XRAY 302257 Aluminium Steering Block Black Swiss 7075 T6 T4 2020 Specs (300026) (300027) T4 Series XRAY item 302257 - Aluminium Steering Block Black Swiss 7075 T6 T4 2020 Specs (300026) (300027) T4 Series XRAY has released Aluminium Steering Block Black Swiss 7075 T6 under T4 2020 Specs (300026) (300027) T4 Series category XRAY made Aluminium Steering Block Black Swiss 7075 T6 (302257) T4 2020 Specs (300026) (300027) T4 Series Aluminum steering block CNC-machined from premium lightweight T6 aluminum. Ultra-strong construction provides very long life and durability in even the most extreme racing conditions. Composite bushings are used to secure the ball-bearings in both sides of this steering block; this allows the ball-bearings to fit perfectly and turn freely, giving much higher lifetime compared to bearings installed directly into aluminum steering blocks.