Category Archives: Bafang BBSHD

Pulling Friends On A Shovel With My BBSHD eBike

My buddies came over to watch Conor McGregor beat Mayweather last night and we were up late wondering how he lost. Our brains started to hurt from the intense debate so we decided to go into the garage to see if there was anything more constructive to do.

My friends found an ebike, a tie down and a snow shovel and the rest is history. My neighbors are thankful they did not choose my KTM 450exc for this stunt and so is my snow shovel.


BBSHD Crank Arm Failure?

I was just riding along, through a field, at 25+ mph and G’d out good on a dip in the field. The crank threads did not deal with that well! 😀

These are the crank arms that come with the bbshd kit from Luna Cycle and I assume most bbshd ebike kits.

Maybe I did not have pedals tight enough? Not sure. When I backed out the pedal most of the crank arm threads came with it so the crank failed, not the pedal.

Anyway, watch out for this. Time for stronger crank arms. To bad because I like the flat profile of them. The crank sticks out enoug with the 100mm bb I have.

My bbshd is mounted on a hardtail DB Hook. May not have failed if I had a full suspension and lost 20lbs. I probably pushing 215 lbs with gear.

BBSHD Hill Climb vs. Pedal Only

My brother and I did some riding today and took video of climbing with bbshd pas, bbshd throttle only and pedal only.

I borrowed my brothers Specialized Fatboy for the pedal only test.

BBSHD Throttle Only


Pedal Only

Great Experiences With Luna Cycle

Luna Cycles Home Page

Luna Cycles Home Page

I wanted to let folks know I have had a great experience purchasing my bbshd from Luna Cycle. I bought my bbshd kit from the with my own money so this is not a biased post.

emtb parts at luna cycles

eMTB parts on Luna Cycles.

First off, comments like this honestly sold the bbshd for me…

Its predecessor the BBS02 would sometimes falter if run at peak power for too long of a time but those days are over with the BBSHD. Completely redesigned with thicker windings, giant heat dissipating fins and a powerful 12 FET controller. There is nothing else like it on the market.

Go ahead, beat on it, the BBSHD was designed to take all of your abuse and more.

That and the fact they have user reviews that seem to prove it.

The commerce site they have is not great but it does the job. Prices are very reasonable. The price of bike components are as good or better than prices you might find on Jenson USA. This is great. I expected them to be higher as most smaller bike companies will inflate prices. Luna could easily mark up prices and still sell due to convenience to someone buying an ebike kit but they don’t.

When I was getting the 15H error they helped me trouble shoot and were very quick to respond.

Luna looks to be run by some enthusiastic ebike advocates. They post test of their products on Facebookwere and tease new products. It is great to get a window into their culture and business.

Anyway, I recommend them for what it’s worth.

Bafang BBSHD On A Diamondback Hook | My First eBike Build

After a decade or more of interest I finally decided to build an ebike. I tend to over analyze things and enjoy the research process. Combine that with a major job change 5 years ago caused the delay. All poor excuses!

Anyway, here is a summary of how I got here…

My eBike Conversion Criteria

  1. Must be off-road / midwest singletrack capable
  2. Must have front suspension at a minimum. Rear would be great.
  3. Cost must be under $750. Otherwise I would just buy a Rockshox Bluto for my Fatboy and convert that.
  4. Disk brakes (cable or hydrolic)
  5. Modern geometry with relaxed head angle to deal with higher speeds
  6. Threaded bottom bracket compatible with bbshd motor

Choosing My ebike Platform

I have the following bikes in my garage right now that I could have chosen to convert:

2010 Trek Fuel EX8

2015 Specialized Fatboy

1998 Specialized Stumpjumper

2016 Specialized Diverge

Long story short, I like pedaling the Fuel and the fatboy so did not want to lose them for mtb rides with my buddies. The stumpjumper has rim brakes and no mounts for disk and I wanted the power and consistency of disk brakes. I wanted a bike to ride off road so the Diverge is out even though it is a “gravel bike”and by design can handle some abuse and light offroad riding.

I decided to buy a new, inexpensive bike for the build. I found a Diamondback Hook at performance bike for $500. It looks awesome, has a sturdy and probably over engineered frame and low end components. Perfect for the build because I figured I was bound to screw something up and trash  the bike. Turns out I did not damage the bike. Well, the ISCG mounts on the bottom bracket had to be ground off to fit the bbshd. Pics are below. Warranty voided! 😀 It has mechanical disk brakes that can be used with stock brake levers provided by Luna Cycle and other bbshd conversions. With the long length of the stock levers there is more than enough braking power with the Tektro mechanical disk brakes. Add to that, cables are very low maintenance and simple compared to hydraulic.

My build kit is a Luna Cycle 100mm bbshd. 52 Volt dolphin pack. Specs are below…

Item # Description Qty
Bafang BBSHD Mid Drive Ebike Kit 1
BBSHD-CR-46T BBSHD 46T Stock Steel Chainring 1
BBSXX-DISP-LUNA750C Luna 750c Full Color Display for BBDHD and BBS02 1
BBSXX-THMB-U Bafang BBSHD and BBSO2 Universal Thumb Throttle 1
CHRGR-52-3A-XT60 52v 3amp Luna Mini Charger 1

Bottom line is is love the bbshd on the DB Hook! I have a Leccy 36 tooth chainring on  it. When in the lowest rear cog (largest ring) in  back the bike climbs and wheels on demand. In high gear I can do about 30 mph on flat. Maybe more.

Check the pics below. I’ll post up more information soon.


db hook before conversion to ebike.


Me with ebike grin after first ride. It was pouring rain. Almost crashed!

Had to grind off ISCG chain guide mounts to fit bbshd.

100 mm bbshd needed many spacers. Should have bought 73mm.

bbshd plugs for speedo, brake cut offs, and speed sensor.

Color display for bbshd.