Search results

  1. Geebee

    Mid-Motor - highest assist level and no speed restriction - battery life

    At 20 mph you wheel is required to spin at ~240 rpm as opposed to the cranks doing 80 ish, so drag is multiplied. My BBS01 crank will spin about 3 revolutions with the chain off after sitting for a few weeks in a cold area, I just went and tried it, the drag is very minor in the real world to...
  2. Geebee

    Mid-Motor - highest assist level and no speed restriction - battery life

    If the battery is new or unused for an extended time it will take 3~5 charges to reach normal life, my Tonaro more than doubled range first to second charge! Turning a crank vs wheel is like comparing apples and oranges due to leverage, fly wheel effect etc. also the crank should free up with a...
  3. Geebee

    A 30mph crash fatality in something not tested or safe..

    The article does not come up for me but, if it was a head on collision would not the impact speed be a lot faster than the Gwizz speed alone ie 30 mph plus 30 mph = 60 mph collision?
  4. Geebee

    Fell off my shiny new ebike.. but why?

    Only tip I can give you is to buy a step through, when the bike gets knocked down it doesn't take your legs out from under you. I have had 2 off road low speed drops from loose gravel in ruts on steep inclines and both times I was left standing while the bike fell on the ground, pannier bags...
  5. Geebee

    BBS01 in the Alps

    Rob have you ever ridden a BBS01 equipt bike? Op your gearing with dual rings is ideal the lowest gear should allow almost effortless riding up hill even at 20% I have a BBS01 on a recumbent trike with gearing that works out very close to the gear inch a 34-32 on a 26" wheel will give, I can...
  6. Geebee

    URB-E

    Yep.
  7. Geebee

    Mechanical doping ???

    Professional Cyclist Gets Six-Year Ban For Using An Illegal Motor In Her Bike "This decision follows the discovery of a concealed electric motor in one of the rider’s bikes during checks at the Women Under 23 race of the UCI Cyclocross World Championships in January 2016. The bike concerned was...
  8. Geebee

    Mid crank drive motor - what type of gears are best?

    Not in my experience, I have a Tonaro with an 8 speed hub and after riding for an hour or so the tap brake to shift happens without thought, or even easier is to just pedal until the cadence is just starting to lose strong motor assist then shift like an unpowered bike, works great for...
  9. Geebee

    Failed on my first big hill

    My CD is not a torque sensor plus my gearing is what most would consider insanely low so high rpm are still available on very steep hills, the motor never gets hot even though its doing 99% of the work.
  10. Geebee

    Failed on my first big hill

    20% increase in range and probably motor life as it never gets hot is worth a gear change as you would on a normal bike IMO. Not always an option.
  11. Geebee

    Failed on my first big hill

    Only thing is with a CD you sacrifice efficiency, the trick is the moment the cadence/motor rpm drop shift down to keep it spinning fast, there is a measurable increase in efficiency by doing so.
  12. Geebee

    Failed on my first big hill

    If you have hills and can't provide human assist a CD with correct gearing is better than a hub, gearing is critical though. I unfortunately found my self in that exact position and have a hill that averages 12.5% grade with 20% ramps to get home after each ride plus plenty of similar ones...
  13. Geebee

    Failed on my first big hill

    Its actually worse than that if you are talking Bafang CD is 15.1 to 1 and a Bpm2 is 5 to 1 assuming the data I found was correct.
  14. Geebee

    Failed on my first big hill

    This is where the CD excels, I just got back from a short 13km ride, bit over 300m climbing including a hill that an Ezee cannot climb unassisted where as my BBS01 did it effortlessly albeit at low speed, in low gear. I would love to see efficiency of and unassisted CD against an unassisted Hub...
  15. Geebee

    Failed on my first big hill

    Nope, an Ezee hub should stomp up the op's hill with moderate assist and I assume other larger Hubs would do similar. A smaller hub would do it with more rider input, this was a style of bike I used to like, you get a moderate work out and your fitness improves. If you could provide no assist...
  16. Geebee

    Failed on my first big hill

    Unless you are using a CD correctly geared for climbing, the OP's hill would barely warm my trikes BBS01 up in low gear with zero rider input, the Tonaro would also do it but the motor would be quite warm, it also has lowered gearing.
  17. Geebee

    Failed on my first big hill

    I didn't pick up the op's own bike was a TS. Nice news about the throttles, they are already no longer fitting them (or limiting to 6 kph) down here. OP maybe see if a throttle can be retro fitted in that case.
  18. Geebee

    Failed on my first big hill

    But a cadence sensor bike can deliver full power by turning the pedals with zero effort and a low rpm. And since a throttle is now illegal...
  19. Geebee

    Failed on my first big hill

    I find a throttle adds no benefit at all to hill climbing.
  20. Geebee

    Failed on my first big hill

    A big high torque hub Ezee etc. or a mid drive WITH the correct gearing. A cadence detecting mid drive (BBS01) will climb at low speed the hill you describe with no rider input if geared low enough. After looking up Strava (below) are you sure you had not just over done the ride and had nothing...