Kawasaki Sumo Fat Build - Bafang 48V Mid

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ebinary   100 W

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Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by ebinary » Aug 04 2015 8:17pm

Just thought I'd do a quick post on my latest build. While I was waiting for my son's Sondors to arrive, I got jealous and finally built a replacement for my tried-and-true Montegue Folder (with an original Currie USPD drive in case you are wondering how long I've been eBiking) ;-)

The new beast is built on the Kawasaki Sumo 4.0 donor ($549 shipped Amazon). It is a heavy donor and probably only a step up from the Mongeese of the world, but I've always ridden Kawasaki motorcycles, so I don't see that I have much of a choice ;-)

Bottom line: It's everything I've ever wanted in an ebike, and I've owned many an ebike.

NOTE - EVEN WITH THE CALFORNIA EBIKES FAT KIT, YOU WILL HAVE TO CHOP OFF 20mm OF BOTTOM BRACKET. Doug's kit is meant for 100mm BBs but the Kawi has a 120.

Parts:

Kawasaki Sumo 4.0 - bottom bracket chopped to 105mm
8fun Mid Drive 750W 48V - w/ California ebike fat bike mod
52T front ring for speed (31MPH on the flat, 20% grade at 16MPH, 210lbs rider)
48V down tube battery
Blingification: Spoke POV RGB LED lights that create an animated 72dot per radian image at speeds over 7mph :) (ebay: $95/wheel)

The finished product
Image

Hacking the bottom bracket
Image

Rider view
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Tire size comparison to Kawasaki KLR 650 (motorcycle is the small one)!
Image
Last edited by ebinary on Aug 12 2015 12:15pm, edited 2 times in total.
Eric

Shredder - Leaning three-wheeled chopper: 36V, Lynch Motor, Differential dual-wheel drive, 33Ah SLA.
Currie USPD Montague Folding Mountain Bike: 4 x 33V DeWalt, Crystalyte 35A, BMC 750W motor.
Kawasaki Sumo 4.0 Fat Bike: Bafang Mid Drive 48V 750W
Coming Soon (for my son) - Sondors Storm

dumbass   100 kW

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Location: Chicago Western Sub.

Re: Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by dumbass » Aug 04 2015 10:41pm

I have the same setup on my Dole but I use a 34t ring with a top speed of 25mph. Of course the bike has been lightened from the stock model. But like you I am also 210#s. I have my bottom tube pack on order and currently using lifepo4 packs mounted to a very nice alm. fat bike rack. I hope to reduce the overall weight by another 25# by changing the pack.

Enjoy your ride I sure am, Bob

DAND214   1 GW

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Location: About 1200 miles south of Chicago, in sunny/rainny Port Richey, Florida!

Re: Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by DAND214 » Aug 04 2015 11:13pm

Looks nice. Must be in the wrong listing. Your not selling it are you?

Dan

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ebinary   100 W

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Joined: Dec 12 2007 11:15am

Re: Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by ebinary » Aug 04 2015 11:18pm

Oops - didn't mean to file this post in the For Sale Section. I think I'll copy the post to the proper section.

Thanks to the admin who moved this!
Last edited by ebinary on Aug 05 2015 6:02am, edited 1 time in total.
Eric

Shredder - Leaning three-wheeled chopper: 36V, Lynch Motor, Differential dual-wheel drive, 33Ah SLA.
Currie USPD Montague Folding Mountain Bike: 4 x 33V DeWalt, Crystalyte 35A, BMC 750W motor.
Kawasaki Sumo 4.0 Fat Bike: Bafang Mid Drive 48V 750W
Coming Soon (for my son) - Sondors Storm

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ebinary   100 W

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Posts: 145
Joined: Dec 12 2007 11:15am

Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by ebinary » Aug 04 2015 11:20pm

deleted
Last edited by ebinary on Aug 05 2015 6:01am, edited 1 time in total.
Eric

Shredder - Leaning three-wheeled chopper: 36V, Lynch Motor, Differential dual-wheel drive, 33Ah SLA.
Currie USPD Montague Folding Mountain Bike: 4 x 33V DeWalt, Crystalyte 35A, BMC 750W motor.
Kawasaki Sumo 4.0 Fat Bike: Bafang Mid Drive 48V 750W
Coming Soon (for my son) - Sondors Storm

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ebinary   100 W

100 W
Posts: 145
Joined: Dec 12 2007 11:15am

Re: Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by ebinary » Aug 04 2015 11:27pm

dumbass wrote:I have the same setup on my Dole but I use a 34t ring with a top speed of 25mph. Of course the bike has been lightened from the stock model. But like you I am also 210#s. I have my bottom tube pack on order and currently using lifepo4 packs mounted to a very nice alm. fat bike rack. I hope to reduce the overall weight by another 25# by changing the pack.

Enjoy your ride I sure am, Bob
Hey Bob,

Apparently I can save a ton of weight just redoing the wheels (over 15 pounds each!), but at the end of the day, I think I'd rather have it built more like a motorcycle than like a bicycle. At 48V, I don't notice the weight.
Eric

Shredder - Leaning three-wheeled chopper: 36V, Lynch Motor, Differential dual-wheel drive, 33Ah SLA.
Currie USPD Montague Folding Mountain Bike: 4 x 33V DeWalt, Crystalyte 35A, BMC 750W motor.
Kawasaki Sumo 4.0 Fat Bike: Bafang Mid Drive 48V 750W
Coming Soon (for my son) - Sondors Storm

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beast775   100 kW

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Joined: Jul 05 2007 11:55am
Location: victoria british columbia

Re: Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by beast775 » Aug 05 2015 3:37pm

Clean build,looks stock oem kawa.. :)
2 FINGER SALUTE TO ESSO.no buying gasoline for 14 years now.
I spent all my money on bicycles women and beer the rest i just wasted.

dumbass   100 kW

100 kW
Posts: 1276
Joined: Apr 25 2008 10:42am
Location: Chicago Western Sub.

Re: Kawasaki Sumo Fat Build - Bafang 48V Mid

Post by dumbass » Aug 11 2015 6:01pm

ebinary wrote:
dumbass wrote:I have the same setup on my Dole but I use a 34t ring with a top speed of 25mph. Of course the bike has been lightened from the stock model. But like you I am also 210#s. I have my bottom tube pack on order and currently using lifepo4 packs mounted to a very nice alm. fat bike rack. I hope to reduce the overall weight by another 25# by changing the pack.

Enjoy your ride I sure am, Bob
Hey Bob,

Apparently I can save a ton of weight just redoing the wheels (over 15 pounds each!), but at the end of the day, I think I'd rather have it built more like a motorcycle than like a bicycle. At 48V, I don't notice the weight.
Hi ebinary,

Yes I agree the 48v with a good 25a controller is quite nice. But in my case I lift my bikes on/off my car rack several times a week. And if my wife rides with me then I'm lifting hers as well. And at 68 it's starting the wear on me. And I gotta think less weight = more speed.

Bob

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