4.5 LEVEL HELIX for PIKO R3/R4

PROSES Helix for PIKO R3 / R4 – 484 mm / 546 mm, 4.5 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 double-track, 4.5-level helix provides an efficient and reliable solution for gaining elevation while maintaining smooth train operation. With its generous radius, compact footprint, and gentle gradient, it is ideal for layouts where reliable vertical movement, continuous running, and smooth climbing are required.

Key Features

• Modular Design: 4.5 loops / levels with easy, flexible assembly
• Perfect for PIKO: Designed for PIKO R3 & R4 curved tracks or compatible flex track
• Double-Track Layout: Ideal for continuous up/down traffic and realistic operations
• 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: 41 cm / 16"
• Overall Width: 118 cm / 46.5"

Gradient

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

The gentle gradient helps ensure smooth and reliable operation, making this helix suitable for both passenger and freight trains, including longer consists.

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.