The Tiagra cassette’s ratios are reported to be 11, 13, 15, 17, 19, 21, 23, 25, 28, 32 and 36 teeth. For 105, the equivalent ...

Ok, let's get this out of the way first: We don't usually (or ever) review groupsets. There are a few reasons for this--availability, novelty, and (quite frankly) interest. Also, not a ton of ...

Shimano has announced the release of 105 R7100, its first 12-speed mechanical road bike groupset. Pitched at an 'affordable' price of roughly £990/$1,190/€1,180, 105 R7100 mechanical costs around £740 ...

Shimano has officially unveiled the new 105 Di2 groupset, which comes with 12-speed wireless shifting technology. Previously only available in the Ultegra and Dura-Ace groupsets, Shimano has released ...