Thursday, October 18, 2012

Evolution of the StreetFox Tadpole Trike


From the Builders Gallery:  "This started out as a StreetFox. Every time I rode her I went home and started modifying. Here's where it is today."

Another great handmade tadpole trike built from our own AtomicZombie do-it-yourself plan!


The StreetFox Recumbent Trike is a fast and comfortable version of the classic "tadpole" style trike (two wheels in the front), which includes rear suspension, three wheel braking, and 26 inch rear wheel for optimal gear range. The StreetFox looks and handles as good as any commercially produced trike, and can be completely made using commonly available and inexpensive bicycle components and some square tubing. Not one single machined part is needed. The StreetFox has an adjustable bottom bracket so it can fit riders of most heights, from 5 feet to well over 6 feet tall. Due to the rugged construction and use of sturdy 14 mm axle, 48 spoke front wheels, the StreetFox can easily accommodate riders over 250 pounds.

Because this project only requires a basic welder, an angle grinder and a hand drill, the StreetFox can be built by anyone with the desire to put a little effort into this rewarding hobby. Because of the simple mono tube main frame, the StreetFox is highly customizable, allowing the builder to alter the plan to suit his or her own needs, or simply to try new ideas. 


The most complex part of the trike is obviously the steering, but the StreetFox uses commonly available and "bullet proof" BMX wheels and hubs, so you don't need to source hard-to-find, expensive front wheel parts. All three wheels have standard bicycle brakes and cables as well, so you can find most of your parts by salvaging old bicycles or at most bicycle stores.

Every step of the build is detailed in high resolution photos, with clear instructions on how to calculate critical angles and lengths based on the parts you have on hand. The final product is a very sleek looking tadpole style trike that looks professionally built and rides like a dream. Enjoying the scenery on a comfortable recumbent trike is like sitting in your favorite chair, but you can always put your ankle to the pedals and get the wind in your hair because the StreetFox is as fast as it is comfortable.

Take a look at our Builder's Gallery to see other StreetFox examples, including many creative modifications to the plan. Our international builders community ranges from students to retired engineers, but they all have one thing in common - the desire to build their own stuff!

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