Recent content by Wattman

Important point is you get the hobby and many haven't a clue. I look forward to you sharing your builds on the forum if you care to. In particular there is a lot of buzz about the Photon motor. For me personally, I am more interested in what is anticipated which is a higher power big brother...

It's complicated but to simplify, you can extrapolate from world class mountain bikers. They aren't on fat bikes on trails because of: 1. weight 2. aerodynamics 3. they don't need the added footprint for traction. You won't be shredding off road faster than top mtb riders even with a motor. On...

I have a penchant for foo-foo bicycles as well but another side of me wants power to stay up with elite road cyclists. I am a speed guy who still pedals hard. So aesthetics is subordinate to speed for me and I would be saying 'on your left' to the brazed lug crowd on their vintage retro works...

You are quite knowledgeable and a lovely writer. Thanks for sharing your journey each of us are on as we each try and make the best of each day. When you get in the fourth quarter of the game, things come more into focus. As I read about your health challenges, the thought that comes to mind is...

You bring up many great points A-to-B. Thank you. What you wrote makes a lot of sense. Its always those pesky details that stand in the way. 😉 Totally agree about your last paragraph and how I roll as well. Technical complexity all said has a reliability cost. Also greater risk when playing...

Nicely explained.

First, well done. Second, I don't see a major battery issue here. That is not a gross unbalance of cells in the least. A BMS cut out typically occurs when one or more parallel cell groups drop below '3.0 volts' even though aggregate battery voltage is much higher. That said, you show parallel...

Timing couldn't be better for seniors to have ebikes hitting the streets as we try to manage our loss in physical strength. I am riding my ebikes a lot more now than acoustic bikes but also come from a motorcycle background and appreciate motor propulsion. Do you have your Photon build out on...

Well, depends on what chainring. Bicycle gearing of course is the third reduction including wheel/tire diameter. As mentioned a BBSHD bike with stock controller and not field weakened controller and 30 amps will turn about 3700 RPM. Bafang did a heck of job with the sweetspot of their gear...

Sharing some personal experiences as I have had good luck with riv nuts on modern aluminum bicycle frames with heavy battery ebike applications. For a big, heavy battery like a shark type 20 amp-hr size, I suggest four points of attachment to a frame. I personally use a Grin Triple Bob which...

Agree ncmired. I run both their chainrings and crank arms and their stuff is pricey but worth it in my opinion. I like short cranks on ebikes.

A good question and more than a few go there and even build batteries from old laptops. Yes the things you mentioned but to me, the biggest problem is, lower quality cells means capacity difference among cells which translates to a battery going out of balance faster, in particular if you don't...

Eastwood, I love motorcycles in general as in gas powered and haven't made the foray into a high power electric motorcycle like you are doing. What a great project. Question please... Have you ordered the Molice 21700 P42A 4200mah cells yet from 18650 batterystore.com? Did you have a good buying...

Respect Eastwood. Hope you share the battery build with us and the result on the bike. Cool project.👍

Don't know for sure but believe its higher than the BBSHD because P = Torque X RPM and that is the way for this little motor to create power. But here is the problem with this design language. Higher RPM or gear reduction that requires higher RPM at the cranks 'renders the rider more useless' at...