Search found 57 matches

by Tony01
Oct 25 2018 2:22pm
Forum: E-Bike General Discussion
Topic: Tire slipping on rim causing valve stem to tear and or flat
Replies: 32
Views: 952

Re: Tire slipping on rim causing valve stem to tear and or flat

Electric torque is hard as compared to gassers. High power ebikes have the torque of MX motorcycles. You will soon experience the efficiency of power transfer that is possible to achieve building EV. Of course we need to care properly mounting quality rims and tires, but nevertheless bicycle tires ...
by Tony01
Oct 22 2018 4:50pm
Forum: E-Bike General Discussion
Topic: Tire slipping on rim causing valve stem to tear and or flat
Replies: 32
Views: 952

Re: Tire slipping on rim causing valve stem to tear and or flat

you guys must be doing something wrong. in over 20,000 miles of riding hard and fast on bicycle tires this has never happened. I have also never blown a tire off the rim. A good portion were on chrome rims as well.. which have about half the friction coefficient of aluminum. Combinations that have w...
by Tony01
Oct 22 2018 1:20pm
Forum: E-Bike General Discussion
Topic: Fabricating a curved side battery box?
Replies: 10
Views: 462

Re: Fabricating a curved side battery box?

Thanks for all the effort you guys put into this post. I’ve researched the snot out of each method and decided I’m gonna be going with fiberglass. It seems like the smart choice. For the same price I could have got welding gas and some sheet metal, but I think I’ll get a better looking product like ...
by Tony01
Oct 18 2018 11:02am
Forum: E-Bike General Discussion
Topic: Fabricating a curved side battery box?
Replies: 10
Views: 462

Re: Fabricating a curved side battery box?

Thanks for the replies. However curving angle extrusion and bonding it to steel is not gonna fly. Been there done that bracing the rear end of a Schwinn with 1” c-channel. Strong but time consuming. At the moment I’m doing a cost analysis. I was thinking at first to weld a continuous tab to each sid...
by Tony01
Oct 16 2018 12:25pm
Forum: E-Bike General Discussion
Topic: Fabricating a curved side battery box?
Replies: 10
Views: 462

Re: Fabricating a curved side battery box?

Ahhhh crap... fiberglass sounds like the way to go. I’ve just been trying to avoid it because it is another area of fabrication I know nothing about... I already feel as if I’m way in over my head on this build and haven’t even finished the swingarm yet!!! Making it non removable sounds easier than ...
by Tony01
Oct 15 2018 2:31pm
Forum: E-Bike General Discussion
Topic: Fabricating a curved side battery box?
Replies: 10
Views: 462

Fabricating a curved side battery box?

The time has come in my build to have to figure it out, and soon. I’m building a full suspension Schwinn cruiser and need a box that can stick to the curved contours of the frame. My battery will be about 17kg, plus controller and onboard charger probably another 3kg, bus bars etc so let’s say it ne...
by Tony01
Sep 24 2018 12:48am
Forum: Items for Sale - New
Topic: Clamping torque arms 10mm flats SOLD CAN MAKE MORE
Replies: 1
Views: 265

TAs

ALL SOLD! regular price was $45+shipping If you need more I can price it out. Seems these sold pretty fast so, if I can get 3 people that want them, I can have them delivered in about a month. Contact me or post here. Will be finding a different machinist. The work this guy did would never fly in an...
by Tony01
Sep 22 2018 12:50am
Forum: Items for Sale - New
Topic: Clamping torque arms 10mm flats SOLD CAN MAKE MORE
Replies: 1
Views: 265

Clamping torque arms 10mm flats SOLD CAN MAKE MORE

ALL SOLD!! See reply post below! CNC milled clamping torque arms for hub motors with 10mm axle flats (with qs205 step relief) Price shipped to lower 48 USA. Can ship elsewhere for a price. Located in San Jose, CA. Material: mild steel (weldable) Slot: .402”. After painting will be very close to 10m...
by Tony01
Sep 22 2018 12:41am
Forum: Items Wanted
Topic: Torque Arms?
Replies: 3
Views: 239

Re: Torque Arms?

Ahhh sold
by Tony01
Sep 22 2018 12:38am
Forum: Items Wanted
Topic: Torque Arms?
Replies: 3
Views: 239

Re: Torque Arms?

Ahh double post
by Tony01
Aug 26 2018 11:56pm
Forum: E-Bike Technical
Topic: High power ebike frame
Replies: 26
Views: 952

Re: High power ebike frame

Qs273 is a BIG motor. It’s going to handle like shit pretty much anywhere except for drag racing. Too much rotational mass too far away from the best place (the middle). For off-road you will want to go with a mid drive. Your best bet for a swingarm is still a dirtbike 200mm swingarm. That takes car...
by Tony01
Aug 23 2018 2:51am
Forum: E-Bike Technical
Topic: High power ebike frame
Replies: 26
Views: 952

Re: High power ebike frame

Qs273 is a motorcycle motor. you can easily modify a motorcycle frame. 200mm is a standard swingarm size. You’ll just have to figure out the torque arms.
by Tony01
May 29 2018 6:55pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 5862

Re: Cheapest e-components for 55mph?

