PRO630831 12mm Big Bore Pro-Spec Rear Shock (2) (Pre-Assembled)

A pair of pre‑assembled 12 mm Big Bore Pro‑Spec rear shocks designed for 1/10 scale short course trucks and other off‑road vehicles. These shocks feature advanced seal and shaft technology for smoother suspension action and customizable performance right out of the box.

• 12 mm Big Bore shock design for enhanced damping performance and improved handling.

• Pre‑assembled setup lets you just add shock oil and go without complicated assembly.

• Single low‑friction X‑Ring seal for smoother, more consistent shock action.

• Pistons and shaft guides made from silky smooth white Delrin to reduce stiction and friction.

• Hard chrome‑coated 3.5 mm shock shafts for strength and wear resistance similar to full‑size racing shocks.

• Includes multiple piston options (1.4, 1.6, 1.8 mm) plus a blank piston for drilling to custom sizes.

• Easy‑access bleeder cap screw allows for repeatable, consistent shock bleeding and tuning.