i put like 3000 miles on an s3x, i destroyed it because my brake broke at the beginning of an 80 mile dirt ride so i had to use backpedaling to slow down and brake. sheared the "dog something" (i forget what its actually called) tab right off the axle. i wouldnt recommend using it for sw8 fixay skidzzz

other than that it rocked

i contacted customer support and they warrantied the internals and a shifter which they said the older models might not have been indexed perfectly, 100% free which also rocked