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  1. G

    testing battery capacity

    It's a general question with which most probably do not bother. Does anyone have any thoughts on gauging / testing battery capacity better than a general historical sense after use. The battery I have is from a reseller who has them rated 3Ah over any of the same type that fit in a specific...
  2. G

    TSM-A5 opinions & impressions

    After seeing posted here a conversion done with this motor with an integrated torque sensor, I thought of asking what other people are thinking about this choice for a build. Would the integrated sensor detract interest for some due to this part being less accessible for service / replacement...
  3. G

    tripwire on road levers

    Anyone successful installing tripwire ebrake sensors on drop bar levers? Any visual examples would be a boost!
  4. G

    2WD motor efficiency

    The goal of this build is a bike that is efficient on the hills but also has a decent top speed. I am currently working with a minimal Bafang SWXK front motor which is just barely enough assist to make it back home fully loaded. The next step is to add a trailer weight of roughly 50lbs and for...
  5. G

    cause of wobbles

    With a forum search on 'wobble,' there seemed to be little I saw relating to rear racks specifically. The bike I am riding has a rear-mounted battery, and it did not wobble before the conversion. I have noticed this problem before by simply loading a rear rack either unbalanced or over its...
  6. G

    maximum spoke angle?

    I am working on a spoke order for a Bafang SWXK hub motor in a 700c rim. Being one of the smallest motors, it seems like a good chance to go with 2x lacing with an angle less than 9deg (122mm flange diameter). The most used spokes in this case seem to be 13/14g Sapim Strong. This angle is...
  7. G

    torque sensor conversion kit alternatives

    I am posting here in general regarding a hub motor conversion kit project employing a toque sensor drive. Until recently I have planned on the tried-and-true route of a CA3 interface, however with the premium involved, I have reluctance dealing with the clunky computer form factor. This is also...
  8. G

    balancing after spot welding

    My first plunge into battery construction prior to taking on a project building an ebike pack. Recently I replaced the 18650 cells in four dewalt 20v li-ion packs. Trouble is I forgot to balance the cells before connecting them in series and realized this when the voltage indicator on one of the...
  9. G

    48V charger for 52V battery

    Has anyone gotten into having a designated under-powered charger for a corresponding battery? For example, instead of a more sophisticated charger, having a 48V charger with a 52V battery as a matter of course. The way I look at it rather than opt to charge a battery to 100% occasionally, it...
  10. G

    spot welder mod

    An interesting video [https://www.youtube.com/watch?v=J2noz_7PGsA] showing a handheld spot welder upgrade and the process leading to the end result. For me it begs the question of whether this can be done using a basic machine without handheld ports such as Sunkko 737...
  11. G

    benefits of a programmable controller

    Still in the throes of research leading to my first ebike build, and thinking I've got most details sorted except still a bit unclear on the controller. I would like a bike that can be minimal in the area of componentry that would either need to be removed or secured for urban street parking...
  12. G

    torque sensing kits

    Are there any hub motor kits available with true torque sensing (not PAS) from anyone except Grin?
  13. G

    pedelec conversion with torque sensor

    With a 'ready to ride' ebike conversion from Grin, what is the best setup for a pedelec with a focus on being discrete and easily secured? Essentially I am using a classic road/touring commuter bike with a 250-300w bafang hub motor for modest assist to comfortably haul a 60lb trailer. Plan is to...
  14. G

    downsides to a higher voltage

    I would like to know if there are any downsides to having a higher voltage battery pack for run a relatively small motor (Bafang MG310). Would the higher voltage and thereby lower current help maintain cooler temperatures considering a CA would maintain the same wattage irregardless of voltage...
  15. G

    electric road bike conversion

    My goal is a road bike electric conversion and after saturation by readings, I figure upon a post asking for advice on this build. From what I can find, there do not seem to be many examples of classic road bike electric conversions and would be interested in any (juicy) threads or (clear)...
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