{"product_id":"vhm-beta-rr300-2t-18-24-x-trainer-300-19-25-cylinder-head-insert","title":"VHM Beta RR300 2T 18-24 \/ X-Trainer 300 19-25 Cylinder Head Insert","description":"\u003cp\u003eExchangeable combustion chamber insert for VHM cylinder head AA33182. Each insert has a different combustion chamber volume, so the compression and power delivery can be set up for the track, conditions and fuel. The last digits of the part number are engraved on the insert.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFITS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e28.50cc - AE32295-E (VHM standard RR300 18-21): Beta: RR300 2T 18-21, X-Trainer 300 19-21\u003c\/li\u003e\n\u003cli\u003e28.00cc - AE32328-E (VHM standard RR300 22-24): Beta: RR300 2T 22-24, X-Trainer 300 22-25\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOPTIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e28.50cc - AE32295-E (VHM standard RR300 18-21)\u003c\/li\u003e\n\u003cli\u003e28.00cc - AE32328-E (VHM standard RR300 22-24)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmaller volume (higher compression): more bottom-end and mid-range, suits deep sand, needs good fuel to avoid detonation\u003c\/li\u003e\n\u003cli\u003eLarger volume (lower compression): more over-rev and top speed, suits hard-pack\u003c\/li\u003e\n\u003cli\u003eQuick to change at the track\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFits VHM cylinder heads only, not the OEM head. The head and its O-ring kit are sold separately.\u003c\/em\u003e\u003c\/p\u003e\n","brand":"VHM","offers":[{"title":"28.50cc - AE32295-E (VHM standard RR300 18-21)","offer_id":67522032304369,"sku":"SER-VHM-AE32295-E","price":112.95,"currency_code":"AUD","in_stock":true},{"title":"28.00cc - AE32328-E (VHM standard RR300 22-24)","offer_id":67522032337137,"sku":"SER-VHM-AE32328-E","price":112.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0456\/3441\/files\/62125_1.jpg?v=1794689727","url":"https:\/\/goldcoastdirtbikeperformance.com.au\/products\/vhm-beta-rr300-2t-18-24-x-trainer-300-19-25-cylinder-head-insert","provider":"Dirt Bike Performance","version":"1.0","type":"link"}