gear box also comes with a race inspired braking system. Please visit our website at http://r1sxs.com