{"product_id":"bbb-bdp-09-rollerboys-13t-jockey-wheels-black-for-shimano-12-speed-mtb-groupsets","title":"BBB BDP-09 RollerBoys 13T Jockey Wheels Black for Shimano 12-Speed MTB Groupsets","description":"\u003cp\u003eThe BBB BDP-09 RollerBoys Jockey Wheels 13T Black are precision-engineered components designed to enhance the performance and longevity of your rear derailleur. Crafted from Grivory EMS composite material infused with 40% glass fibre, these jockey wheels offer exceptional strength and durability while maintaining a lightweight profile. Their 13T size perfectly balances smooth chain movement and efficient power transfer, making them an ideal upgrade for Shimano 12-speed MTB groupsets.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with sealed CrMo bearings and an aluminium cover, these jockey wheels ensure minimal friction and maximum protection against dirt and moisture. This combination not only extends the lifespan of your transmission but also contributes to a quieter, more responsive ride. Their sleek black design complements any bike aesthetic while delivering reliable shifting performance in diverse riding conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eImproving the smoothness and precision of rear derailleur shifting\u003c\/li\u003e\n  \u003cli\u003eEnhancing durability and resistance to wear through advanced composite materials\u003c\/li\u003e\n  \u003cli\u003eEnsuring compatibility with Shimano 12-speed MTB groupsets for easy upgrades\u003c\/li\u003e\n  \u003cli\u003eReducing maintenance thanks to sealed bearings that protect against contaminants\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 narrow wide chainrings, as these jockey wheels are not designed for such setups\u003c\/li\u003e\n  \u003cli\u003eCompatibility with non-Shimano drivetrain systems\u003c\/li\u003e\n  \u003cli\u003eApplications requiring pulleys smaller or larger than 13T\u003c\/li\u003e\n  \u003cli\u003eRiders looking for heavyweight components, as these prioritize lightness and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAre these jockey wheels compatible with all Shimano MTB groupsets?\u003c\/strong\u003e\u003cbr\u003eThey are specifically designed for Shimano 12-speed MTB groupsets and may not fit other configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do the sealed bearings improve performance?\u003c\/strong\u003e\u003cbr\u003eSealed bearings reduce friction and protect against dirt and moisture, leading to smoother shifting and longer component life.\u003c\/p\u003e","brand":"BBB","offers":[{"title":"13T \/ Black","offer_id":45965232177327,"sku":"2913610901","price":17.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/BDP-09_2913610901_00.jpg?v=1768532139","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/bbb-bdp-09-rollerboys-13t-jockey-wheels-black-for-shimano-12-speed-mtb-groupsets","provider":"Swinnerton Cycles","version":"1.0","type":"link"}