The mango single speed is a fantastic piece of kit (so much so that we have 3 in the house!) The bikes are hard wearing and average a 100 mile week on various surfaces. The oldest bike is 3 and has been easy to maintain and service, it is now at Dundee uni being used for commuting. The individuality of designing your own means you have a bike that really 'pops'. The yellow single speed has even been used in a variety of triathlons around Scotland and the compliments do flow at these events. The lightweight frame means that I can get them on the roof bars easily even with me 5ft 1 height issues.