145 mm PLUS support rings (PrimaLuceLab, SKU: PLLANSU145P ) are a pair of precision clamps designed for tubes with a diameter of approximately 145 mm. Compatibility with the modular PLUS system allows you to mount the telescope on Vixen / Losmandy rails and easily add accessories (e.g. guider guide) above the tube without the need for additional adapters.

Key Features of the 145mm PLUS Rings

• Inner diameter 145 mm – fits tubes 144 – 146 mm
• M6 threads in PLUS grid (55 mm and 20 mm spacing) – quick integration with PrimaLuceLab plates and clamps
• hinge and knurled set screw – convenient opening and closing in the field
• 6061-T6 aluminum body, CNC milled, hard anodized - high stiffness and corrosion resistance
• possibility of mounting rails or guides under and above the tube – easy expansion of the configuration

Set components

• two 145 mm PLUS support rings

Technical parameters

• Inner diameter: 145 mm
• mounting threads: 6 × M6 (PLUS standard)
• hole spacing: 55 mm (Losmandy) / 20 mm (Vixen)
• material: aluminum 6061-T6, anodized
• compatible tubes: telescopes Ø 144 – 146 mm
• manufacturer: PrimaLuceLab – Italy

The 145mm PLUS rings provide stable, on-axis mounting for medium-sized telescopes and full compatibility with the PrimaLuceLab PLUS ecosystem of accessories.