The Shimano 105 FC - R7100 12 - speed crankset is a game - changer for road cycling. It strikes an ideal balance between light weight and high efficiency, all while maintaining excellent stiffness. Crafted with hollow aluminum technology, the crank arms are not only lightweight but also incredibly rigid and durable. The gloss black anodized finish gives it a sleek look and long - lasting protection. The unique resin ribs on the back of the chainrings are a Shimano 105 exclusive, reducing weight and enabling smooth, precise shifting. With a 44.5mm chainline, 148mm Q - factor, and compatibility with HG 12 - speed chains, this crankset is a top choice for road cyclists. Technical specs include a double 52/36 chainring setup, 170mm crank length, and a Shimano Hollowtech II spindle interface. It weighs 754 grams and doesn't come with a bottom bracket. The pedal spindle is 9/16', and it's compatible with 135/142 road disc hubs with a chainstay over 415mm.
Using this Shimano 105 FC - R7100 crankset is straightforward. First, make sure your bike is compatible with the crankset's specifications, like the spindle interface and chain compatibility. When installing, follow the manufacturer's instructions carefully. For normal use, shift gears smoothly and avoid sudden, forceful movements that could stress the chainrings or crank arms. As for maintenance, keep the crankset clean by wiping it down after rides, especially if you've been cycling in dirty or wet conditions. Check the chainrings regularly for wear and tear, and if you notice any damage, replace them promptly. Lubricate the moving parts periodically to ensure smooth operation. Store the bike in a dry place to prevent rust and corrosion. If you're unsure about any maintenance steps, consult a professional bike mechanic.
