PRO R Stage 1 rzr engines Key Features:1

Key Features:1

where Bikeman started adding weight to the outside of the weight pivot point

Coated Bearings

the cylinder head gasket should be inspected after each event (4-16 passes)

PRO R Stage 1 rzr engines Key Features:1Stage 1 PRO R build is an OEM refresh that will be more reliable than factory. Improved cylinder head work and improved assembly practices give this engine a much better chance in your stock machine. 1000 Mile 1 Year Warranty Run stock tune ACL rod bearings CNC valve job Balanced crankshaft Blueprinted with better clearances All engines machined and assembled on site by true professionals of the industry with over 40 years combined experience.