Gates CDX pulley CT11505AA-D 50 T teeth 104mm

The Gates CDX CT11505AA-D is a front 50-tooth pulley for the Gates Carbon Drive CenterTrack system. Unlike the standard CT11505AA, the D version features a special 1.8 mm offset for an optimized chainline. Gates recommends this version for Shimano Alfine Di2 applications in combination with the CT1128DMN rear pulley. Together with the Gates-specific SRAM S300 crankset and a 68 mm bottom bracket, the required chainline is achieved. The black pulley is made of aluminum and features a classic 5-hole mounting pattern with a 130 mm bolt circle. With 50 teeth, 11 mm chain pitch, and a CenterTrack profile, it is designed for compatible CDX belt drives. This makes the exact version particularly important, as it differs from other Gates 50-tooth pulleys in terms of mounting and offset.

Manufacturer: Gates
Product series: CDX
Product type: Front pulley
System: Gates Carbon Drive CenterTrack
Item number: CT11505AA-D
Gates product number: 78980185
Number of teeth: 50
Belt pitch: 11 mm
Mounting: 5-hole
Bolt circle: 130 mm BCD
Version: Di2 offset
Offset: 1.8 mm
Compatibility: Gates CDX CenterTrack
Application: Shimano Alfine Di2
Compatible rear pulley: CT1128DMN
Compatible crankset: Gates-specific SRAM S300 crankset
Compatible bottom bracket width: 68 mm
Outside diameter: 173.2 mm
Mounting inner diameter: 114.5 mm
Pulley width: 11.0 mm
Material: Aluminum
Color: Black

1 Gates CDX CT11505AA-D pulley with 50 teeth

Manufacturer information:

Gates Corporate Bâtiment H2O
Gates Industrial Europe Sàrl
33, rue de Gasperich
L-5826 Hesperange, Luxembourg - https://www.gates.com/

Responsible person: