{"product_id":"sram-derailleur-gx-dh-7-speed-medium-cage","title":"Sram Derailleur GX DH 7 Speed Medium Cage","description":"The SRAM GX DH 7-speed rear derailleur (Medium Cage) is a purpose-built gravity component designed for downhill racing and bike park riding. Built to handle high speeds and rough terrain, it delivers precise, quiet shifting with maximum chain stability when it matters most.\u003cbr\u003e\r\n\u003cbr\u003e\r\nEngineered with SRAM’s proven X-Horizon™ design, it minimises unwanted movement, reduces shift effort, and eliminates “ghost shifting”—keeping your drivetrain consistent on rough descents. The roller bearing clutch further stabilises the chain, reducing slap and noise so you can stay focused on the trail.\u003cbr\u003e\r\n\u003cbr\u003e\r\nThe medium cage layout is optimised specifically for DH setups, offering the right balance of chain tension and ground clearance for aggressive riding.\u003cbr\u003e\r\n\u003cbr\u003e\r\n\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003cbr\u003e\r\n\u003cbr\u003e\r\nDH-Specific 7-Speed Design: Optimised gear range for downhill racing and bike park use.\u003cbr\u003e\r\nX-Horizon™ Architecture: Reduces ghost shifting and improves shift accuracy.\u003cbr\u003e\r\nRoller Bearing Clutch: Keeps the chain stable and quiet on rough terrain.\u003cbr\u003e\r\nCage Lock™ Feature: Makes wheel removal and installation quick and easy.\u003cbr\u003e\r\nDurable Alloy Construction: Built to withstand heavy impacts and hard riding.\u003cbr\u003e\r\n\u003cbr\u003e\r\n\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003e\r\n\u003cbr\u003e\r\nSpeed: 7-speed (DH-specific)\u003cbr\u003e\r\nCage: Medium cage\u003cbr\u003e\r\nMax Cog Size: ±25–28T\u003cbr\u003e\r\nTechnology: X-Actuation™, X-Horizon™, Roller Bearing Clutch, Cage Lock™\u003cbr\u003e\r\nPulley Wheels: 12T X-SYNC™\u003cbr\u003e\r\nMaterial: Aluminium cage with steel hardware\u003cbr\u003e\r\nWeight: ±260g\u003cbr\u003e\r\nUse: Downhill \/ Freeride\u003cbr\u003e\r\n\u003cbr\u003e\r\n\u003cstrong\u003eWho Is This Best Suited For?\u003c\/strong\u003e\u003cbr\u003e\r\n\u003cbr\u003e\r\nIdeal for downhill racers and gravity riders running a dedicated DH drivetrain. Perfect for bike park laps, racing, and aggressive descending where chain stability, durability, and precise shifting under load are critical.","brand":"Sram","offers":[{"title":"Default Title","offer_id":44212618559548,"sku":"00.7518.129.000","price":2630.0,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2261\/8940\/files\/23051_blacksidel-3.webp?v=1776709732","url":"https:\/\/www.olympiccycles.co.za\/products\/sram-derailleur-gx-dh-7-speed-medium-cage","provider":"Olympic Cycles","version":"1.0","type":"link"}