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View some recent custom trike builds
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 Build Your Own Custom Trike Almost as soon as we made the official announcement of the Utah Trikes Quad, we got enquiries about power assist options. Well, the good news was that we had been working with some gas assist options already. We posted one of the early prototypes on our articles page a while back. Well, after much more testing and the help of several local Quad customers whoe were willing to do a lot of testing for us, we have finally acheived what we wanted.  One of the first things that we learned in developing the Gas option for the Quad was that the Nuvinci and the motor needed to be joined together on the rear axle assembly. Here you can see the right side of the motor assembly and two of the three chains. Here you can see the left side of the motor assembly and the primary drive change from the Nuvini mid-drive transmission. You can tell that the placement of the whole setup has to be very precise because of the clearance issues. You can also see that for our final version we have moved the seat stays to the motor mount, which shifts part of the rider's weight directly to the Quad rear end. The motor slides forward on the axle mount and is secured via the sloted plates and a plate on the bottom of the motor mount. This adjusts the tension of the primary drive train going to the positraction axle. Rear Idlers To keep the pedal chain lined up on the Nuvinci's freewheel it is necessary to keep both sides of the chain lined up with a stacked idler arrangement. The chain tension is set by sliding the idlers towards the rear of the Quad as needed. Power Brace
Clearance The quad has great ground clearance. With no derailleur hanging down and raising the idlers up there is a lot of room.
Nuvinci CVT The Nuvinci CVT transmission is at the heart of our Gas Quad. With a dual freewheel setup you can pedal without the motor, or use the motor without pedaling. Best of all though, you can pedal and use the motor at the same time for max power, speed, and workout. The Nuvinci transmission has no gears and allows you to select the best ratio for power or speed.
Nuvinci Shifter The Nuvinci's shifter is a twist/grip shifter. There are no distinct gear positions, instead you twist it one way for a low ration and the other way for a high ratio. Avid BB7 brakes If you go with gas you need the larger brake pads of the BB7 or Juicy brakes. The BB7 is also easier to adjust than the lower brake options. Avid BB7 brakes The BB7 brakes are adjustable from both sides of the caliper without tools.
Kill Switch The kill switch is mounted to the top of the handlebar mount for easy access.
Double Sprocket The Nuvinci is setup with a double sprocket on the input shaft. The larger sprocket is lined up with the gear reduction box on the motor. The smaller freewheel is connected to the pedal chain. Primary Drive Sprocket The Primary drive sprocket is bolted directly to the Nuvinci transmission.
Check out our catalog for more options on how you can customize your trike 
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