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HP Velotechnik "StreetMachine GTe", 2019 model.

This bike will be the host machine for the e-components originally on the eG20 bike The main difference between the Bacchetta G20 and the HP Velotechnik StreetMachine is that the latter has a full suspension, which will make it substantially safer at speeds over 15MPH on poorer quality surfaces. It will also be more comfortable. The under-seat-steering (USS) also provides a better view of the road ahead. This bike is really the culmination of my estimated 60,000 miles on various human-powered land-based vehicles. Our shared german heritage is coincidental.

HJ on "Stella" after bringing her home, May 2020.

First 'double-digit' ride. The view from Stella, pulled up at 38th and Chicago, Minneapolis. 1 June 2020. Notice the completely unobstructed forward view while reclining comfortably on the StreetMachine's seat.






Sample Trip Stats


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Notes &






Stella Workstand

Photo of Stella's front boom on mockup workstand. The boom inner tube (black part) has a diameter of 2.097", and will be used as the main support for the front of the bike. It's a perfect fit for the rubber mounts from the old Seph/Les bike rack permanently seized onto their VW. These rubber mounts are designed to fit onto stock 1" (OD) pipe.

The rear part of Stella will be supported by a rear rack cobbled together from parts I've scavenged previously from other bikes or Erik's dumpster. This photo shows the back end of the bike with no rack installed yet, supported by a rubber bumper holding the rear rim.

The rear components which equate to an upright bike's chainstays are aluminum tubes with a very slight taper, becoming smaller towards the rear axle. The top tubes vary from slightly more than 7/8" diameter to slightly less. If we were to use Jubilee clips as attachment points for the rear rack, the 7/8" spec would probably be about right. Remember that the chainstay assembly moves independently of the seat assembly (due to the rear suspension), so do not use fixed supports that tie the two together, as many traditional rear racks do.











There are two threaded inserts for M? screws in the top center of the seatback. The inserts are located in a recessed channel, so any bolt heads or other parts used to fasten a headrest here would be hidden (and leveled) by the seat's foam cushion. The velcro holds the seat cusion to the seat itself. I'll use a sharp knife to remove the velcro in the actual channel, leaving two tabs, which will be adequate to keep the top of the foam cushion from flopping around.

I plan to modify the carbon fiber headreast I made for the G26 to fit in this channel and be adjustable with a limited amount of vertical movement. The idea is to have the headrest pad fit below the helmet, so it's actually a 'neckrest' instead. This has worked very well on the G26 with the laid-back seat, where it came in handy for the occasional need to rest on long trips.









Battery Mounts

Photo of eStreetMachine_motor_and_battery_rail










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