I fitted an Ebay kit 3 years ago to my German Alubike, a full suspension step through hybrid with 700c wheels.
With help from the forum I've gradually upgraded the parts, now keeping just the original lithium iron 36v 10ah battery.
I first changed the KU65 controller for a BMSbattery S06S sine wave controller and lcd display. That was a big improvement, more flexible PAS levels, and a bit quieter.
I've now just changed the front wheel motor from the original Bafang SWXB 250w 36v to a Q100H 350w.
I'd posted a thread about trying to buy one from a UK supplier to save the shipping cost from China, but Dave talked me into just buying the motor and building the wheel myself. Great advice, as always.
I finally followed his recommendations fully and used 14g spokes, and it turned out really well, a very satisfying build with a very true and nicely tensioned rim.
I've just returned from my regular 22 mile run and the difference between the two motors is quite surprising. even though the Q100H is physically so much smaller, it's much quieter and more torquey than the SWXB. It's the 260rpm version running at 36 volts, in a 700c wheel.
I found that PAS level 2 was ample assistance, giving me an average of about 16-18 mph with moderate pedalling. PAS level 5 went up to 20mph plus easily, even on the 36 volts.
The Garmin graphs show the run, and the photo of the lcd panel shows only a quarter of the 10ah used up after 22 miles.
I had also fitted a 328rpm Q100 to my recumbent trike, in a 20" wheel, and was impressed with that too.
They're both small enough to almost be taken as dynohubs, yet more powerful and quieter than the old SWXB.
With help from the forum I've gradually upgraded the parts, now keeping just the original lithium iron 36v 10ah battery.
I first changed the KU65 controller for a BMSbattery S06S sine wave controller and lcd display. That was a big improvement, more flexible PAS levels, and a bit quieter.
I've now just changed the front wheel motor from the original Bafang SWXB 250w 36v to a Q100H 350w.
I'd posted a thread about trying to buy one from a UK supplier to save the shipping cost from China, but Dave talked me into just buying the motor and building the wheel myself. Great advice, as always.
I finally followed his recommendations fully and used 14g spokes, and it turned out really well, a very satisfying build with a very true and nicely tensioned rim.
I've just returned from my regular 22 mile run and the difference between the two motors is quite surprising. even though the Q100H is physically so much smaller, it's much quieter and more torquey than the SWXB. It's the 260rpm version running at 36 volts, in a 700c wheel.
I found that PAS level 2 was ample assistance, giving me an average of about 16-18 mph with moderate pedalling. PAS level 5 went up to 20mph plus easily, even on the 36 volts.
The Garmin graphs show the run, and the photo of the lcd panel shows only a quarter of the 10ah used up after 22 miles.
I had also fitted a 328rpm Q100 to my recumbent trike, in a 20" wheel, and was impressed with that too.
They're both small enough to almost be taken as dynohubs, yet more powerful and quieter than the old SWXB.