{"product_id":"vortex-511zk","title":"Vortex Aluminum Rear Sprocket 520 — Black (511ZK)","description":"\u003cp\u003eVortex aluminum rear sprockets are 100% CNC-machined performance replacements that reduce rotating mass compared to stock steel, available in 420 and 525 chain pitches in black and silver anodized finishes. A unique tooth profile and weight-saving cutouts make them a straightforward drivetrain upgrade for street and track riders.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e100% CNC-machined aluminum for improved concentricity over cast or stamped alternatives\u003c\/li\u003e\n\u003cli\u003eLightweight construction reduces rotating mass compared to OEM steel sprockets, supporting faster acceleration response\u003c\/li\u003e\n\u003cli\u003eUnique tooth design extends sprocket service life\u003c\/li\u003e\n\u003cli\u003eWeight-saving cutouts further reduce rotating weight\u003c\/li\u003e\n\u003cli\u003eAnodized finish in black and silver; covers 420 and 525 chain pitches\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpec:\u003c\/strong\u003e Position: Rear · Teeth: 38 · Material: Aluminum · Finish: Black · Chain Pitch: 520\u003c\/p\u003e\n\u003c!--GARA-FIT-START--\u003e\u003cdiv class=\"gara-fit-desc\"\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eKawasaki:\u003c\/strong\u003e KLX400 2003\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuzuki:\u003c\/strong\u003e DR Z250 2001–2007 · DR Z 400 E 2000–2007 · DR Z 400 S 2000–2025 · DR Z 400 SM 2005–2025 · DR Z4S 2025–2026 · DR250 1990–1993 · DR350 1990–1999 · DR 350 SE 1996–1999 · RM Z 250 2007–2026 · RM Z 450 2005–2025 · RM 125 1980–2009 · RM 250 1983–2012 · RM Z 250 1982 · RMX250 1989–1998 · RMX450 2010–2019 · RS175 1980–1982\u003c\/p\u003e\n\u003c\/div\u003e\u003c!--GARA-FIT-END--\u003e","brand":"Vortex","offers":[{"title":"38T","offer_id":48600140415130,"sku":"511ZK-38","price":67.11,"currency_code":"USD","in_stock":true},{"title":"44T","offer_id":48600140447898,"sku":"511ZK-44","price":67.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/6166\/7738\/files\/0e19f7bb0fe7c5764dc1adf32e30db94L_a702f341-865c-4718-848c-8ed87646859f.png?v=1782955240","url":"https:\/\/garamoto.com\/products\/vortex-511zk","provider":"GARA","version":"1.0","type":"link"}