If Shimano are known for one thing, it's world class components. Spanning across multiple tiered ranges, Shimano make the best quality components for cyclists of all levels. Starting with the entry level Shimano Tiagra, all the way up to the top-end Dura-Ace range, Shimano have a component set made for you.
Shimano Tiagra Components are the entry-level Shimano component bundle. If you're new to cycling, then chances are your bike will have a Tiagra set on it, if you've bought a second-hand bike as your first, and you want a new groupset, why not go for the budget choice of Tiagra? You'll be getting great quality and a trusted brand name, without the big price - just in case you're not sure if cycling's for you!
If you fancy stepping it up a notch, Shimano 105 could be the set for you. With integrated intermediate features and still not at a wallet-wasting price, the Shimano 105 offers a great balance between performance and affordability.
You'll find Shimano Ultegra components featured on the bikes of most serious cyclists and weekend warriors. Experienced enthusiasts will choose Ultegra for it's superior performance capabilities and notorious durability.
Dura-Ace are what you'll most likely be seeing at the Tour de France, Giro d'Italia and Vuelta Espana. Dura-Ace's built for pure performance, disregarding everything else in pursuit of that professional edge on race day.