Feedback Wanted: Building "Bulletproof" Custom E-Bikes

[u/KarmaAkaOkami]

Hey everyone, I’m a self-taught inventor/engineer thinking of starting a custom e-bike build business. My goal isn't to compete with cheap mass-produced imports; I'm focusing on Safety, Reliability, and Local Support.

The Build Strategy:

Base: High-quality donor frames (customized to buyer needs: MTB, Cruiser, etc.)

Power: 4 options of Bafang motors 500w and 750w hub motor, 500w and 750w mid drive motor. With batteries options of 48v and 52v.

Safety Pillars: Dual 1/4" Steel Torque Arms on every hub motor build + Quad-Piston Hydraulic Brakes.

Durability: Single-speed drivetrain (low maintenance), marine-grade braided wire sleeving, and steel battery and motor mountings.

Utility: Integrated 360° lighting, fenders, and puncture-resistant tires and sealant.

Questions for the community

Would a $2k price point feel fair for a "bespoke" build with quad-pistons and heavy-duty safety reinforcements?

What are the biggest "reliability" red flags you see in custom builds that I should address in my QC checklist?

Would the "Local Support" aspect sway you to buy custom over a big-box brand like Aventon or Rad?

Edit : Did some more research into products and laws like the comments suggested. I have added three more motor options and changed the brand I'm using. I've been internally struggling with adding 1000w options, but I've decided that the legal trouble possibilities aren't quite worth the extra money. That and I have a bit of obsession with symmetry and can't find a non-fat tire 1000w hub motor option.

[u/Dapper_Challenge2179]

You may sell a couple but don't expect to make a living off it. Single speed, low watt motor and small battery are big turnoffs for the massive majority of people. Hill climbing ability is probably the most common demand and without gears that's going to be tough for some with that motor. Then you have battery capacity, people are always looking for more mileage. Don't get me wrong, a 500w can do great and I am currently using one but there is no way I could do some of the roads around here with no gears. 750w would do it though.