Thanks for all the effort everybody put into this thread. It didn’t go to waste. I’ve ordered a qs205 with the 19” moto rim, CAv3, and an ASI 4000w controller from Alan at ERT. Got a smokin deal. Still need to buy the battery and charger. Probably gonna go with multistars and meanwells. I looked up ...
by Tony01
Mar 31 2018 5:50pm
Forum: E-Bike General Discussion
Topic: Aluminum vs Steel vs Carbon E-bike Frames
Replies: 50
Views: 4229

Re: Aluminum vs Steel vs Carbon E-bike Frames

Interesting read http://www.sheldonbrown.com/chicago-schwinns.html The limit for a stock schwinn is approx 8hp, with 4 gussets in the rear and a sleeved seat tube is around 11hp, and with major gusseting and bracing around 15hp. Unfortunately. However, I think that by cutting the rear end off and b...
by Tony01
Mar 22 2018 5:22pm
Forum: E-vents
Topic: Calling all Bay Area ebike riders
Replies: 44
Views: 8107

Re: Calling all Bay Area ebike riders

Getting the parts together for an ebike...
by Tony01
Mar 21 2018 1:05am
Forum: E-Bike Technical
Topic: 120/80-14 on a 14x1.85?
Replies: 0
Views: 323

120/80-14 on a 14x1.85?

Will it fit? There is a 90/100 on it now, it’s a cheap pitbike wheel I got cheap. I want to put the widest and tallest road tire possible.
by Tony01
Dec 14 2017 4:54pm
Forum: E-Bike General Discussion
Topic: Aluminum vs Steel vs Carbon E-bike Frames
Replies: 50
Views: 4229

Re: Aluminum vs Steel vs Carbon E-bike Frames

I like building with steel because it is easy to work with and very, very cheap. $200 welder, $60 for grinder and supplies, $10 map gas and.... $30 worth of local steel for my project. However it is very heavy. I'm looking into cf myself. I'd be looking into aluminum too however, there is nothing ne...
by Tony01
Dec 01 2017 1:34am
Forum: E-Bike General Discussion
Topic: Looking for fake engine and engine sound for E-chopper
Replies: 15
Views: 805

Re: Looking for fake engine and engine sound for E-chopper

reminds me of those guys drag racing while driving slow :roll:

I'd do it tho :lol:

by Tony01
Dec 01 2017 12:46am
Forum: E-Bike General Discussion
Topic: Low cost Down Hill Triple Crown Fork
Replies: 34
Views: 12700

Re: Low cost Down Hill Triple Crown Fork

I have never run a suspension fork I couldn't trust.. So I ended up running a dual crown rigid fork for a long, long time. Worked great, only I lowsided many, many times. But I've never had a front end failure. If I were to buy a fork again, I'd go to treatland.tv in SF and get an EBR hydraulic mope...
by Tony01
Dec 01 2017 12:37am
Forum: E-Bike General Discussion
Topic: Suitable rim width?
Replies: 24
Views: 1482

Re: Suitable rim width?

You can run pretty much any rim you want. But wider is better for the street. I ran a DM24 in the back for over 10000 miles with tires from 1.95 to 3" wide, riding hard and fast as well. I'd go with a wider rim however, cause tires will wear to a flat and it's better to have a less sharp angle on th...
by Tony01
Nov 29 2017 11:08pm
Forum: E-vents
Topic: Calling all Bay Area ebike riders
Replies: 44
Views: 8107

Re: Calling all Bay Area ebike riders

Hey can I ride with you guys?!

I'm saving for an ebike... Currently building another gas bike to sell and restoring a vintage schwinn road bike that MAY or may not get a hub motor.

I want to convert this build to electric:
Image
by Tony01
Nov 15 2017 6:01pm
Forum: E-Bike General Discussion
Topic: E-bike Average speed vs Bike vs Car
Replies: 21
Views: 1300

Re: E-bike Average speed vs Bike vs Car

Nice. Yea 600lbs is no joke! Axle above is definitely the way to go. I just did mine like I did cause it was easy. There is a guy on bike forums, and a thread, about surge brakes. Someday...

Here it is, post 11
https://www.bikeforums.net/utility-cycl ... rakes.html
by Tony01
Nov 15 2017 12:19am
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 5862

Re: Cheapest e-components for 55mph?

I looked up everything in your post. Dammit Rhino, why'd you have to show me those monster brakes. Now I have to upgrade :evil: I'm only using the motorcycle frame and fork because it was cheap ($80 for a rusty motorcycle) and was easier than building a whole new frame. With this one I only built th...
by Tony01
Nov 14 2017 6:50pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 5862

Re: Cheapest e-components for 55mph?

I have a lot to say on the safety of bike frames, brakes, and wheel components. The short version is, respect the power :twisted: Stock steel quality bicycle frames will work fine up to around 4hp with little to no modifications. When my bike was a schwinn, I braced the heck out of it: 212cc Schwinn...
by Tony01
Nov 13 2017 2:45am
Forum: E-Bike General Discussion
Topic: What's a good e bike headlight?
Replies: 250
Views: 25608

Re: What's a good e bike headlight?

The LED work light from the auto parts store works great. I use the round one with 6 LEDs for $30. Very bright. Main thing to look for in lights is you want flood lights, not spot lights. Those little retro looking ones for $6 a piece on ebay are cheap spotlights which are not so bright, and their m...