From Exotek Racing:
Titanium quick change shock post sets for the D413 OR D216 with HB or Exotek alloy shock caps (not for the D413 plastic shock caps).
Ti 6-4 titanium for durability and lightweight (each post weights 1.6gr).
Includes 2- M3 locknuts.
2 posts per set.
#1738 – $15.95 MSRP
Precision machined premium titanium front axle set for the D216. At only 4.8 grams per pair, these axles are lightweight yet nearly as strong as steel. Rounded and angled hex profile makes wheel installation extra quick and easy! Uses a standard M3 screw to capture the hubs (always use blue thread lock).
#1749 – $23.95 MSRP
5mm hard carbon fiber chassis rail set for the D216. Increases the stiffness of the chassis for sharper handling on all race surfaces. Also helps seal up the body, when used with velcro strips (not included) to help keep out track debris. Includes heavy duty alloy battery posts and steel hardware. The stock plastic lipo holders can be trimmed down if it is preferred over the included alloy posts. USA made carbon fiber. Requires D216 velcro strips for body holding (not included).