Generic 90cc Pit Bike Crankshaft & Conrod Assembly with Bearings
Replacement crankshaft assembly for selected generic Honda-style horizontal 88cc / 90cc pit bike engines using a 13 mm piston pin and the same general crankshaft layout as the Honda C90 13000-GB6-760 family.
Product Description
Brand new aftermarket complete crankshaft assembly supplied with connecting rod and main bearings. The assembly uses the classic Honda-style horizontal single-cylinder layout, with twin crank webs/counterweights, pressed connecting rod, timing sprocket, splined shaft section and threaded shaft ends.
Key Specification
- Part type: Complete crankshaft / crank assembly
- Includes: Crankshaft, connecting rod and main bearings as supplied
- Engine type: Horizontal air-cooled 4-stroke single-cylinder
- Piston / gudgeon pin compatibility: 13 mm
- Engine family stroke: approximately 49.5 mm on the supported C90 / 1P47FMF-type engine family
- Timing sprocket reference: 14 tooth
- Construction: Machined steel crankshaft with forged-style connecting rod and pressed crank webs
- Condition: Brand new aftermarket replacement
Honda OE / OEM Reference Numbers
- 13000-GB6-760 – Crankshaft complete
- 13310-GB6-760 – Right crankshaft component
- 13321-GB6-760 – Left crankshaft component
- 13201-GB5-760 – Connecting rod
- 13111-GB0-910 – Piston pin
- 14311-035-000 – Timing sprocket, 14T
- 91001-GB6-760 / 91001-GF6-004 – Main bearing reference family
OE numbers are supplied for identification and fitment comparison only. This is an aftermarket replacement part and is not represented as a Genuine Honda component.
Important Fitment Checks
- Confirm a 13 mm piston pin is used by the engine.
- Compare both crankshaft ends, splines, threads and taper with the original crankshaft.
- Compare crank web width, connecting-rod position, timing sprocket and bearing locations.
- Check the engine is a compatible Honda-style horizontal 85-90cc engine before fitting.
- Do not assume all 90cc engines use the same crankshaft; electric-start and later engine designs can differ.
Installation
Crankshaft replacement requires full engine disassembly and correct crankcase, bearing, oil-seal, cam-chain and timing setup. Check crankshaft end float, bearing seating, connecting-rod movement and oil passages during assembly. New oil seals and appropriate engine gaskets are recommended whenever the crankcases are split.
Professional installation is recommended if you are not experienced with horizontal 4-stroke motorcycle engines.
Weight & Shipping Size
- Approximate crankshaft weight for this 88/90cc class: 2.25 kg
- Shopify packed shipping weight: 2.5 kg
- Estimated packed size: 25 x 20 x 15 cm
Compatibility
- Generic 90cc pit bikes with Honda-style horizontal 4-stroke engines
- Selected 88cc / 90cc Lifan-style 1P47FMF horizontal engines
- Selected 47 x 49.5 mm bore/stroke 86-90cc horizontal engine families
- Common pit-bike applications using a 13 mm piston / gudgeon pin
Fitment note: Generic pit-bike engines vary considerably. Before ordering, confirm the engine uses a 13 mm piston pin and compare both crankshaft ends, bearing positions, timing sprocket and overall crank layout with the original part.