2.5 LEVEL HELIX for PIKO R3/R4

PROSES Helix for PIKO R3 / R4 – 484 mm / 546 mm, 2.5 Levels

Optimize your layout with the PROSES Modular Helix V3, designed specifically for PIKO R3 & R4 curved tracks and fully compatible with any suitable flex track.

This single-track, 2.5-level helix provides a compact, efficient, and reliable solution for gaining elevation while maintaining smooth train operation. With its moderate radius, compact footprint, and smooth gradient, it is ideal for layouts where space-saving vertical movement is required.

Key Features

• Modular Design: 2.5 loops / levels with easy, flexible assembly
• Perfect for PIKO: Designed for PIKO R3 & R4 curved tracks or compatible flex track
• Compact Layout Solution: Ideal for gaining height in limited layout space
• Smooth Operation: Gentle gradients for reliable running
• Flexible Setup: Can be assembled clockwise or anti-clockwise according to your layout design

Dimensions & Technical Details

• Track Radius:
– R3: 484 mm / 19"
– R4: 546 mm / 21.4"

• Segment Width: 15 cm / 5.9"
• Vertical Clearance Between Levels: 8 cm / 3.15"
• Total Height: 25 cm / 10"
• Overall Width: 118 cm / 46.5"

Gradient

• Inner Track Gradient: approx. 2.6%
• Outer Track Gradient: approx. 2.3%

The gentle gradient helps ensure reliable operation, making this helix suitable for smooth and steady train movement between levels.

Easy & Flexible Assembly

All PROSES helices can be assembled clockwise or anti-clockwise, allowing:

• Entry or exit from left or right
• Entry or exit from top or bottom

This flexibility makes the helix suitable for a wide range of layout designs — whether permanent or modular.