Shimano GRX ST-RX610-L Shift/Brake Lever - Left 2x Black Model-Tetrarack M2 HD Tried and true C23 base

Tried and true C23 base with H29 profile is able to accomodate both wider gravel tires and more narrrow road tires

75" TT Abyss Green

The low-profile design with a deep concave shape allows your foot to “sit-in” the pedal and improves grip/comfort

30 Tire Diameter/ISO 27

while the 4-way stretch ensures a full range of motion

Shimano GRX ST-RX610-L Shift/Brake Lever - Left 2x Black Model-Tetrarack M2 HD Tried and true C23 baseThe Shimano GRX ST RX610 left dual control lever delivers light and responsive shifting for mixed terrain riding. The textured hood and anti slip brake lever surface increase control on bumpy terrain. 2x shifter with brake lever for use with GRX RX610 12 speed systems Gravel specific lever body ergonomics and anti slip lever coating provides greater control on mixed terrain Brake Lever Actuation Hydraulic Double or Triple Double Rotor Included No