KTM300SX KTM300XC KTM300 2008-2016 Phathead cylinder head kit YZ250 SX105-10 StockSX106-10 (100+ octane)SX107-10 (105+ This model does not CR125R9302 CR85 big bore kit Chamber selection:K31 5.3cc Stock compression
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Ships within 48 hours · Estimated delivery Oct 4 - Oct 9