Amazon.com: 15mm-17mm Motorcycle Bike Fork Stem Yoke Mount for Garmin Zumo 595LM 395LM 345LM : Electronics
RAM® X-Grip® Phone Holder with Motorcycle Fork Stem Base – RAM Mounts
Motorcycle Bike Fork Stem Metal Base w/ Ball for Gopro Phone Holder RAM Mount | eBay
Motorcycle Bike Fork Stem Metal Base w/ Ball for Gopro Phone Holder RAM Mount | eBay
Amazon.com: Barbaren 16-18mm Yoke Stem / Fork Stem Mount Base with 1 inch Ball for Motorcycle : Automotive
Amazon.com: WINDFRD Motorcycle Fork Stem Ball Base with B Size 1" Ball for Stems 12mm to 30mm in Diameter, Suitable for Kawasaki, Ducati, Honda, BMW. Compatible with RAM Mount and More :
Amazon.com: Barbaren 13-15mm Yoke Stem / Fork Stem Mount Base with 1 inch Ball for Motorcycle : Automotive