These Associated factory replacement rear shock springs are rated at 1.9 lb/in and sized at 13mm diameter with a length of 61mm, 11.0 turns, and 1.2mm wire diameter. The white color coding makes it easy to identify spring rate at a glance when tuning. Sold as a pair, they are a direct-fit replacement for the Associated RC10 B6 and B7 platform rear shocks. Features: 1.9 lb/in spring rate 13mm diameter, 61mm length 11.0 turns, 1.2mm wire diameter White color-coded for quick rate identification Sold as a pair 7/7/26 cs