What groupset is this equivalent to?

[dac]

I've never come across the groupset that is on the bike in the below link.
http://claudbutler.co.uk/cycle-range/range/claud-butler-road-touring/cb5180-2015
Please can someone tell me what it equivalent to? Is it better than Claris, Sora, Tiagra, 105, etc..? Is it good and smooth?

I'm thinking about buying the bike (all in one bike) but will use mainly for road riding and would like it to be smooth. I just cannot find a review on the CX13 model.

 

[Drago]

It's not a full gruppo, but without checking part numbers against Shimanos catalogue it looks like the main bits are Tiagra. It's more or less old 105 5700 branded with the Tiagra name, and its very decent indeed to use.

 

[Milkfloat]

My understanding is that the 350 is similar to Sora and 460 similar to Tiagra.

 

[Drago]

It's a good step up from the Sora or Claris rear mech, as it's outer paralleogram alloy rather than pressed steel plate. A bit lighter, greater rigidity.

 

[accountantpete]

Shimano components with the R designation are OEM parts and are made to the roughly the same spec as the numbers that follow (3 = Sora, 4 = Tiagra etc) - they usually have Shimano lettering rather than Sora or Tiagra.