Serpent S411 springs & delrin adapters
Serpent have released some new items for their 411 platform, including some additional shock springs to extend the already large range available for the Serpent RCCX shock absorbers. The new springs come in grey (2.6/14.8), black (2.9/16.5) and green (3.5/19.9). To use in combination with a spool in the front there are some new very light & strong delrin driveshaft adapters. Not as durable as the regular spring steel ones, but they do offer super smooth action.
Source: Serpent [serpent.com]