Clark W. Griswold
Join Date: Mar 2014
Location: ,location, location
Posts: 13,525
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
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The 6100 motor isn't one of the best feelings on the motor but it shouldn't jerk you might get a little extra power as you put on the pedals but it wouldn't be a jerk just the normal acceleration. If it is doing it only when you have assist on it is probably just the assist kicking in but if not then you may consider bringing it back to the shop you purchased from. At least where I work we offer two free tune ups in the first 50-100 miles or so and then usually at the year mark.