Right back shock towers are redesigned allowing the Horizontal split Bulkheads (HS), while having denser top surprise mount functions to possess extra accurate set-up alterations. A big component surprise tower features additional roll center jobs also for substantially more fine set-up modification moreover additional wing mounting functions. Right back shock towers are machined from premium-grade 3.5 mm graphite and they are lightweight & strong, with numerous surprise jobs and roll center modification functions Fits XB4'21