GT i-drive 2.0 Build

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Re: GT i-drive 2.0 Build

Post by dbaker » Aug 28, 2011 8:39 pm

Be careful with the seatpost....

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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 28, 2011 8:44 pm

dbaker wrote:Be careful with the seatpost....
of what? i'm going to get a new bolt...
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Re: GT i-drive 2.0 Build

Post by dbaker » Aug 28, 2011 9:09 pm

Do you have power?

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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 28, 2011 9:18 pm

yeah, we've got power still. neighbor's don't. we were lucky. we've got a monster tree in front of our house, but wind was blowing from the north, so across street. these 80 year old oaks have roots only on one side cause of the curb... they're all gonna go soon, just a matter of time.

was just looking for another bolt, but the tops are so particular. scavenged the (suspension) seatpost from an old schwinn seudeE. pokes down a mile! almost hits the rear shock! not sure i trust it much more, the inner post is pretty flimsy. i pushed the seat well forward so there isn't as much pressure on the back of the seat.

soooooo glad this didn't happen when Skippic was testing it out this morning, getting it up to 40mph on mass ave... :shock:
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
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Re: GT i-drive 2.0 Build

Post by chroot » Aug 28, 2011 10:05 pm

Oh damn, falling apart on your ebike? and irene hurricane sure damaged lot in your area. bummed hehe :lol:
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Re: GT i-drive 2.0 Build

Post by amberwolf » Aug 28, 2011 11:18 pm

GCinDC wrote:so i geared up to go for a cruise but found that my rear tire was flat, courtesy of another one of these:
which had no problem getting thru the liner, by the way:
If that's a Slime brand liner, write to them about it, because they actually do honor their warranties. When a roofing nail made it thru one of mine, a few years back, they replaced both front and rear liners *and* the tubes, free (including shipping).

notice at the end i was riding through an intersection when i sat down and the saddle snapped off.
Yowch...A long while back, I had a saddle snap at it's rear plastics where the springs attach, whiel I was going thru an intersection in traffic...I ended up almost sitting on the rear tire and might've ended up on the pavement if the front end had not had full baskets of stuff. It was...disquieting, to say the least.

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Re: GT i-drive 2.0 Build

Post by Hyena » Aug 29, 2011 12:47 am

Wow, alot of storms you seem to get there in DC. That's the second big one in a year isn't it ?

Lucky "break" on the seat post, could have been worse. I had the same happen to me on my commuter bike, landing a small gutter jump. The nose of the seat flicked up and hit me in the balls as I landed but atleast I had all my weight on the pedals so the now exposed seat post didn't venture any further north :lol:

I hunted around for a replacement seat post bolt but couldn't find one and ended up replacing it with a high tensile steel bolt from the local hardware shop. A few months later and it seems to be holding fine.
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Re: GT i-drive 2.0 Build

Post by JohnC » Aug 29, 2011 6:50 am

Pretty scary when you have small children. That reminds me of a fluke Cat. 1 hurricane that came through our Virginia-Highlands neighborhood in Atlanta in 1995. Hundred year old oak trees started falling and slicing houses in half. Those things weigh a ton. The trees in our yard fail away from our house, but power was out for over a week and our street was blocked for a few days.
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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 29, 2011 9:20 am

amberwolf wrote:If that's a Slime brand liner, write to them about it, because they actually do honor their warranties.
Thanks, AW. I honestly can't remember if it's a Slime or not. I think I picked it up at the LBS and will go back to check what it was... Maybe I'll search my thread too in case I said something about it! :lol:
Hyena wrote:Wow, alot of storms you seem to get there in DC. That's the second big one in a year isn't it ?
Can't remember. It wouldn't be a big deal if it weren't for these huge dying trees w/ roots on only one side... :? But having a hurricane the same week as an earthquake was notable.
JohnC wrote:Pretty scary when you have small children.
Indeed. Even just dead branches way up there... :shock:
Hyena wrote:The nose of the seat flicked up and hit me in the balls
Oh that's right - Prompting AJ's comment about the oddity considering the small target... :lol: Well, the same thing DID happen to me! But either not a direct hit or not enough force to hurt that much..
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Re: GT i-drive 2.0 Build

Post by amberwolf » Aug 29, 2011 5:00 pm

GCinDC wrote:Thanks, AW. I honestly can't remember if it's a Slime or not. I think I picked it up at the LBS and will go back to check what it was... Maybe I'll search my thread too in case I said something about it! :lol:
I did a quick search of your posts for the word "liner", and this one comes up:
https://endless-sphere.com/forums/vi ... er#p431781
that says it is. ;)
While your'e in taht thread, you can add Seat Clamp failure to the list. :P

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Re: GT i-drive 2.0 Build

Post by Skippic » Aug 29, 2011 5:45 pm

GCinDC wrote:
soooooo glad this didn't happen when Skippic was testing it out this morning, getting it up to 40mph on mass ave... :shock:
Hehe, don't worry I've broken a couple before ^^

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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 29, 2011 6:47 pm

amberwolf wrote:While your'e in taht thread, you can add Seat Clamp failure to the list. :P
:lol: :lol: thanks!
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 30, 2011 9:28 pm

footage purge:
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
GT I-Drive (sold), 20s lipo, 9C, 72V 45A 12FET.

