{"product_id":"fenrir-motorcycle-bar-end-mirror-adapter-801-0399-aluminum-cnc-anodized-finish-for-internal-thread-handlebars","title":"FENRIR Motorcycle Bar End Mirror Adapter 801-0399 — Aluminum CNC, Anodized Finish for Internal-Thread Handlebars","description":"\u003cstrong\u003eFENRIR 801-0399 is an aluminum, CNC-machined bar end mirror adapter made to bolt directly into handlebars with an internal thread and accept only FENRIR bar-end mirrors.\u003c\/strong\u003e\n\n\u003cp\u003eThis adapter converts handlebars with a factory internal thread into a secure mounting point for FENRIR bar-end mirrors. Machined from aluminum alloy and finished with an anodized surface, the 801-0399 is engineered to match the fit and finish of FENRIR mirrors and to simplify installation with a straight bolt-on design.\u003c\/p\u003e\n\n\u003ch3\u003eWill this adapter fit my motorcycle’s handlebar?\u003c\/h3\u003e\n\u003cp\u003eIf your handlebar has a factory threaded insert inside the open end, the FENRIR 801-0399 will bolt in without modification. It is designed specifically for handlebars that accept internal threaded bar end components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits handlebars with original internal threaded ends.\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-on installation—no cutting or rethreading required.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with handlebars lacking internal threads or with external-threaded bar ends.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this adapter with other brands of mirrors?\u003c\/h3\u003e\n\u003cp\u003eNo — the adapter is purpose-built to interface with FENRIR bar-end mirrors only. The internal geometry, thread pitch and locking method are matched to FENRIR mirror fittings for a correct, vibration-resistant connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExclusive compatibility: made for FENRIR bar-end mirrors.\u003c\/li\u003e\n  \u003cli\u003eAvoids improper fits that can cause looseness or damage.\u003c\/li\u003e\n  \u003cli\u003eEnsures mirror alignment and secure clamping designed by the brand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the adapter made and how durable is it?\u003c\/h3\u003e\n\u003cp\u003eThe 801-0399 is CNC-machined from aluminum alloy for consistent tolerances and strength. An anodized finish protects the surface against corrosion and road wear while giving a refined look that complements FENRIR mirrors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCNC precision machining for repeatable fit and finish.\u003c\/li\u003e\n  \u003cli\u003eAluminum alloy construction for strength with low weight.\u003c\/li\u003e\n  \u003cli\u003eAnodized coating improves scratch and corrosion resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward when your handlebar has the required internal thread: slide the adapter into the bar end and tighten the supplied fastener to secure it. Standard hand tools are usually sufficient; follow torque recommendations from FENRIR to avoid over-tightening.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStraightforward bolt-on process—no special tools required.\u003c\/li\u003e\n  \u003cli\u003eCheck alignment before final tightening to ensure correct mirror positioning.\u003c\/li\u003e\n  \u003cli\u003eConsult FENRIR instructions for torque and mirror mounting steps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The FENRIR 801-0399 adapter is aimed at riders who already own or plan to install FENRIR bar-end mirrors and need a compatible mounting solution for handlebars with internal threads. It’s ideal for motorcyclists seeking a factory-style fit, lightweight durability, and a coordinated look with FENRIR mirror assemblies. If your motorcycle uses different bar-end hardware or mirrors from another brand, this adapter will not be suitable.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this adapter compatible with non-FENRIR mirrors?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The 801-0399 is designed exclusively for FENRIR bar-end mirrors and won’t fit other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special tools to install the adapter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Generally no; standard hand tools are sufficient. Follow FENRIR’s torque guidance for final tightening.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FENRIR","offers":[{"title":"Default Title","offer_id":67593034596537,"sku":"B09WDRRCGB","price":58.8,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/fenrir-adapter-front-view_b014af16-63df-4240-9888-23b8e1cac5f4.jpg?v=1790571213","url":"https:\/\/redleafauto.ca\/products\/fenrir-motorcycle-bar-end-mirror-adapter-801-0399-aluminum-cnc-anodized-finish-for-internal-thread-handlebars","provider":"Redleaf Auto","version":"1.0","type":"link"}