Kyosho W5313-20 Spring (Φ1.2 x 9.25 x 61/2.0/2 pieces)

Customize your Ultima RB7.5's suspension with these precisely calibrated springs offering a softer 2.0 rate for technical tracks requiring maximum traction. The 61mm length and 9.25mm coil diameter provide progressive compression characteristics ideal for bump absorption.

Key Features

• Technical track tuning - 2.0 spring rate for plush response

• Extended length - 61mm design increases travel

• Wider coil spacing - 9.25mm diameter for smooth compression

• Matched pair - Two identical springs included

Why These Springs Work

• Improved bump compliance - Soaks up rough sections

• Enhanced grip - Maintains tire contact on uneven surfaces

• Balanced pairing - Consistent performance across both springs

• Easy installation - Direct replacement for stock components

Technical Specifications

• Wire diameter: 1.2mm

• Coil diameter: 9.25mm

• Free length: 61mm

• Spring rate: 2.0

• Material: High-tensile steel

Recommended Applications

• Low-grip or bumpy tracks

• Technical indoor courses

• Traction-limited conditions

• Paired with lighter shock oils

Fine-tune your RB7.5's handling with these softer springs that deliver the compliance needed to conquer challenging terrain while maintaining precise control.