105 105 ST-R7120-L Shift/Brake Lever BR-R7170 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount BLK

The Shimano 105 ST - R7120 - L Shift/Brake Lever paired with the BR - R7170 Hydraulic Disc Brake Caliper in sleek black is a top - notch choice for road cyclists. These Dual Control Levers have been designed with a revised lever position and bracket shape, using data from extensive hand - shape studies. This results in quick and intuitive shifting, just what you'd expect from Shimano 105. The BR - R7170 flat mount hydraulic disc brake system offers all - condition confidence, making it perfect for road bikes. The mechanical dual control lever has updated ergonomics, allowing for light shifting operation so you can focus on the road. Its blade shape shortens the lever access curve, fitting a wide range of hand sizes. You can customize your fit with the Reach Adjust feature. The BR - R7170 caliper is compact and light. It has a 10% wider pad clearance, reducing the chance of disc brake rotor rub and making wheel removal easy. The one - way bleeding feature simplifies maintenance. The set includes L05A - RF resin pads with a finned backplate to reduce heat build - up.

Using this Shimano 105 brake and shift system is a breeze. For shifting, just use your fingers on the lever as you normally would while riding. The light operation means you can change gears smoothly without much effort. When it comes to braking, squeeze the lever gently to slow down and firmly for a quick stop. Remember, the Reach Adjust feature is there to help you customize the fit according to your hand size, so take a bit of time to adjust it for maximum comfort. For maintenance, the one - way bleeding system makes it easy to keep the brakes in good condition. Regularly check the pad clearance to ensure it stays at the optimal 10% wider setting to prevent rotor rub. Also, keep an eye on the resin pads and replace them when they show significant wear. The finned backplate on the pads helps with heat reduction, but it's still a good idea to avoid excessive hard braking in one go to prevent overheating.