The ULP (Ultra-Low Profile) straight back surprise tower accommodates the upper clamps with centering pins. Centering pins help entirely fitment related to shock towers in top clamps to the identical position every time, ergo helping eradicate tweak . CNC-machined from 3.0mm dense premium-grade graphite product to ensure maximum power and longevity. The shock towers are super small, lightweight, and very compact. The ULP (Ultra-Low Profile) surprise tower is 4mm less than the SLP (Super-Low Profile) shock tower to boost the advantages of the ULP shocks, also to produce an ultra-low profile that helps go the CG just possible. Recommended for low-to-very high traction track conditions.