GMC, GMC Topkick Men's 26-Inch Mens Dual-Suspension Mountain Bike All Mountain Bikes >>> Mountain Bikes by GMC More details and ordering info. User input on GMC Topkick Men's 26-Inch Mens Dual-Suspension Mountain Bike by GMC: Mikie: Don't bother with this bike. It's nice that the seat height is adjustable, but the handle bars are NOT. So if you are six feet tall like me, you end up leaning too far forward. Also there is a sqweak and ginding noice coming from the rear disk brake that I can not get rid of. If I adjust the pads far enough out so they don't sqweak, the lever goes right to the handle bar and I get no breaking. Over all, very disappointed with this bike. Submit Input: Your Name: Write or Paste Input here: Upload picture:      Review Guidelines