![]() So, I made a 3d printed spacer to push the plate about 14mm out of the way of the bolts: One of the quirks to this is that you can't just bolt the base plate on right after drilling the bolts/nuts from the seat would interfere: Avoid the cases with the controller spot, the non-controller base plates have more, better attachment points. I specifically picked up a DP-6 case with 70 spaces (will be a 20s3p) so that I could get the most out of the space. You need to mount this pretty close to the suspension, but there is room, even to be able to take the battery off without unbolting everything. Here's how I went about it:įirst, I figured out where it could go. ![]() ![]() One common approach is a triangle battery in the frame, but I wanted that space for storage and I much prefer the "under seat" technique. Lots of folks with this bike will install a second or third battery. I've had this happen before and fixed it with one of these freewheel relocators so I'll pick another up and should be sorted on that front. They turned out alright.Īlas, even with the wheel spinning nicely, I only have access to the smallest 4 gears because the alignment is too far inward. While Grin makes freewheel spacing washers, they seem to be the only place I can source these and shipping cost+time from them.well, I opted to bust out the CNC and make some out of 6061 aluminum (since it's what I have on hand). This works for a single speed freewheel, but when you add on a 7 speed, you need to bring that flange out further so you can wrench down the fork. On the DD45 the drive side axle only has a "flange" about 20mm long. But got it installed, did a truing (wasn't too hard, that part), added the tannus armor, put in the trube, mounted the tire (vee speedsters). Moved my statorade'd-and-hubsinked DD_45 FST motor into the fatbike rim. However, the WH different was incredibly minor (962wh vs 932wh for 2170's) that it doesn't make much sense to abandon the pre-made cell holders that will come with it. I toyed with putting 18650's in the bigger Dorado case (the normal cases can only fit 80), and found a layout that might fit 100 cells in there for a 20s5p setup. The total WH will come out to just a hair over 1500, which will give me a range anywhere from 30-75 miles based on my general 20-50wh/mi estimate (trends towards 40). Each could easily handle a 60A draw individually, but combined won't even break a sweat. The DP6 will house 60 molicel p26a cells (from a different build which I ended up having to downsize).īetween the two of them, both at 20s3p, I should get 12.6 and 7.8 Ah respectively. The Dorado will hold 60 molicel p42a cells. The battery plan is to pick up a Dorado 21700 case (excited to see these now) and a DP-6 shark style case which will go under the rear-rack. Should be a really fun build, and I'm excited to have a dual suspension 20x4. VeeSpeedster tires (so smooth, so quiet).Build up a dual 72v battery config later (AX shipping, see ya in a month or two!).dual Grin v4 torque arms (possible a custom torque plate at some point).Rear direct drive (statorade and possibly hubsinks).Suffice it to say, as is needs a LOT of TLC - but that's ok, I mostly bought this for the frame and style and I'm well on my way to upgrading it anyway. Bulb inside the headlight knocked loose.Brake levers only activating ebrake sensors once you've applied HULK SMASH pressure.Slice in the display wiring up to the fork.I found a number of other issues the deeper I went: I mean, I could see the motor coming out, the rotor being misaligned and scraping on it - but wouldn't you need to ride it that screwed up for, like, MILES to grind off that much? Plus there's no damage to the rotor. I can't fathom how this was done - it's like an angle grinder was pushed against the caliper here. I mean, I'm genuinely amazed, especially given this is a geared motor with a freewheel. I've never heard of somebody spinning out the axle on these under stock conditions. Here's the first thing I found when taking the motor out to see what's up. Seller said it had an "08H" error, which I looked up and found to be a hall sensor error. As I began to tear it down to inspect things, it quickly became apparent why the seller was willing to let it go.
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