Parts/Suspension & steering/Shock parts & springs/Hot Racing Losi Promoto-MX Linear Rate Rear Spring Set (3) (Soft/Medium/Firm)
Hot Racing Losi Promoto-MX Linear Rate Rear Spring Set (3) (Soft/Medium/Firm)
Hot Racing

Hot Racing Losi Promoto-MX Linear Rate Rear Spring Set (3) (Soft/Medium/Firm)

Part # HRALPC25F256
Where to buy
$11.88
AMain Hobbies
Seen Oct 12, 2026
$11.88Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Spring Overview:

Hot Racing Losi Promoto-MX Linear Rate Rear Spring Set. This is an optional rear spring set intended for use on the Losi Promoto-MX 1/4 Dirt Bike. Linear rate springs maintain the same rate of force throughout compression, allowing for more predictable handling and setup adjustments. This set is crafted from durable steel, offering superior durability and strength for long-lasting performance. These springs are ideal for fine-tuning the suspension of your Losi Promoto-MX to better match your driving style.


Specifications:

  • Length: 0.98in (25mm)
  • Width: -
  • Inner Diameter: 0.78in (19.8mm)
  • Wire Diameter: 0.09in (2.3mm)
  • Application: Promoto-MX

Includes:

  • (1) Soft Green Spring
  • (1) Medium Blue Spring
  • (1) Firm Red Spring

Spring Turns:

Softest
Green 9.5T
Blue 9T
Red 8T
Hardest

Effects of Shock Spring Changes:

Shock Spring Characteristic
Softer
  • Increased Chassis Roll
  • Increased Traction
  • Better in Bumpy Conditions
  • More Likely to Bottom Out
Stiffer
  • Decreased Chassis Roll
  • Decreased Traction
  • Increased Responsiveness

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