This is the cylinder included in the 77cc pack but sold separately from its crankshaft. The 50mm diameter cylinder has 6 transfers as well as a wide exhaust outlet with bar. The 39.2mm stroke crankshaft has an 85mm connecting rod which accommodates a 12x15x15mm needle bearing. You simply cannot go wrong buying this kit. Many people can attest to its solidity and its incredible quality/price/performance ratio.
Please note: Like other kits in this category, you must mill the lower engine to install the crankshaft and cylinder.
This is the cylinder contained in the 77cc pack but sold separately from its crankshaft. The 50mm diameter cylinder has 6 transfers as well as a large bar exhaust outlet. The 39.2mm racing crankshaft has an 85mm connecting rod which accommodates a needle cage measuring 12x15x15mm. You simply cannot go wrong with purchasing this kit. Many people can attest to its solidity and its incredible quality/price/performance ratio.
Warning: Like other kits in this category, you must mill the lower part of the engine to be able to install the crankshaft and the cylinder.
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