What Does BBSHD Error 15H Mean?

I was just riding along when “Error 15H” showed up on my color Luna bbshd dashboard. A “check engine light” was next to it. When I see this in my car I usually ignore it. 😉 So I cautiously did the same on my bbshd conversion! After all I was not gonna pedal the 60 lb beast home. Of course I’m man enough but I digress.

What does 15H Error mean???

Bottom line is the speed sensor was not connected all the way. 

Luna and the electricbike forum were very helpful in resolving. Luna offered a new sensor if the issue persists. I am liking Luna a lot so far.

2 eMTB Lessons Learned| Ride 10 | bbshd DB hook

Above is why I always ride cheap derailleurs. And why I am buying a second speed sensor.

A week ago while gaming with my buddies I told them I can’t figure out exactly what this bike is good at. Yes, it’s fast. Yes, it climbs hills faster than I can with leg power and with little physical exertion. But it was hard for me to say the overall enjoyment level beat regular pedal mtbs. Also I preferred pedal assist much more.
Well on ride 10 that changed. Here’s how…

1) I adjusted the thumb throttle so that wide open was in a natural position for my thumb

Before this ride I realized that when the throttle was wide open my thumb was just below the level of the bar which was very unnatural. When installing I did not think much about ergonomics and how to position the throttle. It matters.

This pic off “Full Throttle” shows how not to set it up…

This pic shows where your thumb should be at “Full Throttle”…

2) Ride it like a “2 stroke”

…well I guess how I used to ride two strokes 😀 which isn’t well LOL. What I mean by that is the power is crazy high on a rigid rear triangle, bbshd mtb that is geared 36:32. 36 Leccy front sprocket to 32 tooth rear. Just like power to weight ratio on a 2 stroke dirt bike. Yes, I know 2 strokes have a non-linear power delivery and power band and and electric has flat power curve. But honestly the bbshd power delivery is a bit unpredictable with stock programming from Luna Cycle (and maybe all bbshd?). When you “roll on” the throttle there is a delay in power delivery. Kind of like the unpredictable power of a 2 stroke dirtbike. How do you adjust for that? …point and shoot with full throttle!!!

Just after the apex of a turn look where you want to go and go full throttle and be ready for it. Get off the seat. Elbows out. Weigh the pedals right. Good riding position. No riding like it’s a couch which is how I tend to mountain bike in the Midwest on flat terrain. Let the bike do its thing underneath you. Let it buck and wheelie and loose traction. Be ready to tap the brake as needed to get things under control.

I had so much fun riding it aggressively. And yes I plan on crashing soon riding it like this but I’m ok with that.

I’m sure there are ways to change programming to get a more predictable power delivery which I’ll look into but for now it’s grip and rip 😉

All that said this is not a dirtbike. It does not deliver dirt shoveling power. It’s not a two stroke at all. But it is also not a mountain bike anymore. Or is it? Man I still can’t wrap my mind around this thing and I think that is part of why I love it.

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.

Pedego Destroyer Electric Fat Bike

Now this is a cool idea. Take a fat bike and electrify it to remove one of the few gripes folks might have about it.

The beauty of fat bikes is their simplicity and huge contact patch of their extra-large tires. The added weight of the tires and additional rolling resistance of the contact patch make the bikes feel slower than a regular mountain bike.

In theory, putting an electric motor in the rear wheel would make an all-terrain monster out of a fat bike. Pedego decided to do exactly that with their latest ebike, The Destroyer. Check the press release below for more info. I want to ride one! Wish I was at Interbike.

Read more »

Ronnie Renner’s Take On The Stealth Bomber

Nice to see Ronnie Renner riding a Stealth. Watch the video to get his take and see him riding the his Stealth Bomber around his neighborhood. This type of riding is what I usually do these days… around the neighborhood on local trails where I don’t want folks to hear me. I’m on my mountain bike or DRZ with a 92 Db insert keeping the RPMs low.

I am excited about electric mountain bikes and Stealth for all the same reasons Ronnie is.

Source: Stealth Electric Bikes FB

Stealth Expanding In Canada – Attending Toronto International Bike Show

Image: Stealth Electric Bikes USA Facebook

This is a quick post to be sure the folks in Toronto know that Stealth will be in attendance at the 2012 spring Toronto International Bike Show. If your in the area be sure to check them out.

They are looking for dealers for Canada so this may be a great opportunity if your interested.

Location: Booth #710
Direct Energy Centre
East Annex, Hall F, Door 33
Exhibition Place Toronto, Ontario,
Friday, March 2, 2012 – Noon to 9 P.M.
Saturday, March 3, 2012 – 10 A.M. to 7 P.M.
Sunday, March 4, 2012 – 10 A.M. to 6 P.M.

Press Release after the break…

Read more »

Hawk e-Freerider Prototype

Hawk e-Freerider

While browsing the webs I came across the Hawk e-Freerider. I don’t recall ever seeing it before but it was on display at Interbike 2010.

It appears to use an SR Suntour V-BOXX drive attached to it’s monocoque frame. The rear wheel is driven by a hub motor. The bike was built by SEMCON.

Hawk e-Freerider

Nicolai To Sell Ion e-Boxx Frames

Nicolai Ion-20 e-Boxx

Nicolai Ion-20 e-Boxx

Bike Radar is reporting that Nicolai‘s 2012 line-up will include e-Boxx frame packages based on the Nicolai Ion e-Boxx they had on display at Interbike 2011. No prices were announced.

From BikeRadar.com:

The Ion e-bike is the real head-turner though, with a Bosch electric motor to power you to the top of the hill and make uplift queues a thing of the past. The Ion20 E-Boxx has 180/203mm of front/rear travel courtesy of a RockShox Vivid 5.1 shock and a claimed frame weight of 14.3kg (31.5lb).

The shorter-travel (160/170mm) Ion16 E-Boxx comes with a Cane Creek Double Barrel shock and weighs slightly less, at 13.9kg (30.6lb). The motor can also be built into Nicolai’s Helius and Argon frames. UK pricing for the E-Boxx models is still to be confirmed.

via: Bike Radar

Stealth’s John Karabalis And Darin Brin Interview

American Outdoors posted a video interview with Sealth Electric Bikes founder John Karabalis and Stealth USA’s director, Darin Brin. This is the only in-person interview with either of these guys I have come across which made it interesting to watch. Also, some very interesting points were made…

1) Stealth Electric Bikes are neither mountain bikes or motorcycles in John and Darin’s eyes. Stealth two wheelers are “creating it’s own class of bike”.

2) When riding downhill, the added weight of the hub motor in the rear wheel gives increased traction and stability when compared to a downhill bicycle.

3) Stealth Electric Bikes are hand made and assembled in Australia under John Karabalis’s supervision. There are no plans to change this or switch to mass production methods.

More Stealth Hurricane Pictures

stealth hurricane ebike at interbike 2011

Stealth Hurricane - Image credit: LYEN

LYEN out on our favorite ebike forum, Endless-sphere posted up some great pics of the new Stealth Hurricane electric motorcycle. …guess it’s safe to call it that. You know, it has foot pegs after all.

Check out the ES thread for more pics of ebikes from Interbike 2011.

There are also some good Hanebrink and Ego-Kits pictures and test ride video to be viewed.