Lazer ZX7.5 Upper Rear Bulk - Suspension Geometry Part LA412 by Kyosho  [KY-LA412]

Kyosho LA412 - Rear Upper Bulk (ZX7.5)
Price:
AUD$19.93
Brand:
Kyosho
Model:
KY-LA412
GTIN:
4548565524136
Condition:
Brand New
Quantity Discount
Unit Price You Save
2 $16.15 each $7.57 or 19%
3+ $15.34 each $13.78 or 23%
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Upper rear bulk component for the Lazer ZX7.5 chassis

The Kyosho LA412 rear upper bulk is an RC-scale replacement crafted for the Lazer ZX7.5 platform. It functions as the upper rear bulkhead that positions the suspension arms and secures rear link attachment points on the chassis.

This part is intended for the Lazer ZX7.5 chassis arrangement, where precision fit and alignment ensure predictable suspension articulation. It replaces the factory rear upper bulk to restore proper geometry after wear or crash damage.

Installation is simple for hobby technicians: remove rear body fixtures and related fasteners, detach the old bulkhead, place the LA412 in the correct orientation, check link alignments and refit hardware using controlled torque to avoid thread stripping. After the first run, inspect mounting points and screws.

Setup influence: the rear upper bulk determines the upper link positions and affects roll-center and camber response. Keeping a correctly formed bulkhead in place helps keep suspension geometry stable so tuning adjustments behave consistently.

Replace the bulk when needed to ensure correct rear suspension geometry and to keep chassis handling predictable during tuning.
Remark :
Due to limited stock availability, please notice that some Kyosho items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Can I use LA412 on modified ZX7.5 frames?

If the chassis retains the original mounting layout for the Lazer ZX7.5, LA412 will fit; custom frame modifications may require additional verification.

What torque should I apply to the bulkhead fasteners?

Use moderate torque consistent with other plastic chassis fasteners; avoid over-tightening which can strip threads or deform mounting bosses.

Does this change camber or roll-center by itself?

The bulk sets the fixed mounting points for upper links, so an accurate replacement preserves existing camber and roll-center values rather than altering them inherently.

When is it necessary to replace the bulkhead?

Replace the bulk when cracks, deformation or damaged mounting points prevent correct link location or when handling becomes unpredictable due to geometry loss.

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