{"product_id":"genetic-karyotype-cartridge-bottom-bracket-for-jis-square-taper-cranksets-103-110-5mm","title":"Genetic Karyotype Cartridge Bottom Bracket for JIS Square Taper Cranksets 103-110.5mm","description":"\u003cp\u003eThe Genetic Karyotype Cartridge Bottom Bracket combines traditional Cr-Mo JIS square axle design with modern precision cartridge bearings for smooth performance. Its lightweight forged alloy cups and carbon fibre spacer ensure durability without adding extra weight, making it ideal for high-performance builds.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in 103, 107, or 110.5mm sizes and supplied with hex cap type bolts, this bottom bracket fits perfectly for fine-tuning your fixie or single-speed bike. Experience enhanced transmission efficiency with a reliable, lightweight component designed for serious cycling enthusiasts.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLightweight and durable fixie or single-speed bike builds\u003c\/li\u003e\n  \u003cli\u003eSmooth and precise pedaling with cartridge bearings\u003c\/li\u003e\n  \u003cli\u003eEasy installation with hex cap type bolts included\u003c\/li\u003e\n  \u003cli\u003eCompatibility with multiple bottom bracket shell widths\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse with non-JIS square taper cranksets\u003c\/li\u003e\n  \u003cli\u003eApplications requiring sealed or external bearing systems\u003c\/li\u003e\n  \u003cli\u003eBikes requiring threaded bottom brackets of different standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bottom bracket compatible with all cranksets?\u003c\/strong\u003e\u003cbr\u003eThis cartridge bottom bracket is designed for JIS square taper cranksets only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat sizes are available?\u003c\/strong\u003e\u003cbr\u003eIt comes in 103mm, 107mm, and 110.5mm shell widths to fit various frames.\u003c\/p\u003e","brand":"Genetic","offers":[{"title":"68x103 \/ Black, Silver","offer_id":45478408650927,"sku":"BBGEKJ03","price":33.83,"currency_code":"GBP","in_stock":true},{"title":"68x107 \/ Black, Silver","offer_id":45478408683695,"sku":"BBGEKJ07","price":33.83,"currency_code":"GBP","in_stock":true},{"title":"68x110.5 \/ Black, Silver","offer_id":45478408716463,"sku":"BBGEKJ10","price":33.83,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1608288336-79759500.jpg?v=1768521727","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/genetic-karyotype-cartridge-bottom-bracket-for-jis-square-taper-cranksets-103-110-5mm","provider":"Swinnerton Cycles","version":"1.0","type":"link"}