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BMXULTRA just posted up an in depth Supercross BMX SX450 frame review here
Our Alans Supercross Team Manager and National champion John Bentley takes you through the positives of BMX racing on OS20 and the differences you can expect. Get all your BMX Racing needs at alansbmx Worldwide shipping available....
John Bentley's Supercross SX450 OS20. What Is OS20? OS20 is NOT 22”. OS20 is 20”, but bigger. There are two wheel sizes in the 20” category – the 20” on Jr/mini bikes which uses the 451mm diameter wheel in narrow...
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