Campagnolo 5 Bolt 11 Speed Chainrings 53x39T BCD110mm

Campagnolo 5-bolt 53x39T 11-speed chainring sets with a 110 BCD (Bolt Circle Diameter).

Campagnolo FC-SR353 is not a 5-bolt 110mm BCD chainring.

Key Specifications & Compatibility (FC-SR353)

• Part Number: FC-SR353 (53T outer chainring) 

• Crank Generation: 2015+ Campagnolo 11-speed mechanical (Super Record, Record, Chorus) 

• Design: 4-arm asymmetric spider 

• BCD / Pattern: Uses Campagnolo's 4-arm 145 mm outer / 112 mm inner spacing (paired with a 39T inner ring) 

• Shifting Features: Includes 8 specialized chain-pickup pins tailored specifically for the 53/39 tooth combination. 

• Incompatibility: Not compatible with 5-bolt 110 BCD cranksets, 2011–2014 5-arm Campagnolo cranks, or 12-speed/Hydro systems