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  1. R

    Really good article comparing Bafang vs. Tongsheng vs. CYC

    Do you have a direct or geared hub drive. Sounds like 3000W is direct drive. I can do switchbacks even better on a geared hub drive than I can on a mid drive, throttle or PAS. On a direct drive, yes I can understand how that would be tougher. And yes a hub drive if setup properly is a good...
  2. R

    Really good article comparing Bafang vs. Tongsheng vs. CYC

    It all depends on what someone is doing. Most people here ride on pavement. Hub drives are perfectly fine for pavement. Most people on here are not trying to ride up 10% grade singletrack with difficult obstacles in their way. So they don't really 'need' a mid-drive. The article is really meant...
  3. R

    Best/Favorite KT Display?

    Best answer. The 3 and 8 both have watt readouts which is extremely helpful. Many of the other's don't read watts, which to me is ridiculous.
  4. R

    Do mid drives hurt your knees after a while?

    Sorry to hear about that. You do have options, unfortunately they are not DIY. There are some pretty cool brand name mid-drives out there for around $3500 starting. And good riders are making the most of them offroad. I just rode up a technical hill and got the best time ever personally, but my...
  5. R

    Do mid drives hurt your knees after a while?

    The 140 Nm is a pretty common top-end figure that 'could' be possible in some more extreme circumstances, like going about 3 mph up a very steep hill. If you play around with different variables, put on a smaller chainring and huge cassette in the back, and then put the bike in the lowest cog...
  6. R

    Torque arm on a suspension fork?

    The 'army of kids' are now riding cheap rear hub motors all over the place that their mommy and daddy bought for them. I rarely see any front hub motors, in fact I cannot remember ever seeing one besides my own. Maybe once or twice a long time ago. I think you guys are by definition looking at...
  7. R

    SW900 wiring, need help Please?

    Yes, a new controller that's 100% plug and play (and works) is worth every penny. Just make sure it's not a KT one.
  8. R

    Torque arm on a suspension fork?

    Maybe if the front hub motor is like 3000W then it may not work well. Something that's 250-1000W with two (not one) torque arms is going to be perfectly fine. I have no idea who made up the story that a mountain bike suspension fork, that is designed to take a ton of abuse for thousands and...
  9. R

    Do mid drives hurt your knees after a while?

    If you don't mind me linking a different site about this topic: Bicycle Q Factor Definition - Ebike Mid-Drive Motor Q Factor List Yamaha PW-X Q Factor Length: 168 mm Shimano E8000 Q Factor Length: 175 mm Brose Drive T, TF, S Q Factor Length: 179 mm Bosch Performance Line Q Factor Length: 180...
  10. R

    Do mid drives hurt your knees after a while?

    The question is: does the torque sensor couple to a geared or direct drive hub motor. Geared hub motors can climb steep hills, assuming downhill (in this case uphill) tires and low enough gearing for the rider to help out.
  11. R

    using 100mm rockshock with enduro frame

    The front end is going to be about 2 inches shorter than the back. It's not too much different than putting a smaller diameter tire on the front. The front end was designed for a fork with 150-170mm travel, so that's 2-3 inches of difference. You bought a new 26" fork? Hmmm. One thing, and...
  12. R

    E-bikes are arguably worse than electric cars

    I would have a hard time buying Tesla simply because Elon Musk is a complete jerk.
  13. R

    BBS02 vs BBSHD - how much can you alter programming also

    One of the problems is that neither starting DC output or final gear reduced rpm show on most display screens. So you have to guess either by gear or by if you can hear the sound of the motor. I think this overheating thing is a bit overblown for most mid-drive motors unless someone is trying to...
  14. R

    Planning ultralight, stealthy, silent build, questions..

    I'm certainly not an expert on electric motors. Can only go by my so far maybe 6000 mile experience w/electrified mountain bikes. If the q100c is 350W then peak is probably around 700-750 watts. On pavement that's OK. 14:1 gear reduction is really cool for a hub motor. Let me put it through the...
  15. R

    Anyone Else Annoyed By BS Influencer E-bike Reviews?

    Once upon a time, any informational media, be it a newspaper, radio, or TV would make a disclaimer saying that what they are promoting is also contributing to the show's parent company, via advertisements, donations, or similar. The internet basically destroyed that ethical integrity. It happens...
  16. R

    Planning ultralight, stealthy, silent build, questions..

    You nailed it right on the head. There is 'some' progress here and there. Like taking a hub and putting 1:11 gearing inside, but then leaving it QR bolt-on axled. Or...making a thru-axle hub and then leaving it lower-powered direct drive. They tease us with little tidbits of modern design here...
  17. R

    pas sensor problem.

    One thing you could do if you really want PAS is get a longer square-tapered bottom bracket. They have 142mm out there, that will be plenty of room on the non-drive side to fit the sensor. Another thing is that they now have $50 Hollowtech knockoff cranksets including bottom bracket...
  18. R

    First E-bike, issues with motor (motor reversed out of nowhere)

    If this motor is 250 Euros 2nd hand, what is a brand-new 1000W direct drive kit in the UK/Europe? How much does that cost there? I guess we are spoiled in America, a new 1000W direct drive kit here is between $200-250 USD. Tell us what the display name is if you can see it, maybe take a picture...
  19. R

    'lightest.bike' 1.7kg 1000w mid drive

    I guess if the motor mounts can attach fine, and there is a 34mm hole for the crank axle/bb, then maybe it would be OK. The whole crankset bb would be floating in air and attached only by the motor mounts and maybe some DIY bolting. But it could be that the pedals end up 1-2 inches behind where...
  20. R

    My new eBike shop: Structuring, building, and pricing. Reflections and criticisms please.

    This is why 95% of the bike shops will absolutely not touch anything electrical unless the customer bought the whole ebike from them directly (or they bought the ebike for the customer and had it shipped). The other 5% end up getting frustrated with problems and the customer does too. Example...
  21. R

    SM 3-Pin (Male to KT Female) Thumb Throttle With Least Deadband Out of 3 tested: L-Faster

    Short L-Faster throttle test up and down street: much more starting power. Still good modulation after startup, but toned down PAS start from 3 strong to 1 weak and it still starts up fairly strong in PAS1 with about 300W. Then goes down. Power bands in PAS 1-4: all of those wider, much wider...
  22. R

    'lightest.bike' 1.7kg 1000w mid drive

    Here's the Bafang M600 image: And lightest bike: They can't even use the larger bolt holes that the Bafang motor has. And they didn't even use the motor mounts it came with? I can't see those behind the motor. So maybe someone did jerryrig it on a Bafang-specific frame but trust me...
  23. R

    'lightest.bike' 1.7kg 1000w mid drive

    No bueno. This motor is shaped differently and has an external sprocket that sticks out past the motor housing, so it can't fit into any e-bike specific frame like the M600 or any other. Unless it's hanging on by one bolt. One of the other sites had a lengthy mid-drive general commentary, and...
  24. R

    What lcd display should I get.

    750W Bafang rear hub motor. That makes things a lot easier. Display is a custom one by the manufacturer. Can you take a close, clear picture of the controller and what the lettering says on it. Based on that, we can tell you what new display to get.
  25. R

    Throttle cuts off PAS BbSHD

    If you set PAS to 0, you get 0 PAS. Not to be a smart alec about it or anything, but you can't set PAS to 0 and get any type of PAS electrical power assistance. I don't have this motor, but it looks like there are only 3 ways to do the throttle below. Maybe on the first one below, you can put...
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