New blog dedicated to BBS02 and fatbikes / 100mm BBS02 kit

gridlok

gridlok

10 W
Joined
Oct 18, 2014
Messages
92
I've been really inspired by www.electricbike.com (and endless-sphere) so I've condensed much of the knowledge I've acquired from countless hours spent reading posts here and countless dollars blown on my unending quest to build the ultimate electric fatbike.

The first post is about my experience with Doug's 100mm conversion kit here

https://electricfatbike.wordpress.com/2015/01/13/bbs02-fat-bike-conversion-kit/

There is also instructions to assist with BBS02 installations here

https://electricfatbike.wordpress.com/bbs02-installation/

Different ways to mount the BBS02 onto different bikes here

https://electricfatbike.wordpress.com/bbs02-fatbikes/

Chainring selection

https://electricfatbike.wordpress.com/bbs02-chainrings/

Hotrodding the mosfets in your controller

https://electricfatbike.wordpress.com/bbs02-controller-mods/

And dealing with the crappy ebrakes

https://electricfatbike.wordpress.com/bbs02-ebrakes/

I hope people find the information useful. There will be many more articles in the future.

Karl
 
If you'd be willing to post any instructive articles (including those if applicable) to the ES Wiki, it would be appreciated.
 
gridlok said:
I've been really inspired by http://www.electricbike.com (and endless-sphere) so I've condensed much of the knowledge I've acquired from countless hours spent reading posts here and countless dollars blown on my unending quest to build the ultimate electric fatbike.

Karl
Click to expand...

Nice! I wished I'd seen this before I spend a lot of time trying to find information elsewhere.
 
Very nice indeed, thanks Karl!

Simonism
 
The guy mentions replacing the stock tubes, for lighter weight tubes, to save weight...but then he says when you do that, he carries the stock tubes with him , just in case of flats. Thats not losing weight ..thats gaining weight.
 
ebikedelight said:
The guy mentions replacing the stock tubes, for lighter weight tubes, to save weight...but then he says when you do that, he carries the stock tubes with him , just in case of flats. Thats not losing weight ..thats gaining weight.
Click to expand...
While accelerating, a gram less of rotating inner tube is like 2 grams less of non-rotating inner tube. Weight reduction from tubes also helps with bunny-hopping.
If you figure he's going to need spares anyway, he's being smart about where the weight is distributed.

Here's a link about the energies of biking:
http://pardo.net/bike/pic/fail-027/index.html
 
Two new articles from my twisted mind

How to ride E-fatbikes on singletrack

https://electricfatbike.wordpress.com/riding-fatbikes-in-the-snow/

How to lose a couple pounds for $20 and 15 minutes of work (sounds like spam but it's not)

https://electricfatbike.wordpress.com/2015/01/22/want-to-lost-some-unwanted-fat-look-to-the-tubes/

Ride on.

Karl
 
Need help choosing which display to buy with a BBS02 here is a run down on the C961, C963 and C965 along with manual links.

https://electricfatbike.wordpress.com/bbs02-displays/

Karl
 
I was about to pull the trigger on the BBS02... then realized that you are left with a 44, 46, 48 and 52 teeth chainwheels... I cannot imagine myself pedaling up a steep trail when it takes all my pocket change on the 22T if I have no more battery LOL
 
saucisse said:
I was about to pull the trigger on the BBS02... then realized that you are left with a 44, 46, 48 and 52 teeth chainwheels... I cannot imagine myself pedaling up a steep trail when it takes all my pocket change on the 22T if I have no more battery LOL
Click to expand...

There is also a 42 tooth from http://www.alcedoitalia.it/shop/accessori-bbs/corona-42-denti-per-bafang-centrale-bbs01/

After that, you can go with adapters for whatever chainring you want.
 
New article on the Biktrix Juggernaut, The most sucessful BBS02/Fatbike Kickstarter in the history of the universe...

https://electricfatbike.wordpress.com/2015/01/26/the-most-sucessful-fatbikebbs02-kickstarter-in-the-history-of-the-universe/

Awesome stuff.

Karl
 
Finished the dealer training for the Bosch mid drive system today and felt compelled to write this piece

Most talks about motor selection between geared/direct drive/middrive for a fatbike, but ended up with a lot of venting about the Bosch system as well.

https://electricfatbike.wordpress.com/direct-drive-geared-hub-or-mid-drive/

More than a little disheartened at the direction that Bosch has chosen to move in.

