Search found 77 matches

by Tony01
Nov 09 2017 11:27pm
Forum: E-Bike Technical
Topic: Freewheel for Mxus 5k Turbo
Replies: 6
Views: 962

Re: Freewheel for Mxus 5k Turbo

You can try treatland.tv , which is a place in San Francisco that sells parts for moped. They will likely have a freewheel for you. If they don't have it listed on their site, send them an email, they usually respond within a day.
by Tony01
Nov 09 2017 11:20pm
Forum: E-Bike Technical
Topic: Lacing Pattern for Q128 Hub Motor on 700c?
Replies: 20
Views: 3323

Re: Lacing Pattern for Q128 Hub Motor on 700c?

2 cross should be fine for you. I just laced a 26" rim with a 105mm pitch circle hub 3 cross. The more crossings the stronger the wheel is to hub forces. I like to always do 3 cross or even 4 cross if there is enough space. Lacing a wheel is easy. If you have a stand its REALLY easy. I used to just ...
by Tony01
Nov 09 2017 11:01pm
Forum: E-Bike Technical
Topic: 19" Motorcycle Wheels vs 26" Bicycle Wheels (rim and tires)
Replies: 2211
Views: 321856

Re: 19" Motorcycle Wheels vs 26" Bicycle Wheels (rim and tir

Best to go with double butted spokes, 12G would be the thickest to go. You actually want a bit thinner, so 13G/14G butted Sapims if possible on moto rim. Nipple holes on moto rim are quite wide. Spinning Magnets did an article on moto rims. Can use washers on nipples. I'd go with 12g minimum on a r...
by Tony01
Nov 09 2017 4:46pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

My gut reaction is if your gasser is that good, why go electric? Not for legality, that's for sure. Or maybe for legal, but that means limiting power to whatever is legal where you are, which is cheap. Bad ass electric, as you want is never cheap. You will either spend a lot on batteries, or spend ...
by Tony01
Nov 09 2017 5:51am
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

Cool, so it looks like I have a few options. Tig, the motor you linked to is rated at 3kw. Why is that motor OK to run in mid drive, but a 5kw rated motor is needed for running in the hub? Does it have something to do with being able to gear it correctly, like my gas motor? Nice project you have lin...
by Tony01
Nov 08 2017 10:28pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

Holy shit MadRhino, that's a lot of miles! Cromotor V2.. 6kw.. I guess qs273 is the way to go. Hub is ok for me, if anything there is the simplicity. I was just thinking mid drive, because it would be easier to build right this minute, but if I was building a new bike which I'll probably do.. hub fo...
by Tony01
Nov 08 2017 5:06pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

For me, there is one major factor that separates bicycles from motorcycles. Wheels and tires. bicycle tires = bicycle, motorcycle tires = motorcycle. rumme, what you have isn't a bicycle, its an underpowered electric motorcycle. If you insist on considering it a bicycle, then it's a grossly overweig...
by Tony01
Nov 08 2017 12:56am
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

If you are willing to use ferro fluid and/or heat sinks, you can run the lighter weight 3k motor, at 5k or more , this achieving 40+ mph pretty easily. I still think that mounting such a setup in a 26" bike rim, is a mistake. You may get the top speed you want on flat roads...but torque will suffer...
by Tony01
Nov 07 2017 10:58pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

Thank you markz and wturber for the very helpful comments. Eye opening! My budget is wide open if the cost is warranted, but I'd like to keep it close to or under $1200 for e-components. It seems the 50-60 range is very expensive and very, very heavy. What are the limitations of running, say, a MXUS...
by Tony01
Nov 07 2017 1:22am
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Re: Cheapest e-components for 55mph?

Thank you! Here's how it sits now, needs lights put back on but I been busy riding it! https://flic.kr/p/GiY9y8 Btw hub motor recommendations are ok, I would not mind building a new bike with aluminum rims. This one is extremely heavy. The steel rims were cheap at $14ea, and the 7/8" .100" wall tubi...
by Tony01
Nov 06 2017 10:58pm
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 105
Views: 8545

Cheapest e-components for 55mph?

Hello, I'm a gas motorized biker looking to go electric. Can you guys recommend me some components? The bike side of it is handled, strong frame, steel 50mm wide 26" rims, 10g spokes, etc. been reading a lot and just getting more confused. Desired: Speed: 45-50mph continuous, 55-60 bursts Range: 15m...
by Tony01
Jan 24 2017 2:33pm
Forum: E-Bike Non-hub Motor Drives
Topic: Printable gear box?? and sprocket adapters.
Replies: 3
Views: 1105

Re: Printable gear box?? and sprocket adapters.

That yt link above looks like a ravigneaux gear set. Good luck finding one small enough for us. I'm working on a 2-speed for gas bikes. I already have the gearset, it's a .625 first gear with direct 2nd and the gearset overall is 4.5"X1.1". Will be using it with my 10hp 212cc motorized bike (that to...
by Tony01
May 12 2016 2:11am
Forum: E-Bike Non-hub Motor Drives
Topic: Torq-A-Verter CVT
Replies: 19
Views: 3817

Re: Torq-A-Verter CVT

macribs, my reply was about the CVT linked to in the original post, the $100-180 GTC/COMET/Clone CVTs for minibikes and go karts. My setup was 8:1, 26". One day my driver unit exploded 3mi from home because I didn't use a long enough crankshaft bolt. I locked the bike in the bushes behind a school f...
by Tony01
Feb 16 2016 8:04am
Forum: E-Bike Non-hub Motor Drives
Topic: Two speed gear box for e-cargo bicycles?
Replies: 102
Views: 10786

