A Reliable Motor that Makes Biking Fun
I've had the product for 5 months now, and I'm up to 1250 miles of road biking with my Trek hybrid. The BBS02 has been trouble-free and a blast to ride. I live in a hilly area, and I used to avoid the big hills. Now the hills are as fun as the flats: I set the motor in assist level 1 except when climbing, where I use the throttle for 15-second bursts to catch my breath. A Lekkie Bling Ring up front is a good match to a 9-speed rear derailuer: at a normal cadence, I can go anywhere from 8 to 25 mph. The shark pack battery is good for about 40 miles at this pace. One screw into the frame was not sufficient to hold the battery, so I ended up zip-tying the pack tight to the frame.
It is very good. I had a couple of problem.
1. My bottom Bracket was 73. So I needed longer bolts than they supplied. I purchase a 5 x 20mm bolt. Also needed about 5mm of spacers (4 small washers). Be sure to read about this. If you have a 73mm bottom bracket you will need these.
2. I also purchased the special tool bottom bracket tool so I could torque the the locknut down properly 30 lb ft. I highly recommend that you Torque thislocknut and the Crank arms to the correct torque.
You may also need blue locktight for a few parts.
The only other issue had to do with the connectors between the battery.
If make sure you have connectors. I purchase the ones xt90s connectors: http://lunacycle.com/batteries/connectors/xt90-s-connector-set-with-pigtails/
These seem very nice.
Now that it is all done it is working great.
Will probably purchase a 2nd one soon. Should be easier the 2nd time.