Search found 20 matches

by JeffnAZ
Dec 11 2020 12:37pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

Hmmmm... I will definitely check that out. I think getting a washer past the motor cable is going to be a problem. Perhaps a slotted washer? ...good idea to look into. I'd rather do that if it works out, thanks. I just dropped off the motor and rim to be laced up. I'll see how it measures out when ...
by JeffnAZ
Dec 10 2020 9:28pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

the caliper needs to be adjusted to the outside a couple millimeters but there's no adjustment left in that direction with the IS brake mounts. Pretty sure I'm going to take the caliper to a machine shop to have the difference shaved off. And the derailleur is really close to the hub You may be abl...
by JeffnAZ
Dec 10 2020 2:26pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

Motor came in the mail... It's a beauty. GMAC10T. It's mocked up in the photos below with just a few minor fitment concerns that I think I can solve pretty easily. The pin that holds the brake pads in the caliper touches the hub. I can easily cut a few millimeters off that. and the caliper needs to ...
by JeffnAZ
Dec 06 2020 1:50pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

Still waiting for parts... but here she sits ready to be fun. I did get a good deal on a used replacement shock. The original was old, leaky and noisy. So old that I couldn't find a rebuild kit and it looked pretty worn inside the air can. So a rebuilt replacement ended up being cheaper than a rebui...
by JeffnAZ
Dec 04 2020 1:15pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

With some effort, I would suggest using Bafang FAT motor machined to fit 135mm dropout like I did. You will save money on motor purchase and gain a way more torque with slight motor weight increase compered to GMAC. My modified Bafang FAT running at 78V battery is holding 3,5KW peaks no problem. To...
by JeffnAZ
Nov 23 2020 5:19pm
Forum: EBike General Discussion
Topic: Shave seat tube???
Replies: 9
Views: 580

Re: Shave seat tube???

spinningmagnets wrote:
Nov 23 2020 1:43pm
I like that you drilled a hole at the base of the split-cut.

If you didnt, a "stress riser" might develop, and a possible crack might grow in unpredictable directions...
Thanks... exactly why I drilled it. Your help and interest is much appreciated.
by JeffnAZ
Nov 22 2020 8:12pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

Still not an E update... But more "readying" the bike today. One of the goals with this build is to hand it off to my grandson as soon as he is big enough to ride it, and he's getting close already, so I'm making the cockpit small guy ready.. and I kinda wanted an excuse to try narrow bars...
by JeffnAZ
Nov 22 2020 12:28pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

No E updates yet but ... She's a roller!!! Converted the front tire to tubeless. Neither the rim nor tire are TR but I got it sealed and it's holding. Cut down the seat post about 5/8" (~16mm). Swapped on a better seat, more comfortable, and with a lower stack height and wider butt coupling. So...
by JeffnAZ
Nov 22 2020 11:51am
Forum: EBike General Discussion
Topic: Shave seat tube???
Replies: 9
Views: 580

Re: Shave seat tube???

spinningmagnets wrote:
Nov 21 2020 7:53am
I wanted the seat as low as possible...
Thanks! Result is perfect. The hose clamp guide worked great! Removed 5/8" (~16mm). Could have gone lower but I couldn't bring myself to drill a hole in the flag.

Couple pics.
IMG_0660 copy 1.jpg
IMG_0660 copy 1.jpg (257.26 KiB) Viewed 265 times
IMG_0664 copy.jpg
IMG_0664 copy.jpg (277.52 KiB) Viewed 265 times
by JeffnAZ
Nov 21 2020 10:56am
Forum: EBike General Discussion
Topic: Shave seat tube???
Replies: 9
Views: 580

Re: Shave seat tube???

spinningmagnets wrote:
Nov 21 2020 7:53am
I wanted the seat as low as possible...
Thanks, man. Enjoy your weekend!
by JeffnAZ
Nov 21 2020 5:23am
Forum: EBike General Discussion
Topic: Shave seat tube???
Replies: 9
Views: 580

Re: Shave seat tube???

spinningmagnets wrote:
Nov 20 2020 9:45pm
I did that years ago, and no cracks have formed. Seat tube still works fine.
Thanks! Did you happen to extend or modify the split on the back of the seat tube that allows the tube to clamp down?
by JeffnAZ
Nov 21 2020 5:17am
Forum: EBike General Discussion
Topic: Shave seat tube???
Replies: 9
Views: 580

Re: Shave seat tube???

Lol... thanks folks. Thought for sure this idea was going to be criticized. But no. I’m not the only person to think of cutting down a seat tube for a fraction of an inch of adjustment. Awesome.
by JeffnAZ
Nov 20 2020 7:24pm
Forum: EBike General Discussion
Topic: Shave seat tube???
Replies: 9
Views: 580

Shave seat tube???

I'm getting a bike ready for a E build and one of my goals is to get the seat as low as possible. I'm thinking about cutting a little off the top of the seat tube to achieve this. Anyone try this??? Couple pics... was thinking shave just about a quarter inch (6mm) off the top. It should still clamp ...
by JeffnAZ
Nov 20 2020 6:41pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

The biggest difference I see on forums is the preference to upload photos rather than links or hyperlinks. That's because the whole Photobucket hostage situation was a big lesson learned where all the photos in older posts disappeared, not only here, but virtually all forums. :oops: Forum itself se...
by JeffnAZ
Nov 20 2020 6:20pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

E-HP wrote:
Nov 20 2020 6:00pm
Welcome to the forum, by the way. :bigthumb:
Thanks!
by JeffnAZ
Nov 20 2020 5:53pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

It'll be a 160mm disk on the rear to start. The GMAC has the 6 bolt disk option. I do believe you can do a sort of reverse throttle thing for the region... I have considered something along the lines of what you're suggesting. A button brake might be cool even with the disk. I just haven't gone dow...
by JeffnAZ
Nov 20 2020 5:52pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

...okay. i was able to add links to pics but not the actual pic? can anyone see my pics in the above post? Nope. But there's a sticky up top that tells you how to post pics. Works best to upload to the forum server, after reducing the size to fit within the limit. ...still working on it from the go...
by JeffnAZ
Nov 20 2020 5:47pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

Since you're going with a 24" rear, what's your plan for rear brakes? If you're using regen with the GMAC, you won't need the rear brake lever. Might be cool to convert that into a variable regen lever. :thumb: It'll be a 160mm disk on the rear to start. The GMAC has the 6 bolt disk option. I ...
by JeffnAZ
Nov 20 2020 4:00pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

Re: 1st build / and 1st post / Grin build

...okay. i was able to add links to pics but not the actual pic? can anyone see my pics in the above post?
by JeffnAZ
Nov 20 2020 3:57pm
Forum: EBike Build Threads
Topic: 1st build / and 1st post / Grin build
Replies: 28
Views: 1421

1st build / and 1st post / Grin build

Ahoy, I've been reading here for about a year... thanks to all of you who've posted so much info to make this build easier. Most of what I'm doing is a result of ideas I got from you folks. Posting this build to pitch in to all the info and, of course, to receive suggestions. I have an old bike that...