12-speed 105 mechanical and new GRX | Everything we know so far about Shimano’s new groupsets
The BikeRadar Podcast
00:00
Shimano 105 TOSB1 Mechanical Shifter
Shimano 105 TOSB1 Mechanical is Shimano's top-level mechanical group set. Jura-A-Sort-Oltegra rivaling shift performance from previous generation, the mechanical generations he had previously. Simon Yates: I'd be disappointed if we didn't get similar shifting performance as I got on my Ultegrin derailer.
Transcript
Play full episode
