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Greg's Electric Powered Trailer by RodneyLee on September 6, 2010

Table of Contents

Greg's Electric Powered ...... 1

Intro: Greg's Electric Powered Bicycle Trailer ...... 2

Step 1: Specifications ...... 2

Step 2: Bicycle Trailer Notes ...... 3

Step 3: Parts List ...... 3

Step 4: Diagrams ...... 4

Related Instructables ...... 5

Comments ...... 5

http://www.instructables.com/id/Gregs-Electric-Powered-Bicycle-Trailer/ Intro: Greg's Electric Powered Bicycle Trailer Trailer Powered by an electric motor and batteries, this trailer pushes a bicycle around. A gear shift mounts to the handlebars so the rider can select the proper gear on the trailer wheel to get up hills or control speed. The motor is also turned on and off from the gear shift. The frame is a wire basket and aluminum angle stock.

The batteries can be recharged with a standard 12 volt automobile battery charger or other 12 volt chargers. There are no electronic parts. Other containers can be used in place of the wire basket. a piece of extention ladder can also be used for a frame.

Full Permissions granted from Greg as Greg doesn't do internet I am posting for him

Step 1: Specifications Top speed - 19 mph with mountain bike, 23 mph with road bike Range - 12 miles/battery 17 amp hr., up to 4 batteries (48 miles) Weight - 30 lbs. without batteries Cargo Capacity - 100 lbs with 4 batteries, more with fewer batteries Projected cost of materials- $ 850.00 US

**Bicycle Trailer - non motorized

A high quality bicycle trailer can be made using a peice of extension ladder or aluminum angle stock. Containers of various types can be bolted to the trailer top for hauling cargo. Specifications Weight - 15 lbs. Cargo Capacity - 150 lbs. Projected cost of materials - $ 220.00 US

http://www.instructables.com/id/Gregs-Electric-Powered-Bicycle-Trailer/ Step 2: Bicycle Trailer Notes To bend arm - Notch blank as shown, heat bend area with torch before bending to prevent cracking. Batteries- One large battery is cheaper than multiple smaller ones. Multiple smaller batteries allow you to use only the number needed for a particular trip and carry less weight for short trips. Batteries can be mounted under the trailer with nylon straps. Place battery on drive wheel side for traction. Do not leave discharged batteries in freezing temperatures. Downshift completely to turn motor off. If circuit breaker trips (motor stops) down shift one gear to shut off switch then up shift and motor will start. Breaker automatically resets by shutting off power. Use made in U.S.A. parts whenever possible. Avoid Chinese motors and gear boxes. Overloading motor can cause motor to overheat and fail. Downshift or pedal harder to reduce motor load. Motor brushes will need to be replaced occasionally. They are rated for 300 hours of use. They are easy and inexpensive to replace. Mount motor so that brushes are acessable.

Step 3: Parts List Z2 Bicycle Trailer Item # Quantity Req'd Stock Bicycle Parts ( * for non motorized kit ) 1 * 2 rims, 20 x 1 3/8 36 hole, shrader valve 2 * 2 tires, 20 x 1 3/8 3 * 2 tubes, 20 x 1 3/8 shrader valve 4 * 72 and nipples 5 * 2 rimstrips 6 * or items 1-5 plus 14 & 15 (hubs) completely assembled please specify if you wish a different tire and tube width 7 1 freewheel, 35 mm x 1.0 threade, 6-speed, 13-34 teeth 8 1 chain with 9 1 10 1 shift lever, 7-speed 11 1 shifter cable and housing, please specify longer length for recumbents 12 1 spokeguard 13 * 1 wirebasket

http://www.instructables.com/id/Gregs-Electric-Powered-Bicycle-Trailer/ Item # Quantity Req'd Custom Machined Parts ( * for non motorized kit ) 14 *x2 1 non threaded hub with sealed bearings 15 1 threaded hub with sealed bearings 16 * 1 axle, specify frame width 17 1 derailleur hanger 18 1 axle shim 19 1 drive , # 41, 12 tooth, 3/4" bore, must modify to fit narrow chain

Item # Quantity Req'd Aluminum ( * for non motorized kit ) 44 * 1 1/8 x 2 x 2 aluminum angle, sharp corner, 6063, 8' long, frame 45 * 1 1/8 x 1 x 1 aluminum angle, sharp corner, 6063, 6' long min., towing arm

Item # Quantity Req'd Stock Parts ( * for non motorized kit ) 20 * 2 axle bolts, 12 mm x 1.75 x 110 mm, grade 10.9 21 * 2 u-bolts with nuts 22 1 gear motor, 12 volt, 1/6 h.p., 360 rpm 23 1 to 4 batteries, gel cell, 12 volt, 17 or 32 amp hr., deep cycle 24 1 main on/off switch, toggle 25 1 shift cable on/off switch, toggle on/momentary off, (must be modified) 26 24 1/8 x 3/8 stainless steel pop. rivets 27 4 1/4 20 X 5/8 hex hd. bolts and nuts, grade 8 28 11 # 10 - 32 x 3/8 hex hd. bolt grade 8, for rear motor support, and tab washers 29 1 shrink tubing 12" long 30 4 cable ties, nylon 31 4 reusable cable ties 32 1 wing belt, for shifter 33 1 curcuit breaker, 12 volt, 40 amp, auto reset 34 6 wire eyes (for 1 battery, order 4 more for every additional battery) 35 * 2 rod ends, 5/16 dia. 36 * 1 hitch pin clip 37 * 1 5/16 - 18 x 1 1/2" bolt, grad 8, fully threaded 38 * 6 5/16 - 18 hex nuts 39 2 nylon webbing straps (to secure batteries) 2 per battery, 30" long 40 1 battery charger, 12 volt (optional) 41 1 spring for shift cable switch 42 10 tab washers, for fastening basket to frame 43 10 #10 - 32 hex nuts

Step 4: Diagrams Heres the Rest of the Diagrams from Greg, I'll see if he can do a real step by step guide Next I'll upload his Electric Bike plans, hope some of you can build this and even do a better guide

-RodneyLee

http://www.instructables.com/id/Gregs-Electric-Powered-Bicycle-Trailer/ Related Instructables

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Comments

4 comments Add Comment

BillBiker says: Jan 22, 2011. 7:54 AM REPLY As Pickpacket said dangerous, BUT if it used a better hitch system like I saw on another 'able it would be fine for high speeds ;) ! What really got my interested and tickled my brain muscles was the derailler and freewheel! Really cool!

karossii says: Sep 7, 2010. 12:43 PM REPLY Very interesting; but it feels like an incomplete 'ible. Looking forward to the 'real step by step guide' you mentioned in step 4.

http://www.instructables.com/id/Gregs-Electric-Powered-Bicycle-Trailer/ BobS says: Sep 7, 2010. 9:48 AM REPLY How about regulation: full power, power assist (like the ones on the e- bikes), slow speeds?

PickPacket says: Sep 7, 2010. 9:32 AM REPLY Looks dangerous as hell, but excellent build!

http://www.instructables.com/id/Gregs-Electric-Powered-Bicycle-Trailer/