Neo Space Blacktron 6851 Tri-Wheeled Tyrax Squad. Only reason I could see for a tricycle would be a mounted gun on the back. Should easily be able to modify it to have
Blacktron - LEGO instructions website. Find old LEGO set instruction manuals here for free. | Lego instructions, Vintage lego, Lego design
LEGO 6851 - Tri-Wheeled Tyrax from BrickLink Studio
LEGO 6861-2: Super Model Building Instruction | Brickset: LEGO set guide and database
LEGO 6851 Tri-Wheeled Tyrax Space Blacktron II Manual Instructions Only! MINT | eBay