I have not yet purchased anything from MTB Fitness but the advice and hints have been priceless for myself and my mate I ride with.We are both mid 50s and have recently become addicted to the great past time of mountain biking and wish we had been doing this sooner it has not only improved our health and fitness but has a huge impact on improving our mental health.Since we found this site and began following it is almost like he is on the whole experience with us, every hint seems to pop up just as we are experiencing exactly what it is about and it is what keeps us going and learning more about this great sport .hobby.Love it.