Frog race bike upgrade tip
As my daughter gets older and taller, the frequency of changing bikes is getting more an more expensive. She has a Frog 70 double that is tall enough frame wise, but the 26" wheels, rubbish cantilever brakes and microshift 9 speed gears are an issue. I've managed to fit a Shimano Tiagra 4700 groupset (that I got very cheap) to the bike and some long drop brake callipers that mean the bike will now take full size wheels when the time comes. The standard rear wheel takes a 10 speed cassette allowing her to use an 11-34 cassette and a better range of gears. Much cheaper than shelling out for a XS adult bike giving the current rip off prices.