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Re: GT i-drive 2.0 Build

Post by beast775 » Aug 30, 2011 11:03 pm

cool video gc in dc.im always leaning left when your cam is mounted there :lol: .
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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 31, 2011 10:29 am

My wife smoked a lycra dude up Mass Ave hill the other day. :lol: Dude was grinding up the hill when she sped by in a skirt and heels. He was like "WTF?? Ohhhh, I get it..." Here's her ride:
IMG_20110830_070336.jpg
I usually ask her a couple times a year how the bike is, cause she never mentions it (and she rides every day now - including thru stop signs/lights :lol: ), even when the gears aren't aligned and it makes a lot of noise... (She must drop it all the time! Last I checked, the handlebars were out of whack, derailleur all bent...)

But I was asking her how the battery was holding up, since she doesn't charge at work and the return commute is all uphill. Anyway, they're not much represented here on ES, but I thought I'd mention, that compared to my contraption, the BionX has been plug and play since I set it up in 2009 (though I did manage to get a warranty battery replacement in Nov 2010).

And FWIW, the Suede-E I got off CL whose seatpost I just scavenged. Was going to replace the LiMn pack w/ old ping cells but they don't fit in the case...
IMG_20110830_070512.jpg
And here's the comfort bike I used to commute w/ but now use just for hauling trailer-bikes on the weekend. It's got a 9C 6x10 w/ the same controller. I can just plop in my 20s2p lipo pack:
IMG_20110830_070437.jpg
And here's the nanny bike, a friction-drive zappy w/ a 5s lipo pack replacing the old SLA brick. no bms and not charge friendly so needs my tlc each ride. sucker draws 80A tho, so a bit dangerous...
IMG_20110830_070500.jpg
And here's my rolling tripod:
IMG_20110520_165303.jpg
After patching the tube, the presta valve got bent, so I can't screw it in all the way, nor reattach the pump... I need to fix that so I can get the PSI back up over 50, cause I really feel the squishiness while cornering... nevermind jumps. I'll bring it up w/ shop where I got the (not so sure it's "slime") liner.

Oh, and I've got some wobble on the wheel too, perhaps the motor bearings or something. One too many jumps perhaps. But I've got to get the seatpost fixed too before more jumps. LBS measured the post at 31.6, but have no bolts.

I found this in 31.6mm: Avenir 200 Series Seat Post
Last edited by GCinDC on Sep 04, 2011 6:21 pm, edited 1 time in total.
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 31, 2011 12:10 pm

here's a rush hour commute, from july, pre-vaca... i'd forgotten about it. edited in WI, but conn to slow to upload back then... audioswapped for the hell of it.
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
GT I-Drive (sold), 20s lipo, 9C, 72V 45A 12FET.

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Re: GT i-drive 2.0 Build

Post by sn0wchyld » Aug 31, 2011 5:56 pm

GCinDC wrote:here's a rush hour commute, from july, pre-vaca... i'd forgotten about it. edited in WI, but conn to slow to upload back then... audioswapped for the hell of it.
nice vids as always mate
been meaning to ask, whats your top speed on that rig?

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Re: GT i-drive 2.0 Build

Post by GCinDC » Aug 31, 2011 6:51 pm

sn0wchyld wrote:whats your top speed on that rig?
thanks. with rear tire at a slovenly 20psi, and midcommute (after about 3Ah), i did 41mph on a flat (in a tuck), and that was pulling 27A, slippic. :wink: i looked cause i was the only one on the bridge.

down long hills with no traffic, i regularly get it up to 45mph, never higher.

stopped at lbs. unfortunately, my liners are mr. tuffy, and NOT guaranteed.

that shop (hto) scares me. i watched a tech build a bike... was putting stuff on backwards... anyway, the better tech told me he could bend my presta valve back straight and promptly broke it off, flattening the tire. i woudn't have minded if it didn't make me late to pick up the kids... :x
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
GT I-Drive (sold), 20s lipo, 9C, 72V 45A 12FET.

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Re: GT i-drive 2.0 Build

Post by dbaker » Aug 31, 2011 8:01 pm

Which LBS is it?

