The Composite C-hubs with 6° caster was indeed especially developed the GT on-road platform. After significant tests of various caster perspectives, the best 6° caster had been chosen once the most suitable choice to exert effort inside the quantity of battle conditions bought at GT occasions. The C-hub geometry dramatically improves steering characteristics over the past 16° hubs. The paid off caster angle additionally actually helps reduce tire usage, creating more constant handling during longer primary activities. Utilize with #352279 C-hub 6° Right. Fits both GTX and GTXE.