• Aluminum alloy CNC machined lightweight tensioner arms, derailleur, fixture, and thumb shifter.
• Compatible with P/T Line or Electric P Line frame (A/C Line version is in other listings). Comes with X7 advanced Cog Set on stock wheelset for 7-speed 11-28T (#X7AdvancedCogSet).
• The largest cog is 28T (vs. the original max 18T on P/T Line).
• Titanium Tensioner Spring.
• CNC machined advanced-parallelogram derailleur (spring-activated main body, 2 Jockey wheels, fixture).
• Double tap 7-speed thumb shifter with cable.
• Please find for A/C Line version in this LISTING.

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