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  1. Ravi Kempaiah

    Step thru looking good!

    As of now, it is programmed to be 20 mph, but if you're mainly riding off-road, we can offer something suitable for you. Regarding your question, we found that tuning a mid-drive torque sensor is far easier than tuning a hub-drive torque sensor. This is one of the reasons, many hub-drives...
  2. Ravi Kempaiah

    Zen Electric Bikes - Demo Bike Clearance 2023

    Demo Bike #2 will be posted on August 14th, 2023.
  3. Ravi Kempaiah

    Show us pictures of where you ride your ebikes!

    Love to see more bikes and scenary pics and less Strava pics on the forums. This thread could use a banner like this...
  4. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Some local Canadian customers having a great time on the new Photon E-bike on their maiden trip across the Atlantic Canadian coast. If you have not been to Atlantic Canada, you should check out the Cabot Trail. It is one of the most beautiful places in east coast for bike touring.
  5. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Bafang's implementation is not entirely done yet. I don't think it is foolproof yet.
  6. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    @etchlings , @srl1_sd , We will install the Enviolo Automatiq on the Photon by the end of this month. A couple of comments: We have tuned the motor such that its torque sensor is smooth and the initial engagement is relatively quick. Because the motor has much more power than Bosch, we wanted to...
  7. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Some local customers here in Canada, who had pre-ordered it, received the bike last week. This gentleman had a few other brands, finally tired of dealing with chain/derailleur maitnenace on his bikes (Canada has a lot of road salt during the winter months), he was thrilled to be able to ride a...
  8. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    The initial feedback from customers about this bike has been very positive. An early pre-order customer testimony: "Hi Ravi, Today we picked-up the PHOTON E-bikes from the shop. They look amazing, we really like them and are so much looking forward for having the first tour. Thank you so much...
  9. Ravi Kempaiah

    Step-Thru

    Zen Photon that we built for one of EBR's contributors - @Deacon Blues . Tektro E-725, 4-piston brake upgrade (front and rear) 203mm rotors (front and rear) Suspension seatpost upgrade
  10. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    If you have any suggestions for any store, we could contact them and bring some bikes for them and you to test ride.
  11. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Some of our earliest pre-orders are being shipped next week. @msdisme , the riding position quite upright and you could make it a hybrid style because of the stem adjustability. The front rack holds 15kgs. The motor is a custom version made for us and the parts are readily available. The...
  12. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Thanks, @Jeremy McCreary Happy to coordinate with any shop of your choice. We were focused on building the best bike possible, so we are a bit behind on signing up new dealers, but more than happy to coordinate with a shop if you could suggest. Our goal is to ensure serviceability and support...
  13. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Partially assembled Photons are on the way. They will arrive in Canada and the final assembly, QC/QA and battery installation would happen here.
  14. Ravi Kempaiah

    Comparison in definitions: Tested To, Complied To, Certified To, UL Certified

    It would be great to have a list of E-bike companies whose batteries are UL-certified by UL, not SGS or Intertek.
  15. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    We have dealers on the east coast but don't have a presence in California. If you know of any shops or dealers that might be interested, please drop us a line; we would be happy to work with them. The bike weighs ~ 27kgs without the battery. The battery is about 5kgs. Most of the weight is...
  16. Ravi Kempaiah

    Dual Battery Balancer circuit - experiences!

    We will have to engineer a solution like that, and it can be done, but it would cost $500K to get this into production. Bosch has done an excellent job!
  17. Ravi Kempaiah

    Dual Battery Balancer circuit - experiences!

    Public Safety Announcement (PSA): The dual battery function is a favorite among many riders, and being able to connect 2 batteries and extend the range is an excellent feature. This is one of my favorites too. Bosch has implemented this in an excellent manner, and it works very well. But, I...
  18. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    Sure, we can make that happen if you are interested. We would test it first and make sure it works very well. I know some other brands have had issues with the Automatiq shifter. Have you tested one and liked it?
  19. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    We actually have UL-2849 and UL-2271 documents, and I will share the details shortly. From what I remember: Batteries must be able to withstand over-charging, over-discharging, short circuit, imbalanced charging, and operation at a maximum specified temperature. The enclosure must be resistant...
  20. Ravi Kempaiah

    Zen Photon - [1000Wh] battery, [500W/120Nm] Torque-sensing motor w/ Throttle, USD 3799 [Pictures and Specifications]

    We had a lot of requests for a bike with a belt-drive and Internal gear hub combo (low maintenance), a long-range battery, and a torque-sensing motor with throttle. So, we created one - Zen Photon. As we set up a battery manufacturing facility in Canada, it will help us offer higher-quality...
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