I was trying out my latest project, locked it in 4H, and got into an awful bind, and I said to myself....."I'll bet this thing has 2 different gears in it", so, the front end looked as if it had never been into (still had a 3.54 tag), I tore the rear end out today, AND IT HAD A %*#@ 4.57 IN THERE!! (32 ring, 7 pinion=4.57) It's a wonder someone didn't blow the D20 up!! Good thing those are bulletproof. Anyway, I have a good mind to call the jackass I got it from!!