Shimano unveiled today, the trickling down of its hydraulic disc brake technology to its second tier Tiagra groupset.
Refer to by the Japanese component giant as its BR-RS405 brake system, Tiagra now shares many of the attributes as its biggest sibling’s hydraulic brake set-ups, such as flat-mount calipers and mechanical hydraulic shifting levers.
The new shift levers feature a every similar shape to the current 105 hydraulic lever, albeit designed for Tiagra’s 10-speed shifting.
According to Shimano, there’s a choice between 140mm and 160mm diameter rotors, which feature the brand’s existing Ice Technology, which is designed to dissipate heat and provide greater braking power.
“Shifting through Tiagra’s 10 gears with the combined gear and brake unit is ergonomically pleasing for multiple hand sizes thanks to the smooth surface of the hood and the enclosed mechanism within,” says Shimano.
“VIVID Index Shifting on the 10-speed shifting system equates to a light shifting effort with a defined click engagement, so you always know you’re in the right gear. Furthermore, the reach of the lever can be adjusted by up to 10mm, providing added comfort.”
Shimano says, the new Tiagra hydraulic disc brakes will be available starting in July, with pricing to follow.
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