The Bike List

Groupsets: Shimano Claris 2400, 16 or 24 gears

Shimano's Claris 2400 groupset, first introduced in early 2013, is Shimano's replacement for their 2300 series groupset which was available on entry-level bikes between 2009 and 2013. Shimano's newer Claris 2400 groupset is common on road, flat-handlebar commuting, touring, cyclocross and hybrid/town bikes between £450 and £1000. The materials used throughout are a combination of aluminium and steel.

The road bike, dual-control integrated brake and gear levers allow you to operate both brakes and gears from the same position on the handlebars. The shifters also feature a gear indicator so you know which gear you're in and how many you have left in either direction. To shift down a gear (to a harder gear on the rear for example) you simply press the paddle located behind the brake lever. To shift up a gear (to an easier gear on the rear) requires the brake lever itself to be pressed inwards, which will also bring the paddle with it.

The groupset is available with compact (50-34) chainsets that provide 16 gears or in the form of a triple (50-39-30) that offers 24 gears. Claris is also available with a smaller 46-34 compact gear combination, also known as 'super compact', which is ideally suited to those new to cycling. The rear derailleur is designed to offer a wide gear range, which again is ideal for anyone new to cycling, and will accept cassettes with a large cog up to 32 teeth. Claris uses Shimano's Octalink bottom bracket standard (eight-spline interface between bottom bracket and crank arm) as opposed to the more rudimentary square-tapered design used on Shimano's 2300 chainset.

Shimano's Claris groupset is limited to 16 or 24 gears and because of this is not upward compatible with Shimano's next groupset 'Sora' which offers 18 and 27 gears, making upgrading more expensive.

Strengths: Good value, wide gear range available, gear indicator, durable, ideal for those new to cycling.

Weaknesses: Weight, number of gears, limited compatibility, gear cables protrude from side of levers.

Price bracket of bikes that feature 2300: £450 to £1000

Chainsets available: Compact (50-34), Super Compact (46-34) and Triple (50-39-30)

Colours: Silver or black

How many road bikes on The Bike List feature 2300 components or groupset? 4% of all road/racing bikes.

Cost to buy Claris 2400 aftermarket components:

  • Road 8-speed STI brake/gear levers: £120
  • Chainset: compact £70 (972g), triple £75 (Octalink)
  • Road brake callipers (rim brake) £20 each
  • Front derailleur: £18-£20
  • Rear derailleur: £25-£27
  • Hubs: front £12, rear £18
  • Cassette (HG50): £20
  • Octalink BB-ES25: £17 or BB-ES51: £37

Total cost of parts listed above: £340 - £369 (brake caliper x2).

Click here to see all bikes that feature a Shimano Claris 2400 groupset or parts.

What does Shimano Sora 3500 offer that Claris 2400 doesn't?

Aside from offering more gears, the Shimano Sora groupset as a whole is lighter than Claris 2400, improving the overall weight of any bike it features on. Sora gear shifters require less pressure on the levers making shifting slightly easier. Sora also uses Shimano's Hollowtech II bottom bracket standard that places the bearings on either end of the bottom bracket shell (the frame itself) allowing the use of a larger, stiffer spindle.

Next one up: Shimano Sora 3500 18 or 27 gears