Bare knuckle performance
Bare Knuckle Performance, axle adjuster kit. FXD logo
Bare Knuckle Performance, axle adjuster kit. FXD logo
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With FXD logo engraved black anodized aluminum adjustment plate on the rear. - Eliminates all associated axle adjustment problems with one easy to install kit - Axle block made of polished 304 stainless steel - Unique hash mark system for easy alignment of wheel; belt / chain - 3/8-24 stainless steel stud & high quality chrome nyloc nuts and washers. OEM replacement reference 45991-92; 41113-90; 41572-92
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Why buy from Forty5°
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Not sure it fits?
Ask on WhatsAppPick your bike at the top of the page to see which parts are listed for it. For anything not listed, send us your VIN on WhatsApp and we'll confirm the fit before you order.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp Tuesday to Sunday, 11am–7pm.