Recent content by Johnny

  1. J

    ST5 vs Riese & Muller mid drive for hills

    I always tried to keep an open mind. Though I already had bosch and yamaha mid drives I still went to try out ST3/ST5 one day and here I am. So be careful. In terms of exercise it is all about how much you put in. On my exercise rides I keep it on level 1 (the lowest setting) and can still...
  2. J

    2K Miles on my Vado SL 5.0!

    Bike from the future! Makes 2k miles 3 months before the purchase. Yes it has to be a DeLorean... Beautiful bike, enjoy.
  3. J

    ST5 owners - Can you maintain 28mph for whole battery?

    I will try this when I can but I am almost positive that I can use S mode well below %40. Are you sure it was not because of thermal limit, it is conservative and S mode dials back to 3 when it hits the limit.
  4. J

    Heavy rider, very steep hills, not too expensive! Help please

    Linklemming's formula is correct. You are taking the ratio in the wrong direction. In my post I have derived the formula in case you are interested. Your driver is your chainring and the cog on the wheel is driven.
  5. J

    ST5 vs Riese & Muller mid drive for hills

    Once again @AbeK summed it up perfectly there is really nothing to add to that. I also agree that FS mid drives like yours and Abek's are fantastic tourers. The problem with 30+mph is it is above 28mph so no legal bike will give full support at that point. Above 28mph ST5 has a milder...
  6. J

    Heavy rider, very steep hills, not too expensive! Help please

    We can easily derive the needed equations, I hope this clears things up. If Power was perfectly preserved(assuming no drivetrain losses), (Torque at the crank) x (rotational speed of the chainring) = (Torque at the wheel) x (rotational speed of the wheel). => (Torque at the crank) x...
  7. J

    Why are Bosch motors only 250 watts?

    You know, I stopped responding to some posts because I realized that the communication was too similar to what you would have with an online banking "chat bot". At some point in the conversation, you reach a point that contradicts or outside of the set of pre-implemented responses/conclusions...
  8. J

    Frey CC

    Definitely get a good stand, it is hard to do the adjustment without a stand. As has been suggested you have to loosen (turn counterclockwise) the the low limit screw. It is a similar problem. At this point you may do the adjustment from the beginning. You can follow this guide, it does a good job.
  9. J

    Why are Bosch motors only 250 watts?

    Good information. These regulations explain the difference in sales numbers between regular ebikes and speed pedelecs. When I checked the numbers of ebike sales speed pedelec sales are in thousands yet regular ebike sales are in millions. It is really simple, when a company already selling in...
  10. J

    Why are Bosch motors only 250 watts?

    Unfortunately most of the time this is true. For these people 249W is underpowered 251W is a moped because bosch advertises 250w nominal. If tomorrow bosch comes with a 700W nominal motor you will see the same obsessive fans singing a different song. Not all of the owners are like these people...
  11. J

    ST5 vs Riese & Muller mid drive for hills

    Until @AbeK replies let me share my experience with my ST5. I can take it very close to 31mph on the speedo however after that you kinda hit the wall. Also your RM over-read your speed so when you see 28mph it is most likely in the 26-27mph range in the real world. If all you need is several...
  12. J

    ST5 vs Riese & Muller mid drive for hills

    Completely agree with all of these. On very hard braking rear wheel can slide. It happened to me too(a car coming on the opposite direction turned left on me), but each one of those I never lost control. That being said I think it can be prevented by getting used to the brakes and adjusting the...
  13. J

    Regenerative braking

    You shouldn't dismiss this feature. There are some big positives. Recouping is one, braking is another. Actually regen braking downhill is amazing. Instead of generating heat and wearing out brakes it recharges my battery. Mid drives can not do it. Geared hubs can be designed do have it, grin...
  14. J

    Brake Bleeding Stromer ST5/3

    So lately I had the need for bleeding brakes on my Stromer St5 which should also be similar for Stromer St3. The brakes are custom built by TRP. They are 4 piston brakes with great stopping power however since they are customized it may be a bit confusing to figure out how to bleed them...
  15. J

    Why are Bosch motors only 250 watts?

    Let me again re iterate, for emtb applications mainstream motors are great, they are built for that. In technical climbs it is not only about the amount of power, it is also how it is delivered. Also I agree that some of the Chinese motors have inflated specs. They do it because of lack of...