# 套件等级

从上到下，价格逐渐便宜。

DURA-ACE是顶级竞赛级，Ultegra称为专业训练级，105是专业入门级，TIAGRA是业余级别，SORA是娱乐级，Claris算是入门娱乐级

• Shimano Dura-Ace 9150 Di2
• Shimano Dura-Ace 9100
• Shimano Ultegra R8000
• Shimano Ultegra R8050 Di2
• Shimano Ultegra 6870 Di2
• Shimano Ultegra 6800
• Shimano 105 R7000
• Shimano 105 5800
• Shimano Tiagra
• Shimano Sora
• Shimano Claris

# Shimano Dura-Ace 9150 Di2

旗舰，电变。支持碟刹，内置集成功率计。支持同步半同步变速。

# Shimano Dura-Ace 9100

机械版本，对应Dura-Ace 9150 Di2

# Shimano Ultegra and SL

买不起dura-ace，用ultegra，dura-ace的技术ultegra基本都有。

Both groups are for racing or lightweight riding, the top guys might use Shimano Dura-Ace, but if you look at the lower Pro teams and many amateurs, you will see that they mostly use Shimano Ultegra.

The difference between the Ultegra and the Ultegra SL is the ice grey finish and 100 grams lighter, nothing else. If you want to race or enjoy some fast riding then the Shimano group is exactly what you want.

# Shimano 105

The 105 group set is adequate for mostly anything, it’s light and it works very well, functional and looks good, you don’t need much more than that, unless you want to race, then you need something a little lighter and you will have to spend a bit more on the better group sets.

The Shimano 105 group is hard wearing, it should last you a good length of time, it’s good for your training bike or work bike that you want to ride at the weekend or tour with. A good basic group set that won’t let you down.

# Shimano Tiagra

Tiagra has long been the gearing of choice for sub £1k road bikes. Tiagra comes in 8, 9 and 10 speed (the addition of 10 speed came in 2012), and is available in double, triple and compact options.

Designed for entry level riders, Tiagra still offers crisp and sharp gear changes, and is robust enough to survive years of commuting, and tough sportives.

# Shimano Sora

Fitted on the high majority of bikes in the £600 to £850 range, Sora groupsets have come on in leaps and bounds in recent years.

What was once an 8 speed shifting system which used a lever to swipe to a bigger cog and a button to shift to a smaller cog, is now a 9 speed system with dual control. Dual control also features on the lower spec Claris, and just means all the shifting comes from the levers – which is simpler to use.

The Sora groupset can come in a compact or triple chainring configuration, and cassettes available range from a 14-25, through to the 11-32 which will have you sorted on a hilly ride.

Reach on the levers can be adjusted with extra spacers, and the entire system is painted in black.

# Shimano Claris

Claris is 8 speed and comes in various configurations, with compact and triple options available. The range includes everything from shifters (shaped as per the next step up, Tiagra), to hubs and brake callipers. Shimano hope this will encourage bike manufacturers to spec a bike with the full Claris range, rather than swapping out components such as brakes for cheaper options.