Do you have room for a double bob or a triple bob? Just wondering if having more contact for the battery base to bob and the bob to frame, plus it being one piece instead of multiple, might help make things more solid.
I have the biggest battery Grin sells, this gigantic thing, on a triple bob and it’s been a lot more solid than I ever expected it to be.
Shoulda said, Double Bob is what I’ve got I think that part is actually pretty stable! It’s that plastic plate that the battery locks to that I lack confidence in.
Iirc you can remove the plastic and there’s a couple water bottle spaced holes drilled in the aluminum you can use to mount, then put the plastic back on. Made for a much more secure mount on my bike
I think I know what you are talking about but I don’t have any more braze-ons down there. Does make me wonder how hard it would be to get somebody to stick a couple more on there.
You can DIY. Drill a hole, drop in a rivnut and use a QR hub to install it.
(I did this to mine to add a third frame mount for the battery)
Park tool approved
That’s awesome but all my front hubs are in wheels…
I will have think on this though. The Voile straps are kind of a crappy solution but they kinda work right now
pull a QR and space it out with some scrap from your garage (see park link)!
Now that you have me thinking about it, I could probably get rid of the hose clamps if I really went to town
So I decided to poke around at the Double Bob today and it looks like it has a set of holes for the hidden slots on the battery mount
One of the screws that came with the Bob was just the right length for this but I am a dumbass and didn’t want to take the battery mount apart
It’s much less wobbly with that screw on there but I’m going stick with the Voile strap for a while as well. Figured I should just lean in to the kit bike dirt bag lifestyle lol
I am thinking about rivnuts to ditch the hose clamps though. I think the clamps actually work pretty well but it is a bad look.
Rivnut it!
Is anyone here running the bbs02 or similar mid drive on a steel frame? Curious to see if you’re finding any bb shell damage. I had mine on an aluminum hardtail - I figured the shitty mount was gonna chew the frame a bit but this still hurt to see
If I decide to remount the motor, I’ll get the Luna brace that straps to the chain stay like a coaster brake lever.
Wow! Mine was good on an Alloy Giant. Not done steel.
This is unreal compared to other options. Has anyone messed with these? @frank_doktor ?
Finally started having some real issues with the TSDZ2. Less than pleased since I was really hoping to put some miles on it this summer.
I think the issue is the sprag clutch bearing that connects the pedal spindle to the output gear:
Doing some reading, it seems like the clutch is not rated for a full Shart’s worth of torque. There were a couple instances of me getting caught in a higher gear than anticipated at the crest of a hill and then feeling something slip when I stood on the pedals - but this is on a longtail so it could have just been the rear tire.
I had been getting some creaking and clunking from the pedals recently but it was mostly isolated to times I was standing on the pedals harder. I let the thing mostly sit for 2-3 weeks while I was doing covid and conferences and now somehow it is way worse. The thing is clicking and clacking whenever I’m moving the pedals, and it does it even when I am soft pedaling. Weird thing is that power delivery seems fine, I don’t get any slipping, and “walk mode” doesn’t sound crunchy.
I got pulled into this German e-bike forum thread and some people on there seem to think that the bearing can slip within the gear (??). I don’t know if I think that is what is happening. But I’m kinda stumped since it isn’t slipping when I’m riding. Anyway I’ve contacted support at Eco Cycles with a recording of the noise, guess I will see what they do about it.
I’m pretty bummed but this does just sort of feel like the territory with kits. I do feel confident that it can be fixed one way or another - the Germans say there is another compatible bearing that is rated for higher torque, and overall the thing seems amenable to user-servicing. I do think I have to walk back my prior enthusiasm quite a bit though…
That’s a bit shit. Was it new or second hand?
I don’t know anything about ebikes but am sniffing around for my mom, so here’s a dq: Is there a tarck-approved off-the-rack ebike from one of the big 3 or 4 that:
Use case is the occasional 3-mile commute downtown and tooling around with my dad on the weekends. She’s pushing 70 and I’m leery of the big powered-up motors (but I worry, that’s my job)
Kind of digging the Spec Turbo Como SL but not sure if she’ll enjoy the bikeshare aesthetic. Same issue with the Terns
Electra Townie Go maybe? The 8D EQ step-thru is just barely under 50 lbs.
I bought it new. One one hand I’m not surprised, the motor itself is not outrageously expensive (though a nice display and a pre-installed upgrade brought the price up). Now that I’m looking around the forums it seems like a relatively common occurrence, but OTOH people claim to use these kits for mountain biking…
I will just have to see what Eco Cycles says/does. They only have a 90 day warranty for kits, that I am still well within, so I’m curious to see how they handle it.
I can’t comment on the nicer motors but I will say I was surprised at how tame my torque-sensing pedal assist motor is (when it was working lol). They come close to pedaling themselves on the higher settings, but that means you can just soft pedal around and still actually get from place to place. 28mph is pretty fast yes but on a pedal assist bike you would really have to keep cranking on it to go that fast.
All that said I didn’t install a throttle on my bike so I can’t comment on that. I imagine if she planned to use the button a lot then it could get away from her at some point.
