Growtac GT-ROLLER FLEX3 Cycle Trainer Roller Stand Used for about a year on rainy and cold days. Haven't used it for about a year. There are minor scratches and dirt from use, but the load operation is fine and you can still use it. Modified to 12mm thru-axle specification. * The support part will be removed for shipping, so please assemble it yourself. Growtac GT-Roller Brand: -