This build is going to be a little different than the standard fare china girl. Upon first laying eyes on this bike I instantly proclaimed it an electric china girl, and so here we are.
It's based on a Sondors eBike (Pacific Storm inc). When this bike first came on the scene last year, it was billed as the worlds most affordable eBike. The total cost for a complete Storm eBike was so amazingly low compared to the competition, it caused a massive disturbance in the force, and instantly became a sensation in the eBike world which is still ongoing. I paid $693 shipped to my door direct from China. This price is comparable to my first china girl build.
This is the basic bike as it comes out of the box. Perfect for a beginner, and also perfect for advanced builders like myself.
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2FNew%2520Storm_zps3z1nlpln.jpg&hash=27ab5afb2628329fb6f4101d3e2745da)
The object here is to personalize the bike to my liking, and gain performance, and range comparable to a 50cc china girl.
This is a list of parts needed to duplicate this build,
A set of Maxxis Hook Worm tires, and tubes
Half grip twist throttle, I don't like the stock paddle throttle
48 volt, 30 amp hour triangle battery pack. Stock is a 36v 8.8 ah bottle pack
20 amp controller relocated outside the battery box. Stock is 15 amp
LED eBike headlight, and taillight. Bike comes with no lights.
Frame mounted on/off switch for lights.
KT3 LCD computer display. Bike only comes with a LED idiot light power meter
Planet Bike fenders. Bike comes with no fenders.
3 speed freewheel 16/19/22T. Bike comes with single speed 16T freewheel.
170mm crank set for square taper spindle w/50T sprocket. Stock is 40T
6/7 speed hanger mount derailleur
7 speed Grip Shift
3/32 bicycle chain
Shifter cable housing
Plus assorted raw stock for bracket fabrication, electrical connectors, and shop supplies.
In order to mount the big triangle battery it was necessary to fabricate a frame mounted platform to keep the weight of the 15lb battery off the plastic box. This battery used all the available space in the box so it became necessary to relocate the controller to the seat post tube on the outside of the box. I used a pair of china girl rear motor mounts for this purpose. The lights came with no mounts so it was necessary to fabricate a custom headlight mount. The taillight was easier, I just wire tied it under the seat. I custom mounted and wired an illuminated button switch, drilled into the plastic box to control the lighting. Converting to a 3 speed was actually pretty easy. I only needed to spread the drop outs 1/8", and add a thick washer to accommodate the 3 speed freewheel. Although you can buy special hand grips for Grip Shifters I customized the stock grips with a hacksaw, and sharp knife to fit. I also had to custom fit the fenders, but about all that involved was fabricating custom stays, and a couple of brackets.
Stock the bike was limited to 20 mph, and 350w. Range was 20 to 30 miles. Pedal assist was only useful up to about 16 mph. After that the cadence was too fast for old people like me.
Now I have 850w and can pedal assist to 28 mph which is top speed with assist. Range is now greatly improved with a full throttle no assist range of 35 miles estimated, a 20 mph cruising speed range of about 80 miles. Cruising at normal bicycle speeds, range is estimated over 100 miles. I use a 5 amp charger which charges a fully discharged battery in 6 hours, but this huge battery seldom takes more than 3 hours to charge.
The bike now has throttle, 5 level pedal assist, and electronic cruise control. The throttle is always active, and overrides the other modes. There's zero vibration, and relatively quiet operation. In over a 1000 miles I haven't experienced one single mechanical, or electrical failure. Total cost to date is a little less than $2000, which is a few hundred less than my most expensive china girl build, which was Stunner.
I named this bike Fatty
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520Speed%2520Build_zps0kb9ajnt.jpg&hash=863352a9d51270a610f9296737554d44)
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520Speed%2520Storm_zpsupbjwjt9.jpg&hash=f34e6be4230996ad5456c45a8153884b)
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520Speed%2520Storm%2520Side%2520View%2520a_zpsdpndg6h3.jpg&hash=9ddd4872cc1786550d4db4e688d07f12)
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520speed%2520rear%2520view%2520a_zpsqw7r2apk.jpg&hash=dd467b06ba6ff26126b5cde49555e4bd)
It's based on a Sondors eBike (Pacific Storm inc). When this bike first came on the scene last year, it was billed as the worlds most affordable eBike. The total cost for a complete Storm eBike was so amazingly low compared to the competition, it caused a massive disturbance in the force, and instantly became a sensation in the eBike world which is still ongoing. I paid $693 shipped to my door direct from China. This price is comparable to my first china girl build.
