ARC R113203 R11 Suspension Block FR - Brass $29.95 $39.95 / Tax included. Default Title Default Title Add to Cart Your Email Send This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. These brass suspension blocks for ARC R11 2018 and 2019 are 7.7g heavier than the original aluminium pieces. It is ideal for adjusting weight distribution and to fine tune the car's balance.