{"title":"Drivetrain","description":null,"products":[{"product_id":"genetic-karyotype-square-taper-bottom-bracket","title":"Genetic Karyotype square taper bottom bracket","description":"\u003cp\u003eA nice basic bottom bracket. Lightweight carbon, aluminium \u0026amp; CrMo construction and pretty good bearing seals. Crank bolts included\u003cbr\u003e\u003cbr\u003eavailable in 103,107 and 110 mm lengths\u003c\/p\u003e\n\u003cp\u003eAs a specialty left cup can be shortened to allow dynamo cable to pass into left chainstay. Can be done at home or ask us to do it\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tunk Bicycles","offers":[{"title":"103","offer_id":57303723016566,"sku":null,"price":45.0,"currency_code":"EUR","in_stock":true},{"title":"107","offer_id":57303723049334,"sku":null,"price":45.0,"currency_code":"EUR","in_stock":true},{"title":"110","offer_id":57303723082102,"sku":null,"price":45.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/2193\/2662\/files\/karyotype.jpg?v=1771236469"},{"product_id":"middleburn-ro1-square-tapper-crankset","title":"Middleburn - RO1 Square Taper Crankset","description":"\u003cp\u003eMiddleburn RO1 square taper cranks, made from forged 7075 T6 aluminium in the UK.\u003c\/p\u003e\n\u003cp\u003eNeeds separate spider for chainring mounting. Different BCD spiders available, though for now we only stock the smartest one, 94bcd 5-bolt.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003eCompatible with square taper bottom brackets and JIS axles\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eForged, CNC’ed polished and anodised\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"simple-translate\" class=\"simple-translate-system-theme\"\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"background-image: url('moz-extension:\/\/58c46140-2aec-4e32-91fa-1d9e0a6ddfb3\/icons\/512.png'); height: 22px; width: 22px; top: 101px; left: -292px;\" class=\"simple-translate-button isShow\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"simple-translate-panel\" style=\"width: 300px; height: 200px; top: 0px; left: 0px; font-size: 13px;\"\u003e\n\u003cdiv class=\"simple-translate-result-wrapper\" style=\"overflow: hidden;\"\u003e\n\u003cdiv class=\"simple-translate-move\" draggable=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"simple-translate-result-contents\"\u003e\n\u003cp class=\"simple-translate-result\" dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cp class=\"simple-translate-candidate\" dir=\"auto\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tunk Bicycles","offers":[{"title":"165","offer_id":58542890647926,"sku":null,"price":190.0,"currency_code":"EUR","in_stock":true},{"title":"170","offer_id":58542890680694,"sku":null,"price":190.0,"currency_code":"EUR","in_stock":false},{"title":"175","offer_id":58542890713462,"sku":null,"price":190.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/2193\/2662\/files\/Middleburn_RO11jpg_1645d1ac-bebe-4606-9f22-636d32c0aafe.jpg?v=1787827386"},{"product_id":"middleburn-ro1-square-tapper-type-douple-road-sprider-94bcd","title":"Middleburn - RO1 Square taper type double road spider 94BCD","description":"\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--sticky-padding-top)\" dir=\"auto\"\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003eMiddleburn RO1 94BCD double road spider.\u003c\/p\u003e\n\u003cp\u003eDesigned for RO1 and RS7 square taper cranks, with a standard 44 mm road chainline and 94 BCD double chainring configuration.\u003c\/p\u003e\n\u003cp\u003eupdate 1.9.26: selection of 94bcd chainrings to be added soon\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Tunk Bicycles","offers":[{"title":"Black","offer_id":58542933999990,"sku":null,"price":90.0,"currency_code":"EUR","in_stock":true},{"title":"Silver","offer_id":58542934032758,"sku":null,"price":90.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/2193\/2662\/files\/Middleburn_RO1_spider_1.jpg?v=1787745576"},{"product_id":"middleburn-ro2-road-x-type-crankset-with-110-58-bcd-douple-spider","title":"Middleburn - RO2 Road X-Type Crankset with 110\/58 BCD double spider","description":"\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--sticky-padding-top)\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pt-12 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003eMiddleburn RO2 X-Type cranks are precision-machined from forged 7075-T6 aluminium.\u003cbr\u003e\u003cbr\u003eMade in the UK\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e110\/58 BCD Double spider\u003c\/li\u003e\n\u003cli\u003eCNC machined, hand-polished and anodized\u003c\/li\u003e\n\u003cli\u003e24 mm axle, compatible with HollowTech II-style BBs\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"simple-translate\" class=\"simple-translate-system-theme\"\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"background-image: url('moz-extension:\/\/58c46140-2aec-4e32-91fa-1d9e0a6ddfb3\/icons\/512.png'); height: 22px; width: 22px; top: 83px; left: 450px;\" class=\"simple-translate-button isShow\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"simple-translate-panel\" style=\"width: 300px; height: 200px; top: 0px; left: 0px; font-size: 13px;\"\u003e\n\u003cdiv class=\"simple-translate-result-wrapper\" style=\"overflow: hidden;\"\u003e\n\u003cdiv class=\"simple-translate-move\" draggable=\"true\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"simple-translate-result-contents\"\u003e\n\u003cp class=\"simple-translate-result\" dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cp class=\"simple-translate-candidate\" dir=\"auto\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tunk Bicycles","offers":[{"title":"165","offer_id":58542993998198,"sku":null,"price":360.0,"currency_code":"EUR","in_stock":false},{"title":"170","offer_id":58542994030966,"sku":null,"price":360.0,"currency_code":"EUR","in_stock":false},{"title":"175","offer_id":58542994063734,"sku":null,"price":360.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/2193\/2662\/files\/Middleburn_RO2.jpg?v=1787746161"}],"url":"https:\/\/tunk-bicycles.myshopify.com\/collections\/drivetrain.oembed","provider":"Tunk Bicycles","version":"1.0","type":"link"}