MotoBobMy Adventures with MotoBob - an ongoing saga
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This
is what you get when you send money to Thunderstuck EV for MotoBob. |
Shipping weight was somewhere in
the 50 lb range. Shipped UPS ground, it only took a week for MotoBob to
arrive. Some assembly required. If you are a knothead with tools, routinely break pliers, and folks run when you pick up a screwdriver; Take this box directly to your local Bob retailer and pay them to assemble it. Inside there are papers indicating that this whole shebang must be assembled by a bike dealer who is clueful. I have been working on bikes since 1984 was very much a futuristic concept and so far down the road that I wasn't concerned. I own hundreds of dollars of bike tools and don't trust bike dealers. |
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| After digging out all the
packaging, out comes the new MotoBob baby in a somewhat larval form. |
A
New Born MotoBob. If after staring at this weird lump of cool stuff you
just bought confuses you at all. Take it to the bike shop now. This page does NOT give you permission to build this thing up yourself. The directions say not to, and so does the author. No instructions here. |
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Detail of what makes MotoBob not a Bob. But better. |
The fancy 600 watt brushless
motor. If you grab the shaft and turn it by hand, this thing will scare
you. Keep yer credit cards away. I don't have a way to measure the gauss
field of this thing, but the shaft "notchiness" is pretty pronounced. My first impression was that the wiring et all was pretty much a kludge. However, on closer inspection, everything is laid out to do what needs to be done. As shown, the motor mounts directly to a plate that is welded in place so that the primary cog alignment doesn't seem to have much or for that matter, any adjustability in drive pitch at all. This was initially a concern. |
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| Here is
MotoBob partially assembled, or assembled enough to roll out the door
and get on with putting together my HPV/EV hybrid. (what nonsense, more
like LFMB, or lazy fatman's bike). |
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Now
you can see the alignment of the drivetrain. |
As noted
above, I was concerned about the lack of adjustment on the motor mount.
Stuff that I build tends to have a fair amount of adjustability in the
design. Apparently, this is because I just can't handle good specs. The chain drive lines up very nicely. With the drive side of the drivewheel up against the end of the dropout, there is what looks very much like exactly enough slack in the drivechain to avoid wear in the motor bushings, but tight enough to avoid a lot of chain slap. Seems pretty close to ideal. The drive line alignment is dead-on. No adjustment needed. |
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| This is just another detail to
show you how this thing is built. In this you can see how tight the whole drive train assembly comes together. ThunderStruck EV did a pretty good job jamming all of this in there. Sure, there are things I initially thought I would change, and maybe I will. But when one sits down and does the math. Lesse, a new Bob trailer, that nifty motor, a pair of those B&B 22ah 12v batteries, a motor controller, some kinda throttle controller, spoking it all together to where it actually works, well, Looks to me like $700 is the last nickel deal around if your time is worth anything at all. |
Another detail shot. |
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Getting
closer now. |
MotoBob nearly fully transformed
into LFMB (hpv/ev hybrid). The HPV section is an old pre-Evolution
Fischer CR-7. I've had it for years and years. Bought it second hand
with over 2000 logged miles on it at the time. Lots more since. Good bike. I used to commute from Crystal City, in Arlington Va to Wheaton Md on this thing back in the day. It's a great bike. Suntour drive train, DiaComp brakes, (stop like anchors) Japanese built hybrid frame, (steel rear triangle, big tube aluminum main triangle). Which makes it either priceless or worthless. I like it, I'll keep it. I also have an Evolution era CR-7 that is my mountain bike. It has thousands and thousands of logged miles. I acquired it last summer. |
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And here is a view stuck together in gimp to get an
overall idea of how bloody long a
MotoBob HPV/EV hybrid is. This monster is almost as long as my VW
Rabbit! The view out the window shows the snow and ice. So I haven't bothered finishing the assembly yet. Ya know, put on the fender, add the additional lighting, et al. Hopefully when I get back from Michigan in a couple of weeks. The snow and ice will be gone from the trails and I can give'er a go. I'll be able to tell ya then what it's like to drive the LFMB. So, in the mean time, book mark this page, and come back in check in a while, and I'll have some more info for ya. Complaints, criticizms, commentary, controversy, conversation, and so on should be directed to me. Send email here. So, that's all folks. At least for now.
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UPDATE: Motobob Fail (not it's fault reallyBecause I referred to this page off my blog, it has gotten a few hits, and I've been emailed a few times by folks asking what was the final verdict on MotoBob. Well, ultimately, for me, it failed. The rig is really clumsy and awkward. A real hoot to ride certainly, but not quite as practical as I had initially imagined.
Riding MotoBob:
Not much different than riding with just good ole Bob. The weight of the batteries makes it a bit awkward compared to just
an empty bob, but all Bob pilots will understand this. It's awkward until you get used to it. Not a big deal, but it does
take some getting used to.
I'm editing this in Mac 'terminal' and it's really making me crazy. I am not a big OSX fan. vi isn't behaving, I just fumblefingered 45 hard edited lines out, and 'r' isn't replacing them.
Okay, where was I?
Other riding concerns; So, in conclusion, MotoBob: Good Idea. Solid Implementation, good fabrication by Thunderstruck EV. Quality product. But, like folks who invent stuff know, sometimes that stuff doesn't add up to a finished product. MotoBob is a 'back to the drawing board' concept. Thunderstruck took Motobob through at least 2 more incarnations before tossing in the towel. The next iteration went to a more powerfull hubmotor, and then the hubmotor powered MotoBob made it to the Bob Ibex, with a suspension system. Maybe the Ibex motobob allievated some of the principal concern issues I experienced, but it doesn't matter. MotoBob has been dropped from the their product line. The good folks at Thunderstruck EV still stock stuff to build a motobob if you want to give it a go. Contact them.
Epilogue
The small horse farm family sold and moved away. I conveyed with the property to the new owners and maintained it sans horses for another few seasons. |
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