Feature：

Features:
➤ Addition of BB centering design
➤ Addition of a slimmed down black air-seal ring for better efficiency
➤ Range variant - Dual end point with W-shaped pressure pad design
➤ Added mark on the positioning lug for better recognition
➤ 50 degree.

Features:
➤ Addition of BB centering design
➤ Addition of a slimmed down black air-seal ring for better efficiency
➤ Range variant - Dual end point with W-shaped pressure pad design
➤ Added mark on the positioning lug for better recognition
➤ 60 degree.

Features:
➤ Addition of BB centering design
➤ Addition of a slimmed down black air-seal ring for better efficiency
➤ Range variant - Dual end point with W-shaped pressure pad design
➤ Added mark on the positioning lug for better recognition
➤ 70 degree.

Features:
➤ Addition of BB centering design
➤ Addition of a slimmed down black air-seal ring for better efficiency
➤ Range variant - Dual end point with W-shaped pressure pad design
➤ Added mark on the positioning lug for better recognition
➤ 75 degree.