![PTM Watersports KNB – 050 Replacement Knob – Black [P12848-36 BK]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622994/ptm-watersports-knb-050-replacement-knob-black-p12848-36-bk.webp)
Description
KNB – 050 Replacement Knob – Black
The KNB-050 ABS knob with a 3/8 collar and a threaded brass connecting insert is the black replacement knob for the popular VR-140 Pro and PXR mirror systems.
Available in Midnight Black only.
*Sold as an Individual
![PTM Watersports Mirror/Bracket Kit w/VR-140 PRO Mirror ZXR-360 (Titanium Grey) [P12848-2360TEBGR]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622890/ptm-watersports-mirror-bracket-kit-w-vr-140-pro-mirror-zxr-360-titanium-grey-p12848-2360tebgr.webp)
![PTM Watersports Mirror/Bracket Kit w/VR-140 Elite Mirror ZXR-360 (Black) [P12848-1360TEBBK]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622890/ptm-watersports-mirror-bracket-kit-w-vr-140-elite-mirror-zxr-360-black-p12848-1360tebbk.webp)
![PTM Watersports Mirror/Bracket Kit w/VR-140 PRO Mirror ZXR-300 (Silver) [P12848-2300TEBCL]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622890/ptm-watersports-mirror-bracket-kit-w-vr-140-pro-mirror-zxr-300-silver-p12848-2300tebcl.webp)
![PTM Watersports Mirror/Bracket Kit w/VR-140 PRO Mirror ZXR-320 (Silver) [P12848-2320TEBCL]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622890/ptm-watersports-mirror-bracket-kit-w-vr-140-pro-mirror-zxr-320-silver-p12848-2320tebcl.webp)
![PTM Watersports KNB-17 Replacement Knob f/UCX-17 PRO Mirror – Black [P13157-105 BK]](https://www.micrometerx.com/wp-content/uploads/2025/8/1756622994/ptm-watersports-knb-17-replacement-knob-f-ucx-17-pro-mirror-black-p13157-105-bk.webp)
