Zone3 Silicon Swimming Cap (Oragne) Factor Bikes light+battery or maybe a battery

light+battery or maybe a battery and GoPro camera combo to record your journey

Compatible chain HG 8/7/6-speed Top-Normal spring type|Double servo ✔ Mount|Direct attachment (Conventional) ✔ Cable adjuster ✔ Max

front difference 16T Low sprocket|Max

the 10-51T cassette delivers advanced shifting performance

Battery: 1500mAh/3

Zone3 Silicon Swimming Cap (Oragne) Factor Bikes light+battery or maybe a batteryHigh quality 48g Silicone Swim Cap is designed to be comfortable, easy to put on and take off and not too tight or too loose. Features: 48g Silicone Swim Cap. Designed to be comfortable, easy to put on and take off and not too tight or too loose.