Lazer ZX7.5 Rear Upper Bulkhead - Precision Replacement LA412 by Kyosho  [KY-LA412]

Replacement rear upper bulk for Lazer ZX7.5

This rear upper bulk is an RC-scale replacement component for the Lazer ZX7.5 platform, supplied as Kyosho part LA412. It serves as the upper rear bulkhead that locates the suspension arms and provides mounting points for the rear links on the chassis.

Fitment targets the Lazer ZX7.5 chassis layout, where accurate alignment is key for consistent suspension travel. The unit replaces a worn or damaged factory bulk and restores correct rear geometry to recover handling balance.

Fitting is suited to standard hobby maintenance: remove the rear body fasteners and disconnect any attached hardware, remove the damaged bulk, set the LA412 in position, confirm link alignment and reinstall the screws with moderate torque to avoid stripping threads. Recheck nearby fasteners after the initial test run.

Tuning impact: the rear upper bulk defines the upper link mounting locations and influences roll-center and camber response. Installing a true replacement bulkhead keeps suspension geometry consistent so small link adjustments produce predictable changes during setup.

Fit this part when you need to restore correct rear suspension geometry or replace a damaged bulkhead to keep chassis balance and tuning behaviour repeatable.