Shimano FC-RS520 12 Speed Chainset 50/34T, 165mm

Shimano FC-RS520 12 Speed Chainset 50/34T

• Lightweight 12-speed 2-piece design chainset

• Innovative forged and anodised aluminium crank arms for minimum flex

• The chainring teeth have been developed to work in conjunction with 12-speed chains for increased contact to provide greater efficiency and improved power transfer

• 2-piece design bottom bracket bearings to be spaced wider apart, enabling the use of larger bearings and an increased axle diameter

• Can be used with Shimano external or press-fit bottom brackets

• Available in 165, 170, 172.5 and 175mm crank length

• The system allows for easier installation, adjustment, and maintenance

• Lightweight anodised aluminium chainrings for smooth and precise shifting

The Shimano FC-RS520 is a 2-piece chainset with a 24mm spinde and features 2x12 speed 50/34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames.

The FC-RS520 chainset is compatible with all 12 speed road front derailleurs, this includes the models listed below:

• Dura Ace FD-R9250 / Ultegra FD-R8150 / 105 FD-R7150