Karl
 
Possible Bafang chainring gearing option? Equivalent of a 28T/40T/50T chainring and it doesn't seem to be BB width dependent.

http://endless-sphere.com/forums/viewtopic.php?f=3&t=66427
 
New article on techniques for building a Super Stealthly Electric Fatbike

https://electricfatbike.wordpress.com/2015/01/28/how-to-build-a-stealth-electric-fatbike/

Ride On.

Karl
 
Another article on Dirt Cheap Walmart Donor Fatbikes

We recommend the Dolomite, but only for road-focused fatbike (not singletrack)

https://electricfatbike.wordpress.com/2015/01/29/walmart-dirt-cheap-donor-fatbikes/

Ride On.
 
Em3ev is now offering the Fat Mac motor in 10T and 12T versions. Article and pics here.

https://electricfatbike.wordpress.com/fatmac-from-em3ev/

Finally a good Geared Hub option for fatbikes!

Ride On!
 
Very interesting article about grinding down the DOLOMITE bottom bracket so it allows the stock BBS02 to fit in the cavity . Those mid drives can be bought for around $500 . That same company is making a modified BBS02 , for fatbikes, with longer crank to fit the stock 100 m.m bracket..but the prices is over $1000 .

I like the idea of saving 1/2 the money, and grinding down the bottom bracket . Please let us know when a article is posted on that procedure, and how successful it is.
 
Karl, nice article you made about my post :lol: :wink:

http://endless-sphere.com/forums/viewtopic.php?f=2&t=66501



gridlok said:
Em3ev is now offering the Fat Mac motor in 10T and 12T versions. Article and pics here.

https://electricfatbike.wordpress.com/fatmac-from-em3ev/

Finally a good Geared Hub option for fatbikes!

Ride On!
Click to expand...
 
I plan on updating that page as I get more info about the FatMac so check back in the next couple of days as well.

Perfect timing, I just put in an order for two 12T Mac motors and 2 BBS02's last night and then I find out that the FatMAC that I've been anxiously waiting for the last 3 months for has finally been released.

Total post theft, I can deny my bad behavior. I gave you credit.

Karl
 
gridlok said:
I plan on updating that page as I get more info about the FatMac so check back in the next couple of days as well.

Perfect timing, I just put in an order for two 12T Mac motors and 2 BBS02's last night and then I find out that the FatMAC that I've been anxiously waiting for the last 3 months for has finally been released.

Total post theft, I can deny my bad behavior.

Karl
Click to expand...

I sent you a PM....about modding the dolomite bottom bracket. Please keep me informed on that project. I sent you some ideas on the fastest most accurate way to shorten the dolomite bottom bracket. Once you have done this mod and installed the stock BBS02, you may want to get some really heavy duty steel hose clamps , large enough to fit around the bottom bracket , and tighten them down , if there is enough area left . At least one on each side . This may help strengthen the bottom bracket and keep it from becoming damaged due to the stress of the mid drive system and the shortening of the bracket itself . Ive had my bottom bracket apart to replace bearings in the dolomite, and the steel in that bottom bracket area, didnt look very thick .
 
Hahah it's ok for using my post, I've posted this on ES for people to know they have now one more option for their fat bike so using it in your article / site and spreading the news that is just great!
 
This could be a great ongoing thread , specifically about different but successful ways to mod fat bikes / dolomite to ebike.

I am currently in the process of modding my dolomite to electric . I ordered a rear 1000 watt direct drive hub motor but will take the cassette off and then mount
the hub on the front wheel of the dolomite since the fork distance is 135 mm . Im expecting to be able to make the dolomite a ebike for under $1000 .

Dolomite + mods - $300

ebike hub kit - $200

48 or 60 volt Lipo battery pack - 20 A/h--- $300- $400
 
Yes the Dolomite might be the perfect cheap donor bike. I'll be posting another build thread in the next week or two for our conversion.

Bikes direct bikes are very goos as well and much lighter. I just bought a deadeye monster single speed ($300 which is $100 off because it was banged up from shipping) that I weighed last night at 31 lbs! Brakes are crap but the drive train is steel and looks usable aluminum frame and the beefiest rear dropouts I've ever seen on an aluminum frame.

Karl
 
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