Shimano GRX 810 11 Speed ShifterThis brilliant 11 speed model is ideal for use on rough roads, gravel and mud as it delivers top-level shifting performance. Featuring off-road inspired lever and bracket ergonomics, you'll benefit from greater mixed terrain control wherever the road takes you. Shimano has also fitted this version with an anti-slip brake lever which makes it perfect for braking in any weather conditions. Additionally, its easy to use design has been carefully sculpted for maximum grip and control, allowing you to maintain your momentum on challenging terrain.High-Performance 11 Speed ShifterFully-equipped with industry-leading technologies, you'll benefit from the same light shifting operation as top-tier systems but at an affordable price. The RX810 shifter's reach adjust technology allows you to customise its feel to suit your hand size, riding style and individual preferences. Raising the benchmark for gravel riding performance, its Servo Wave lever gives you superior braking actuation and control thanks to its fast action. Minimal effort is needed to control your ride due to its power multiplication factor which rapidly increases pad-to-rim contact.Features:  Use: Gravel, Road  Oil: Mineral oil  Speed: 11 speed  Reach Adjust: Tooled  Clamp Band Inner Diameter: 23.8-24.2mm  Shifter Type: Dual Control Lever Recommended Brake Caliper: BR-RX810  Anti-slip brake lever  Shimano Index System  Servo Wave ActionTechnologies:  Servo Wave Action: When you pull a Servo Wave brake lever, initial pad travel is fast, so little lever movement is needed to bring the pads into contact with the rotor. The power multiplication factor then increases rapidly at the pad-to-rim contact so more of the lever stroke is used to apply greater braking power with improved control.  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.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.