Shimano GRX Di2 ST-RX815 11 Speed Shifter

Technologies

Di2 – The revolutionary DI2 shifting system solves the challenges drivetrains present to the power-delivery equation in cycling. DI2 gives you instant, accurate, lighting-fast shifts the first and every time, at the push of a button. Even in the most extreme conditions, shifting is precise and controlled. You can change gear even under heavy load while climbing or accelerating. With DI2, you are in complete control.

E-Tube – The E-TUBE platform’s “Plug & play” and D-FLY wireless connections make it easier than ever to check the system’s status, and apply customized settings to DI2 and Shimano STEPS components with a PC, tablet or smart phone.

Shimano Electronic Intelligent System (SEIS) – A technological innovation of the computerized shifting system based on the DI2 concept with which is called, the SEIS.

Reach Adjust – Brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.

Features

Raised hood head prevents hand misalignment and slippage
Recessed finger notch prevents upward slipping
Anti-slip texture and brake lever coating
Improved braking input performance
Higher brake lever axis and curved brake lever
Improved grip and confidence on choppy surfaces and descents
Higher braking efficiency reduces fatigue on long rides
Series Overview

Specifications