{"product_id":"ospw-x-for-shimano-grx-2x12","title":"OSPW X for Shimano GRX 2x12","description":"\u003cp data-path-to-node=\"3\"\u003eThe OSPW X for GRX 2x12 features a 13-tooth upper and 19-tooth lower pulley wheel combination. This oversized setup reduces chain friction by 35–40% compared to the stock Shimano pulleys. The cage is constructed from a custom-molded carbon fiber reinforced polyamide, providing a high stiffness-to-weight ratio that ensures crisp shifting even under the heavy chain tension typical of 2x gravel drivetrains. This system is specifically designed for the RX820 and RX825 derailleurs and is optimized for use with double chainring setups.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eKey Features\u003c\/p\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003eGravel-Specific Durability: The OSPW X series is reinforced to handle mud, dust, and vibrations found in gravel racing and CX World Cups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e4 Spring Tension Settings: Allows for a highly customized setup; you can run lower tension for maximum efficiency or high tension for superior chain retention on bumpy terrain.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003eHandbuilt Ceramic Bearings: Standard with high-grade silicon nitride balls that are 400% smoother and 128% harder than steel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003eFurther Drive Technology: Optimized tooth profiles on the alloy pulleys ensure silent operation and precise chain engagement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,4,0\"\u003eCompatibility Note: For the RX825 Di2 version, CeramicSpeed specifically recommends using only the H (High) spring tension hole for optimal electronic shifting performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"6\"\u003eSpecifications\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003eCompatibility: Shimano GRX RD-RX820 (Mechanical) and RD-RX825 (Di2) 12-speed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003eConstraint: Only compatible with 2x-specific derailleurs. (For the 1x-specific RX822, a different pulley wheel set is used).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003eMax Cassette Size: Supports up to a 36T cassette.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003ePulley Setup: 13-tooth upper \/ 19-tooth lower.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003eBearing Options: Standard Ceramic or Coated (Lifetime Warranty).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\"\u003eTypical Components Included\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003eComplete OSPW X for Shimano GRX 2x12 system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003eCeramicSpeed Pulley Oil (15ml).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003eSticker sheet and installation guide.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ceramic Speed","offers":[{"title":"Black \/ Standard Ceramic","offer_id":54272261325172,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Black \/ Coated Ceramic","offer_id":54272261357940,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Red \/ Standard Ceramic","offer_id":54272261390708,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Red \/ Coated Ceramic","offer_id":54272261423476,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Gold \/ Standard Ceramic","offer_id":54272261456244,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Gold \/ Coated Ceramic","offer_id":54272261489012,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Blue \/ Standard Ceramic","offer_id":54272261521780,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true},{"title":"Blue \/ Coated Ceramic","offer_id":54272261554548,"sku":null,"price":80240.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1991\/6660\/files\/113777_113781.webp?v=1775217678","url":"https:\/\/velorays.com\/products\/ospw-x-for-shimano-grx-2x12","provider":"Velorays","version":"1.0","type":"link"}