This is the basic bike as it comes out of the box. Perfect for a beginner, and also perfect for advanced builders like myself.
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2FNew%2520Storm_zps3z1nlpln.jpg&hash=27ab5afb2628329fb6f4101d3e2745da)
The object here is to personalize the bike to my liking, and gain performance, and range comparable to a 50cc china girl.
This is a list of parts needed to duplicate this build,
A set of Maxxis Hook Worm tires, and tubes
Half grip twist throttle, I don't like the stock paddle throttle
48 volt, 30 amp hour triangle battery pack. Stock is a 36v 8.8 ah bottle pack
20 amp controller relocated outside the battery box. Stock is 15 amp
LED eBike headlight, and taillight. Bike comes with no lights.
Frame mounted on/off switch for lights.
KT3 LCD computer display. Bike only comes with a LED idiot light power meter
Planet Bike fenders. Bike comes with no fenders.
3 speed freewheel 16/19/22T. Bike comes with single speed 16T freewheel.
170mm crank set for square taper spindle w/50T sprocket. Stock is 40T
6/7 speed hanger mount derailleur
7 speed Grip Shift
3/32 bicycle chain
Shifter cable housing
Plus assorted raw stock for bracket fabrication, electrical connectors, and shop supplies.
In order to mount the big triangle battery it was necessary to fabricate a frame mounted platform to keep the weight of the 15lb battery off the plastic box. This battery used all the available space in the box so it became necessary to relocate the controller to the seat post tube on the outside of the box. I used a pair of china girl rear motor mounts for this purpose. The lights came with no mounts so it was necessary to fabricate a custom headlight mount. The taillight was easier, I just wire tied it under the seat. I custom mounted and wired an illuminated button switch, drilled into the plastic box to control the lighting. Converting to a 3 speed was actually pretty easy. I only needed to spread the drop outs 1/8", and add a thick washer to accommodate the 3 speed freewheel. Although you can buy special hand grips for Grip Shifters I customized the stock grips with a hacksaw, and sharp knife to fit. I also had to custom fit the fenders, but about all that involved was fabricating custom stays, and a couple of brackets.
Stock the bike was limited to 20 mph, and 350w. Range was 20 to 30 miles. Pedal assist was only useful up to about 16 mph. After that the cadence was too fast for old people like me.
Now I have 850w and can pedal assist to 28 mph which is top speed with assist. Range is now greatly improved with a full throttle no assist range of 35 miles estimated, a 20 mph cruising speed range of about 80 miles. Cruising at normal bicycle speeds, range is estimated over 100 miles. I use a 5 amp charger which charges a fully discharged battery in 6 hours, but this huge battery seldom takes more than 3 hours to charge.
The bike now has throttle, 5 level pedal assist, and electronic cruise control. The throttle is always active, and overrides the other modes. There's zero vibration, and relatively quiet operation. In over a 1000 miles I haven't experienced one single mechanical, or electrical failure. Total cost to date is a little less than $2000, which is a few hundred less than my most expensive china girl build, which was Stunner.
I named this bike Fatty
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520Speed%2520Build_zps0kb9ajnt.jpg&hash=863352a9d51270a610f9296737554d44)
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520Speed%2520Storm_zpsupbjwjt9.jpg&hash=f34e6be4230996ad5456c45a8153884b)
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520Speed%2520Storm%2520Side%2520View%2520a_zpsdpndg6h3.jpg&hash=9ddd4872cc1786550d4db4e688d07f12)
![](/proxy.php?image=http%3A%2F%2Fi1308.photobucket.com%2Falbums%2Fs613%2Fbiknut%2F3%2520speed%2520rear%2520view%2520a_zpsqw7r2apk.jpg&hash=dd467b06ba6ff26126b5cde49555e4bd)
Last edited: