Shimano FC-RS520 Crankset

Road crankset for 12-speed with 4-arm design This 2-piece crank uses an outboard, 24 mm bottom bracket and features 2×12 speed 50-34T chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames.

Features:

Affordable and high-end style crankset:
– 4-arm crankset for 12-speed drivetrain
– Compatible with frames of O.L.D. 135 mm and 410 mm chainstay length
– 2-Piece Crankset

Specifications:

– Threaded bottom bracket shell width (mm)_70: Yes
– 2-PIECE CRANKSET: Yes
– Chainring combination: 50-34T
– Compatible bottom bracket type_Outboard: Yes
– Crank fixing screw included: yes
– Crank arm length (mm)_165: yes
– Crank arm length (mm)_170: yes
– Crank arm length (mm)_172.5: yes
– Crank arm length (mm)_175: yes
– Spider/Gear arms: 4
– Optional chain guard_Without chain/bash guard: yes
– Recommended bottom bracket_Press-fit: BB-RS500-PB
– Recommended bottom bracket_Threaded (normal): BB-RS501
– Threaded bottom bracket shell width (mm)_68: yes
– Q-factor (mm): 150
– Chain line (mm): 44.5
– Compatible chain: HG 12-speed
– P.C.D. (mm): 110
– Rear speeds: 12

Technology:

2-piece crank set:
– Integrated crank arm and bottom bracket: Increased rigidity with less weight
– Wider bearing positioning: Rigidity is enhanced and pedaling force is efficiently transmitted
– Precision Bearings: Low maintenance and simplified installation