Pro-Line PRO643400 PowerStroke Oil-Filled Shocks (4) for Losi Micro B/T

In The Box

Pre-filled (200CST) Oil-Filled shocks for the Losi Micro-B/T
4
Medium Springs (installed)
4
Hard Springs
4
Mounting Hardware

Upgrade your Losi Micro-B/T with the premium suspension performance it deserves. PowerStroke Oil-Filled Shocks are pre-filled, CNC-machined aluminum upgrades designed to replace stock plastic shocks with smoother damping, reduced bounce, and improved corner traction. Featuring a competition-ready emulsion design with a bleeder screw and threaded collar adjustability, they deliver true tunability and consistent rebound control, giving every driver a measurable edge from the first lap.

Pre-filled and ready to mount for instant suspension performance
CNC-machined aluminum construction for strength and smooth damping
Emulsion-style oil-filled design with bleeder screw for consistent rebound
Adjustable threaded collars for quick, precise ride height tuning
PRO643410 Rebuildable design and compatible with LOS-1991 springs

Ready-to-Mount Race Performance
PowerStroke shocks come pre-filled with 200CST oil and medium springs installed, so you can mount them straight out of the package. Designed as a true bolt-on upgrade, they instantly improve damping consistency, reduce bounce, and increase high-speed stability, making them the perfect first upgrade for any Micro-B/T.

CNC Aluminum Strength & Precision
Built from CNC-machined aluminum with copper anodized shock bodies and black anodized caps, PowerStroke shocks offer superior strength over stock plastic units. The rigid construction enhances damping precision, improves durability, and maintains consistent performance under racing conditions.

Emulsion Oil-Filled with Bleeder Control
The emulsion-style oil-filled design includes a bleeder screw and robust copper washer gasket system to ensure proper sealing and consistent rebound. This setup allows drivers to fine-tune suspension feel for different surfaces and driving styles, delivering predictable control lap after lap.

True Tunability On the Fly
Dial in ride height and spring preload with adjustable threaded collars for fast trackside tuning. Whether you're fine-tuning for grip, stability, or jump landings, these shocks provide real suspension adjustability that stock units simply cannot match.

Rebuildable & Cross-Compatible
Designed with racers in mind, PowerStroke shocks are fully rebuildable using PRO643410 components. They are also cross-compatible with LOS-1991 springs, expanding tuning options and ensuring your Micro-B/T suspension evolves with your driving style and competition needs

Product Specs