when I was riding the TeamBow in the late 90s early 2000s they did what they are intended to do; brake. But BITD Formula and Corratec opted for a disc brakes when almost all other brands still relay on V's. Therefore dont expect todays disc performance, and over the years they tend not to get better. Also serviceability is not as easy as compared with modern disc brakes. Anyway there is a thread here dealing with Formula brakes. If you need I have the brakes manual which also covers service and maintainance.