Oh good grief. Rollers never wear out, even poly drums. The belt should be good for decades. You don't need the fork support. The front roller can be moved to accommodate frames of different lengths, from large road bikes to small MTB bikes. Rollers are fun. They're quiet, but compared to what? You need smooth tires for rollers or a trainer. On this roller set, there is no resistance, just the rolling resistance of your tires, so just use a big gear.