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 12-speed cassette has 11, 12, 13, 14, 15, 17, 19, 21, 24, 28, 32 and ...

Shimano has launched an update to its Tiagra groupset, which sees it gain an extra speed, increasing the available gears ...

Shimano adds 13th cog in E-Tube app leak. Here's what it could mean for Shimano's road, mountain and gravel bike groupsets ...

Tiagra is now Shimano’s #2 mechanical option behind 105. Here’s what R4000 includes, what it costs, and who it leaves behind.

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 ...

Editor’s note: High Gear features outdoor sports gear, technology and innovations useful in the High Sierra and America’s West. Shifters and derailleurs have been the bane of my existence since I ...

Shimano has been playing catch-up to archrival SRAM since single-chainring drivetrains became the norm on modern mountain bikes. Simplicity, lower weights, and the ability to optimize rear-suspension ...