Shimano Tiagra 4703 Triple Chainring In Grey. The SHIMANO TIAGRA FC-4703 is a 3x10 speed chainset which uses 50-39-30T chainrings. Shimano brakes, gears, components and cycling accessories incorporate more than 45 years of cycling vigour built into each design; their experience and expertise make them the popular choice of the professional and amateur cyclist the world over.
