Shimano DEORE FC-MT520 crankset: 175 mm crank arms, 30-tooth chainring, Direct Mount, Boost compatible (24 mm axle), 12-speed. Lightweight design at 1.29 kg.
Shimano DEORE FC-MT520 – durable crankset for mountain bikes
The Shimano DEORE FC-MT520 crankset is a reliable drivetrain component for modern mountain bikes. It combines Direct Mount technology with 12-speed compatibility, making it ideal for trail and enduro riding.
175 mm crank arms with a 30-tooth chainring optimise gearing for challenging climbs.
Direct Mount interface allows tool-free chainring changes – perfect for quick adjustments on the trail.
Boost-compatible axle (24 mm) with 55 mm chainline provides ample clearance for wide tyres.
At 1.29 kg, the forged design noticeably reduces overall bike weight.
What sets the FC-MT520 apart
This crankset is built for demanding everyday use. Thanks to Direct Mount and 12-speed compatibility, it works efficiently with modern groupsets like Deore M6100. The forged construction ensures lasting stiffness.
Ideal for ambitious MTB riders
The FC-MT520 is aimed at mountain bikers seeking a reliable crankset with a Direct Mount interface. It suits bikes with a Boost rear end and 12-speed drivetrain, whether for daily trail riding or competitions.
Installation and compatibility
The crankset fits a bottom bracket with a 24 mm spindle (not included). The 55 mm chainline is optimised for Boost frames. The chainring bolts directly to the crank arm – no spider required. Ensure you choose the correct bottom bracket width for your frame.
Shimano is a Japanese bicycle component manufacturer headquartered in Sakai. Founded in 1921, it is one of the world's leading suppliers of drivetrain and brake components for bicycles. The Deore groupset is specifically designed for mountain bikes, offering a balanced mix of performance, durability, and affordability.
The FC-MT520 is a 1x crankset (30 teeth) from the Deore groupset, designed for mountain bikes with a 12-speed drivetrain and Boost standard.
The crankset is for 12-speed chains and works optimally with Shimano Deore M6100 and other 12-speed derailleurs. It requires a bottom bracket with a 24 mm bore, e.g., Shimano BB-MT501/MT800.
Crank arm length: 175 mm; chainring: 30 teeth; chainline: 55 mm; spindle diameter: 24 mm; attachment: Direct Mount; weight: approx. 1.29 kg; compatible with Boost width.
The package includes the complete crankset with chainring (30 teeth). The bottom bracket and pedals are sold separately.
Shimano provides 24 months of manufacturer's warranty against material and manufacturing defects. Wear parts such as chainrings are not covered.
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