{"product_id":"metron-4d-flat-m-a-s-bar-w-j-bend-extensions","title":"Vision Metron 4D Flat M.A.S. Bar w\/ J-Bend Extensions","description":"\u003cp\u003eThe Metron 4D Flat combines the ergonomics and aerodynamics of Vision's Metron 4D aerobar with a lower hand position and an optional Modular Aero System (MAS) direct-mount clip-on capability, giving triathletes and TT racers more versatility in how they set up their front end.\u003c\/p\u003e\u003cp\u003eThe bar uses Aerodynamic integrated Cable Routing (ACR), which Vision recommends specifically for electronic shifting setups rather than mechanical groupsets. It ships with J-Bend extensions included, with S-Bend available separately, plus a spacer kit, bridge, and computer mount — meaning most of what's needed to get the bar race-ready comes in the box.\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTriathletes and TT racers who want a lower, flatter hand position than a standard integrated aerobar provides\u003c\/li\u003e\n\u003cli\u003eRiders running electronic shifting who want internal ACR cable routing\u003c\/li\u003e\n\u003cli\u003eNot the pick for riders who need a higher stack or want mechanical shifting cleanly integrated — ACR here is built around electronic groupsets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eWhat to Look For\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExtension choice: J-Bend extensions are included; S-Bend is available separately if you prefer that hand position\u003c\/li\u003e\n\u003cli\u003eWidth options: available at 400+10mm, 420+10mm, and 440+10mm — get properly fit rather than assuming a width\u003c\/li\u003e\n\u003cli\u003eDrop and reach: fixed at 125mm drop and 80mm reach with a 2° outward bend — confirm this matches your position before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eBase bar design:\u003c\/strong\u003e The 4D Flat design combines Metron 4D ergonomics with a lower hand position and an optional MAS direct-mount clip-on system for added setup versatility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCable routing:\u003c\/strong\u003e Aerodynamic integrated Cable Routing (ACR) is built in, though Vision specifically recommends it for electronic shifting setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExtensions:\u003c\/strong\u003e J-Bend extensions ship included, with S-Bend available separately — giving riders a hand-position option without needing a different base bar.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWeight and finish:\u003c\/strong\u003e At 733 grams (420mm, J-Bend) or 702 grams (420mm, S-Bend) in a UD carbon finish with gray graphics, weight varies by which extension is fitted.\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eRider Intent Summary\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBiggest strengths: a flatter, lower hand position than standard integrated aerobars, with MAS clip-on versatility built in\u003c\/li\u003e\n\u003cli\u003eTradeoffs: ACR cable routing is optimized for electronic shifting, and the fixed 125mm drop\/80mm reach geometry isn't adjustable after purchase\u003c\/li\u003e\n\u003cli\u003eWhat makes it different: the combination of a flat base bar with an optional MAS clip-on system is a more specific fit solution than most standard aerobars offer\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eVictory's Take\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003eWe recommend the Metron 4D Flat through Victory Bicycle Studio to triathletes who've already determined they want a lower, flatter front end — this isn't a bar to guess your way into without a fit session.\u003c\/p\u003e","brand":"FSA","offers":[{"title":"40cm","offer_id":53552374186291,"sku":"670-0196020030","price":752.3,"currency_code":"USD","in_stock":true},{"title":"42cm","offer_id":53552374219059,"sku":"670-0196021030","price":752.3,"currency_code":"USD","in_stock":true},{"title":"44cm","offer_id":53552374251827,"sku":"670-0196022030","price":752.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3685\/0739\/files\/media_d6d034a1-726d-4fe0-b51b-abb36b61cbad.jpg?v=1782440069","url":"https:\/\/victorybicyclestudio.com\/products\/metron-4d-flat-m-a-s-bar-w-j-bend-extensions","provider":"Victory Bicycle Studio","version":"1.0","type":"link"}