EC90 SL Crank Arms

CINCH Technology is a proprietary system by Race Face that allows you to easily attach and detach chainrings and spiders on your crankset without needing special tools. This means you can quickly switch between different gear setups to adapt to various riding conditions, making your cycling experience more versatile and convenient.

Direct Mount refers to a system where chainrings are attached directly to the crank arms, eliminating the need for additional components like a spider. This design simplifies the crankset, reduces weight, and can enhance performance, making it a popular choice for competitive cyclists looking to optimize their bike's efficiency.

The Bottom Bracket is a key component that connects the crankset to the bike frame, allowing the cranks to rotate smoothly. Different types of bottom brackets (like BB86, BSA, PF30) have specific designs and standards that can influence how well your crankset performs. Choosing the right BB ensures optimal power transfer and a smoother ride.

Q Factor is the distance between the outside edges of the crank arms. It affects your leg alignment while pedaling. A wider Q Factor can provide more stability, which is beneficial for downhill or aggressive riding, while a narrower Q Factor can improve pedaling efficiency and comfort, especially for long-distance rides.

Chainline refers to the alignment of the chain with the chainrings and rear sprockets. A proper chainline ensures that the chain runs straight, which reduces wear and improves shifting performance. Different chainline measurements (like 1x 47mm and 2x 45mm) indicate how the chainring is positioned relative to the bike's centerline, affecting overall drivetrain efficiency.

Yes! CINCH Technology allows for quick and tool-free changes between different chainrings and spiders on your crankset. This flexibility means you can easily adapt your gear setup for different terrains or riding styles, enhancing your overall cycling experience.