LOSI Promoto-MX Rear Shock Spring Set MX112/SP 7075 Alloy Precision Tune by GPM  [MX112/SP]

TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE 7075 Alloy Linear Rate Rear Shock Spring Set - GPM MX112/SP
Price:
USD$9.90
Brand:
GPM
Model:
MX112/SP
GTIN:
4894538400014
Condition:
Brand New
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Technical Overview of Rear Spring Set

This MX112/SP spring set supplies three 7075 alloy linear-rate springs intended for LOSI Promoto-MX platforms, offering distinct soft, medium and firm rates for systematic suspension tuning. The geometry data supplied supports accurate pairing with existing shock shafts and retainers and simplifies rate changes without modifying shock internals.

Each rate maintains consistent internal diameter and coil spacing to reduce fitment variables when swapping springs. Use the provided coil counts and measurements to check compatibility and to document baseline setups for repeatable performance changes.

Packing includes

  • Gunmetal colored Spring - 1pcs
  • Gold Spring - 1pcs
  • Black Spring - 1pcs

Original Name / Part No:

LOS263001

Compatible Models

  • LOSI 1/4 PROMOTO-MX MOTORCYCLE RTR, FXR-LOS06000
  • LOSI 1/4 PROMOTO-MX MOTORCYCLE RTR, FXR-LOS06002
  • LOSI 1/4 Promoto-SM FXR Supermoto Motorcycle RTR (LOS-2272,LOS-2310)

How should I verify spring fit before installation?

Measure free length, inner diameter and compare coil count with the supplied geometry; ensure retainer seating and shaft clearance match those measurements before final installation.

What is the recommended procedure for baseline tuning?

Fit the medium rate first, record static ride height and rebound, then swap to soft and firm to quantify changes in sag and rebound response for controlled tuning iterations.

Are there special inspection points for alloy springs?

Inspect coil ends for burrs, verify there is no permanent set or deformation, and check for corrosion; document any deviations from nominal geometry before reuse.