Dura-Ace FC-R9100 Bicycle Crankset - 172.5mm, 11-Speed, 50/34t, 110 Asymmetric BCD, Hollowtech II Spindle Interface

Specifications

• Number of Chainrings: Double - provides smooth gear changes for a better riding experience.
• Color: Black - a classic and sleek look.
• Crank Length (mm): 172.5 - ideal for efficient pedaling on the road.
• Pedal Spindle: 9/16' - standard size for easy compatibility.
• Crank Intended Use: Road - designed specifically for road cycling.
• Chainline/Hub Compatibility: Works well with 130 Hubs, 135/142 Road Disc Hubs < 415 mm Chainstay.
• Rings: 50/34 - suitable for various road terrains.
• Spindle Interface Type: Shimano Hollowtech II - offers reliable performance.
• Drivetrain Speeds: 11 - gives you plenty of options for different riding conditions.
• Defined Color: Black - stylish and practical.
• Chainring BCD: 110 Shimano Asymmetric - ensures proper chain engagement.
• BB Included: No - you can choose the bottom bracket that suits your needs.

Using your Dura - Ace FC - R9100 crankset is easy. First, make sure it's properly installed on your bike according to the manufacturer's instructions. When you're riding, shift gears smoothly to match the terrain. For flat roads, you can use the larger 50t chainring for faster speeds. On hills, switch to the 34t chainring to make pedaling easier. As for maintenance, keep your crankset clean by wiping it down after each ride. Check the bolts regularly to make sure they're tight. If you notice any unusual noises or problems with gear shifting, it's a good idea to have a professional bike mechanic take a look. Also, avoid using harsh chemicals when cleaning, as they could damage the finish. With proper care, your crankset will last you a long time and give you a great riding experience.