CROSS REFERENCE PART NUMBERS:
• Honda 13120-KSR-730
• Honda 13110-KSR-730 (Size A Reference)
• Pro-X 01.1225.B
ITEM SPECIFICATIONS:
• Component: Piston Kit Size B (Standard Bore)
• Piston Size: 53.95mm (Size B for Standard 54mm Bore)
• Bore x Stroke: 54.0mm x 54.4mm
• Displacement: 124.8cc
• Kit Contents: Piston, Rings, Wrist Pin, Circlips
• Material: Cast Aluminum Alloy Piston
• Engine: 124.8cc Liquid-Cooled Single-Cylinder 2-Stroke Reed Valve
• Model Years: 2005-2007
COMPATIBLE MODELS:
Honda CR125R Motocross Motorcycle:
• CR125R 125 (2005-2007)
PRODUCT DETAILS:
Direct replacement piston kit engineered for the Honda CR125R 124.8cc liquid-cooled single-cylinder 2-stroke reed valve motocross motorcycle covering the 2005 through 2007 model years. The Size B piston at 53.95mm provides tighter piston-to-wall clearance than Size A within the standard 54mm bore for optimal ring seal and 2-stroke performance across the full RPM range of the CR125R engine. Kit comes complete with cast aluminum alloy piston, precision-fitted piston rings, hardened wrist pin, and retaining circlips for a comprehensive top-end rebuild on the Honda CR125R. Precision machined on CNC equipment using low-expansion piston alloy for reliable sealing and consistent power delivery under the demanding conditions of competitive motocross racing. The 2005-2007 CR125R features revised cylinder porting and casting requiring this model-specific piston kit for proper fit and sealing. This piston kit ensures proper fit and dependable performance for all 2005-2007 Honda CR125R motocross motorcycles with the 124.8cc 2-stroke engine.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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