A new tool to help extract those hard to get to 8mm bearings which support the ends of the motor rotor on the BBS01/02 and BBSHD. This tool will be on the website shortly. For anyone who has tried to replace these bearings will know they are next to impossible without the proper tool since they are both in a blind hole recess. Watch for this tool in the “Tools” section of the website.
Gates Carbon Drive has publish a new manual of specs for use with the Bafang Max drive motor.For purpose built bikes.
Photo credit: Electric Bike Report
Thanks to James Dennis of Indianapolis for keeping us updated. A note to readers: this section relating to the Bafang product has since been removed from the original copy indicating there may be some unresolved issue with this information. We decided to go ahead and publish so the reader can at least glean useful information from it. click here to download GatesBafang Specs
Every once in a while we get to build out what I consider to be a Dream Bike. In this case,Frank McGrath from Berkely, CA brought us his Cannondale “Lefty” to set up for all around riding and extreme grade climbing. Here is a list of the components we installed on Frank’s bike:
Frank has some hills to climb on the mountainous side of Berkeley that are more than 20% grades and with the 11×48 cassette on this bike they truly are a piece of cake. Frank loves to ride with his wife and stay in great shape. He even has a heart rate monitor on his bike and has to be careful to not over do the pedal assist so he can keep his heart rate up.
There was a lesson learned though from this build. Frank was getting an annoying noise in the higher gears of his bike, especially when climbing. After testing, we discovered that the cassette body on his rear wheel was made of aluminum and that it could not take the torque stress of the mid drive. We replaced the aluminum body with a steel body and all the noise has now gone away.
“Below is picture of the bike, it is a Spot Champa frame, which is made for a belt drive. The key to using a belt is to use a 3-speed IGH which is made to accept a cassette. I use the Sturmey Archer CS-RK3, SRAM makes a similar dual drive which I have seen used for the same purpose. I used your spider and spacers along with a 55 tooth front and 22 tooth CDX belt cogs. With the current set at 17, as a pedalec, I can easily travel at 30+ miles an hour on a flat, climb fairly steep hills at 20+ mph and still get plenty of range. I have about 50% battery left after my 40 mile daily commute with some decent hills involved. Motor only, the gearing is pretty high, but it will hold a speed once you put some pedaling in. The pedal clutch failed and I was able to motor home, but I had to push the bike up the steepest part on my commute, which is short. For me its perfect, I like to pedal. I use the 5 PAS levels as gears along with the 3-speed internal, giving it basically 15 speeds, I don’t know why you’d want any more gears.”
Since 2016 I have had the pleasure of working with Pierre in setting up his tandem bike with the Bafang BBSHD 1000 for touring with his wife. As many folks adventure into the wilds of serious touring, Pierre is very meticulous and focused on setting up his equipment to endure the strains of the terrain. He has shared with us some commentary and photos of his adventures, perhaps to inspire others to check out what lies beyond their local scene. He and his wife shared the thrills they have had and give us a glance at their future dreams. Here’s the bike that Pierre started with along with some of his commentary:
According to Rolhoff: The maximum rear sprocket input torque must not exceed 100N and this is something that the motor vendor may not be able to provide as it depends on the primary transmission ratio you’ll be using and of course you would also generate torque yourself.
Current setup is:
14speed Rolhoff Rear Hub
36 inches rear wheel;
20’’ front Wheel with SPINNER Aluminum Suspended fork.
Dynamo front hub;
Rear sprockets 17-19-21T and spline carrier.
Guide Hydraulic brakes
I finally succeeded to install my Bafang BBSHD on our Pino semi-recumbent Tandem. I found out I needed a 100mm axel to fit with the double crank of the Captain bottom bracket. I inserted 3 x 12mm spacers on the left side of the axel to fit with the left side front chain ring. Ouf…it was creative as you mentioned on your previous email!
As planned, we went for the SuntripTour 2017 in France last June with our Pino Tandem and Solar trailer. Unfortunately, the third day, we slipped on wet ‘’pavements tiles’’ and my wife double-fractured her pelvis.
I recently got acquainted with Anne & Mike Poe of Hiking Biking Adventures as they are in the process of moving to Slovenia. Anne needed a couple of batteries sent ahead to be ready when she and Mike arrive in June. If you check out their HBA website you will find they are real pro’s in the endeavor of writing and describing their adventures. Their guidebooks give you wonderful detail and descriptions of their own experiences so you may discover the same wonderful trails armed with very helpful insights.
As the Ebike rider base continues to expand there are more and more people discovering the enjoyment of riding an Ebike. Not only the avid bike riders but many others want to get more exercise and rediscover the great outdoors. They are finding the adventures that Anne & Mike describe in their guidebooks once again doable. Having this information readily available for the new explorers is very exciting and much needed.
Thank you Anne & Mike, we will continue to follow you with your new discoveries!
The Juin Hydraulic brake system is the simplest solution for adding hydraulic brakes to any bike that can accommodate disc brakes. There are no hydraulic lines to fuss with and best of all, you use the standard Bafang cable brake levers with the electric cutoff.
Also, for those who want to continue to use, there are many that have high end or Parking Brake levers. This system would allow for that by adding in the Hidden Wire Brake Sensors.
Maybe some good news to Ebike owners wanting to use the Gates belt drives on there Ebikes with IGH.
Note from Christopher:
As of March 2018, Gates now offers a CDX belt ring and cog which are Di2 specific. There is a particular offset which I believe may accommodate an Alfine 11 IGH with the BBs02. I have the cog and ring on order and should have them in hand by the end of the month. I’ll report back with findings!
We will post the results of Christopher’s install as soon as he gets back to us. We appreciate this kind of support.
Finally, a component to relocate the mounting holes for your Downtube battery without drill extra holes.
B-RAD, which stands for Bottle Relocation and Accessory Device, is a system for organizing downtube battery mounting using bottle cage mounts. Available in two sizes, B-RAD bases can shift a bottle cage away from rear shocks, add room for tools or tubes below a bottle cage, or even provide space for a second bottle on downtubes.
Finally got the California Ebike Pedicab ready for the 2018 Season and took my wife Joyce for a test ride. The hills here in Benicia California are very steep and long (some 10-12%). So we switched out the 46T stock chainring for a Lekkie 36T (HD). added a BSB-1 Stabilizer bar, 48V-40Ah battery pack, and of course added programmable LED light strings to the overhead canopy for a little extra “Bling”. We’ll be offering FREE rides at the local Farmers Market as well as Free rides and the Solano Mini Maker Faire which will be held at the Solano County Fair this year (June 30 & July 1). Perhaps we’ll even be at the Oakland Bike Fest this year. Pedicabs are such a joy to operate when the are properly set up with Bafang HD
electric assist and have the right components to navigate those steep hills fully loaded.