Your basic bare-bones parts list might look something like this:
24VDC motor with gear drive #DCM-2445; $45.00(2) 12VDC 18AH batteries #GC-217; $53.00 eachElectric speed control #TXL-1; $12.75Disc brake #CPR-1; $5.75Horn #ES-11; $4.20
Note: You can locate additional bike-related parts from dealers like Nashbar. Once you’ve obtained the parts, it’s just a matter of fitting everything on your bike frame. Don’t want to struggle with a large DIY headache? You can still add some electric zip to your drive with a Currie Technologies conversion kit. As for performance, an average bike modified with these parts should see a top speed of approximately 10-15 mph, with a range of 10-20 miles. Stay safe and share the road.