My new exercise bike had a long narrow seat that I found uncomfortable and began rubbing and cutting into my nether regions after about 10 minutes of exercising. By installing this gel seat cover it made the original seat wider and much more comfortable. Hesitant originally on the correct size to order I measured. re-measured, read the reviews on how others found it and fitted to their respective machines. It was indeed a tight fit and secured easily. I can now comfortably do 30 minutes with ease. With padded bike shorts as well I have no doubt you could last quite a while without any rubbing or soreness. Super efficient delivery with a slip enclosed for a 12 month replacement warranty if registered.