Thanks to Dave Bagne

Jacobsen proto motorbike about a 1951 & were known to have made only eight kits mounted different MFG bikes. The experiment was successful the company elected to disband the project. Mikey Bike in Chicago had sold one of these that used a Clutch which was the same as Marman & Jack & Hintz used. I elected to use the centrifugal With chain drive, strong running engines. Mine is a 3 1/2 with lots of get & go


jacobsen_002.JPG (182344 bytes) jacobsen_003.JPG (218748 bytes) jacobsen_004.JPG (175710 bytes) jacobsen_005.JPG (206925 bytes) jacobsen_006.JPG (218147 bytes)

jacobsen_007.JPG (217061 bytes) jacobsen_008.JPG (218094 bytes) jacobsen_009.JPG (181390 bytes) jacobsen_010.JPG (159109 bytes) jacobsen_012.JPG (155969 bytes)

jacobsen_013.JPG (181447 bytes) jacobsen_014.JPG (192091 bytes) jacobsen_015.JPG (159868 bytes) jacobsen_016.JPG (178959 bytes)


1940's Jacobsen