Bare knuckle performance
Bare Knuckle Performance, Axle adjuster plate kit. US flag
Bare Knuckle Performance, Axle adjuster plate kit. US flag
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FXD logo & ''Bare Knuckle Performance'' engraved. Black anodized aluminum construction. Time to update your swingarm with some precision detailing. A simple 5 minute job to exchange your stock steel plates with the new aluminum adjustment plates. Complete with adjustment plates and chrome plated washers and nyloc nuts. OEM replacement reference 41113-90
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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.