{"product_id":"kogel-kolossos-speed-xplr-13-speed-custom-ospw","title":"Kogel Kolossos Speed XPLR 13-Speed Custom OSPW with Cerakote Finish","description":"\u003cp\u003eThe \u003cstrong\u003eKogel Speed Kolossos\u003c\/strong\u003e is an oversized pulley wheel system (OSPW) built specifically to replace the stock derailleur cage on \u003cstrong\u003eSRAM XPLR AXS 1x13\u003c\/strong\u003e gravel drivetrains, finished in a custom black \u003cstrong\u003eCerakote coating\u003c\/strong\u003e. It's a targeted drivetrain upgrade, not a full derailleur replacement: the cage bolts onto your existing SRAM XPLR AXS rear derailleur and swaps in larger, ceramic-bearing pulley wheels designed to reduce chain friction as the chain wraps through the derailleur cage.\u003c\/p\u003e\n\u003cp\u003eThe pulley cage uses a \u003cstrong\u003e14-tooth upper \/ 20-tooth lower\u003c\/strong\u003e pulley combination, larger than SRAM's stock pulleys, which lets the chain travel in a straighter, less-flexed path through the derailleur. The lower pulley is offset specifically to match SRAM's XPLR chainline, a detail unique to this XPLR-specific version of the Kolossos rather than a generic cross-brand cage. The cage itself is \u003cstrong\u003eCNC-machined aluminum\u003c\/strong\u003e, the pulleys run on \u003cstrong\u003efull ceramic, corrosion-resistant bearings\u003c\/strong\u003e, and the complete unit weighs approximately \u003cstrong\u003e98 grams\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eGravel riders and racers already running a \u003cstrong\u003eSRAM XPLR AXS 1x13\u003c\/strong\u003e drivetrain who want to optimize that specific system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRiders focused on marginal drivetrain efficiency gains — time trial, gravel racing, or performance-oriented gravel riding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnyone replacing a worn or damaged stock XPLR derailleur cage who wants a ceramic-bearing upgrade at the same time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNot a fit for riders on Shimano or non-XPLR SRAM drivetrains, since this cage is application-specific, or for riders who don't want to pay a premium for incremental friction reduction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eWhat to Look For\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm your rear derailleur is a \u003cstrong\u003eSRAM XPLR AXS\u003c\/strong\u003e model before ordering — this cage is not cross-compatible with other 1x or 2x SRAM derailleurs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConsider your riding conditions: \u003cstrong\u003efull ceramic, corrosion-resistant bearings\u003c\/strong\u003e matter most to riders who train and race in wet or gritty gravel conditions where bearing durability is tested\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeigh the cost of a component-level upgrade against your other drivetrain priorities — this is a refinement to an existing groupset, not a substitute for chain, cassette, or chainring wear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe cage is \u003cstrong\u003eCNC-machined aluminum\u003c\/strong\u003e rather than cast or molded, which allows tighter tolerances between the pulleys and cage plates — tighter tolerances mean less lateral pulley play and a more stable chain path under load. The \u003cstrong\u003eCerakote finish\u003c\/strong\u003e adds a hard, corrosion-resistant surface layer suited to gravel riding, where mud, grit, and moisture are routine.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e14T\/20T oversized pulley\u003c\/strong\u003e sizing is the core of the system: larger pulleys reduce how sharply the chain bends as it moves through the derailleur cage, which lowers frictional losses compared with SRAM's smaller stock pulleys. The lower pulley's offset is machined to align with SRAM's XPLR chainline specifically, keeping the chain running straight through the cage rather than at an angle.\u003c\/p\u003e\n\u003cp\u003eBoth pulleys spin on \u003cstrong\u003efull ceramic bearings\u003c\/strong\u003e, chosen for corrosion resistance as much as low rolling friction — a relevant distinction for a gravel-specific product that will see repeated exposure to water and abrasive debris.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eRider Intent Summary\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBiggest strengths:\u003c\/strong\u003e Purpose-built fit for SRAM XPLR AXS 1x13, oversized 14T\/20T pulleys, full ceramic corrosion-resistant bearings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTradeoffs:\u003c\/strong\u003e Drivetrain-specific — only compatible with SRAM XPLR AXS rear derailleurs; adds cost on top of a complete groupset\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes it different:\u003c\/strong\u003e The lower pulley offset is machined specifically to SRAM's XPLR chainline, a fitment detail unique to this version of the Kolossos\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eVictory's Take\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWe see the Speed Kolossos as a smart, targeted upgrade for riders already committed to SRAM XPLR AXS who want to refine a system they already trust rather than replace it. At Victory Bicycle Studio, we recommend confirming your current derailleur and chainline setup with us before ordering, since fitment here is drivetrain-specific.\u003c\/p\u003e","brand":"Kogel","offers":[{"title":"Default Title","offer_id":53852588245299,"sku":"Kolossos XPLR Custom OSPW","price":650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3685\/0739\/files\/kogel-kolossos-speed-derailleur-cage-custom-colors-onyx-black.jpg?v=1786656127","url":"https:\/\/victorybicyclestudio.com\/products\/kogel-kolossos-speed-xplr-13-speed-custom-ospw","provider":"Victory Bicycle Studio","version":"1.0","type":"link"}