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Re: GT i-drive 2.0 Build

Post by GCinDC » Sep 01, 2011 3:56 pm

GCinDC wrote:down long hills with no traffic, i regularly get it up to 45mph, never higher.
thought i'd get some gps on the commute. it's got my max speed at 52mph (highlighted text):
52mph_huh.jpg
52mph_huh.jpg (68.1 KiB) Viewed 1598 times
can't be right.... but i haven't configured the CA in a while so I don't know.... hmm

anybody know if mytracks (andoid) is known to be off?
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
GT I-Drive (sold), 20s lipo, 9C, 72V 45A 12FET.

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Re: GT i-drive 2.0 Build

Post by veloman » Sep 02, 2011 1:24 am

Why not get a simple bike speedometer? They're only about $20 and will show all your mileage, ave/max speed, time and so on. 99% accurate if you measure the tire circumfrence correctly. (about 205 cm for a 26x2.0).

In that July vid, I thought there was a cop after you as you rose up from the bridge/overpass in traffic.
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Re: GT i-drive 2.0 Build

Post by biohazardman » Sep 02, 2011 9:27 pm

GCinDC

Looks like you have been baaaaaad again. ;^) Christmas is coming soon and you might not be getting any ebike goodies if someone finds out... HaHaHa.
Thanks for another nice vid for to show kids how not to ride their bikes. I'm glad to see your alive and well and still pushing the envelope. Good to see you are not taking quite as many chances these days too. Have a good one.
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Re: GT i-drive 2.0 Build

Post by GCinDC » Sep 06, 2011 4:04 pm

Hey BioH,

Do you just drop in once every year or so to wave a finger at me? Like your post from Jan 2010:
biohazardman wrote:Not responsible, not courteous and downright dangerous riding that is!
:lol: I'm just kidding. I do ride like a madman sometimes. Besides, you were the first ebike guy to help me out three years ago. So, Cheers! To "Immortality"!

Really, I do ride safer than that (July vid) most of the time now. But I also avoid rush hour most of the time too. Anyway... :mrgreen:

Meanwhile, Seat Post Sizes are a pain in the ass!

I took my broken one to the LBS near work. (The manager has an electric Big Dummy! Just like Jason, but with a stokemonkey motor... He wasn't there so I couldn't ask about it.)
IMG_20110831_103558.jpg
IMG_20110831_103558.jpg (143.33 KiB) Viewed 1490 times
Anyway, the mechanic measure the old seatpost at 31.6mm. Didn't have any in stock. So I bought a new 31.6 online.

It didn't fit; was too big. :x

So I went to CityBikes in Bethesda (w/ whole the bike), and they measured the tube and sold me a used 30.8mm. Seemed a bit loose, but was snug enough w/ the clamp. But only today did I attach the beam rack and it's too loose! I'll put some spacer in there, but sheez, what a pain...

And I gotta pay return shipping on the 31.6... :?
dbaker wrote:Which LBS is it?
FWIW, The scary LBS is Hudson Trail Outfitters. Right next door, but a different mechanic every month, and not experienced...

In other news, was a busy weekend. Drove down to TN to pick up my daughter (w/ grandma for the wk). Spent the night in a cool town, Staunton, VA and took Skyline drive home, which was nice except for all the bathroom breaks and the summons to appear in court for going 47mph in a 25... :roll:
IMG_20110903_122829-1.jpg
IMG_20110903_122829-1.jpg (19.36 KiB) Viewed 1490 times
and the vid showing the outstanding weather...

So that's not ebike related at all, except perhaps to imagine how many tickets I had it I drove a car on a regular basis.... :roll:

Even less related to ebikes, but amusing and "gopro related" :lol: , I was with the family when we saw a big ugly snapping turtle devour a catfish in one bite! The wife totally hadn't believed me that it was a snapping turtle and what it could do, so when it snapped (and everyone screamed) I was in instant I-Told-You-So glory :lol: (I practically ran a turtle-farm while growing up...) Anyway, I ran to the car to get the gopro.... It missed while on film, but came after me! Was much bigger than it looked too...
Youtube channel, 2013 Highlights vid. Ebike Nerdcast.
Giant DH Comp: 20s lipo (11.6Ah), hs3540, Adaptto Mini-E, 900W BMSBattery charger.
GT I-Drive (sold), 20s lipo, 9C, 72V 45A 12FET.

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Re: GT i-drive 2.0 Build

Post by ambroseliao » Sep 07, 2011 11:46 am

That snapping turtle reminded me of another creature from a movie!

Image
ROUS
Snapping Turtle.jpg
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Re: GT i-drive 2.0 Build

Post by ambroseliao » Sep 07, 2011 12:41 pm

GT i-Drive frames are on sale at Nashbar.com

http://goo.gl/VD3wG

Starting at $99 and going to $149. Seems like a pretty good deal. There are hundreds of other frames for sale as well on the site.

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