Re: Two speed gear box for e-cargo bicycles

Is it time to unveil the latest 2-speed tranny design? Been a long while since anyone has made a seriouse inquiry.....& of the 10 units built & delivered, the only guy who ever posted a build with one was Aussie Jester. (Heck he built two bikes with them) that & Etards road racer(which I built) is ...
by Tony01
Feb 13 2016 11:06am
Forum: E-Bike Non-hub Motor Drives
Topic: Torq-A-Verter CVT
Replies: 19
Views: 3817

Re: Torq-A-Verter CVT

These CVTs are the evil in the world of low-powered bikes, IMO. Although they say they are good for 3-8hp, they really aren't good under 5hp at the very least. There are a few problems in play here: First off, being a mechanical torque-sensing setup, the CVT upshifts depending on load, and therefore...
by Tony01
Feb 13 2016 8:16am
Forum: E-Bike Non-hub Motor Drives
Topic: Two speed gear box for e-cargo bicycles?
Replies: 102
Views: 10786

Re: Two speed gear box for e-cargo bicycles?

Find a 2-speed freewheel. Like this ebay- SUNTOUR-FREEWHEEL-2-SPD-16-20-HOLE-SHOT-BMX-RACE-RACING-cruiser-freestyle-NOS . I think this is your best bet and the lightest too. One of these older 2-sp FWs will let you use heavier duty BMX chain. Retro direct is cool too. BUT, do you want engine braking...
by Tony01
Nov 19 2015 1:48am
Forum: E-Bike General Discussion
Topic: Spokes for fat bike wheel lacing job.
Replies: 9
Views: 821

Re: Spokes for fat bike wheel lacing job.

I'm using 14g straight gauge spokes on a hub with 3mm holes, no washers and it's fine. As long as the head doesn't pull through you will be okay. If you want to use washers, use brass ones with a center hole no more than .010" bigger than your spokes.
by Tony01
Nov 18 2015 8:51pm
Forum: E-Bike General Discussion
Topic: E Bike Automatic Transmission
Replies: 19
Views: 2765

Re: E Bike Automatic Transmission

Does the auto CVT give engine braking?? In CA motorized bikes must be automatics.. I built an automatic 2-speed similar to rc nitro cars. Two chains, one freewheel, and one centrifugal clutch on the output shaft. The response is good and you have engine braking in the only gear you really need to us...
by Tony01
Nov 13 2015 8:57pm
Forum: E-Bike General Discussion
Topic: Are electric bikes the wheels of the future
Replies: 15
Views: 1203

Re: Are electric bikes the wheels of the future

If electrics could be recharged in just a couple of minutes like filling a tank, they'd definitely be the future. That is the biggest hurdle for me. Range of 30-50mi is cool as long as there is quick recharging at as many places as there are gas stations. Personally I think a geared gas hub motor is...
by Tony01
Nov 13 2015 8:34pm
Forum: E-Bike General Discussion
Topic: Need a planetary gearset for my auto 2-speed
Replies: 15
Views: 1480

Re: Need a planetary gearset for my auto 2-speed

Xiongda https://www.electricbike.com/2-speed-e-matic-xiongda/xiongda6/ From counting the teeth on that pic I get r-54, s-30, so my ratio would be (30+54)/54= 156% Where can I get those parts? All I see is complete hubs. SA got back to me with a list of distributors but no retail sellers. Weak. Seems...
by Tony01
Nov 13 2015 6:18pm
Forum: E-Bike General Discussion
Topic: Need a planetary gearset for my auto 2-speed
Replies: 15
Views: 1480

Re: Need a planetary gearset for my auto 2-speed

Ok. you understand. 3:1 (2:1 R/S) is the normal limit. The Xiongda hub uses a differential ratio. Maybe one of the bottom bracket hubs? Good idea! I've just made an inquiry to a dealer of schlumpf bb drives. Maybe they can get the gears only for me. Would be nice as it is a very thin unit (though l...
by Tony01
Nov 13 2015 8:30am
Forum: E-Bike General Discussion
Topic: Disc Brakes and Racks?
Replies: 14
Views: 1473

Re: Disc Brakes and Racks?

What about making a steel bracket that bolts to the outside of the dropout and positions the caliper under the axle? Make a reaction arm that hangs under the chainstay, like a coaster brake setup. Putting the caliper where it is in that pic would make brake pad changes.. And even caliper alignment a...
by Tony01
Nov 13 2015 8:00am
Forum: E-Bike General Discussion
Topic: Need a planetary gearset for my auto 2-speed
Replies: 15
Views: 1480

Re: Need a planetary gearset for my auto 2-speed

I need a source for planetary gears. The links miles posted above are a source, but not for the correct ratios (150% max). I've already sent a request for info/quote to one. Not sure I understand..... You realise the ratios in the Matex literature are for the standard planetary configuration (R/S +...
by Tony01
Nov 13 2015 4:57am
Forum: E-Bike Non-hub Motor Drives
Topic: Hubmotor as a mid-drive
Replies: 8
Views: 1854

Re: Hubmotor as a mid-drive

The v-belt drive will work well. One thing to consider is to build an enclosure for it. Vbelts are prone to slippage when wet and dirty. You can use something like brake cleaner to clean dirty pulleys. After the initial new belt stretch period, a retensioning is all that is needed and you're good to...
by Tony01
Nov 13 2015 4:47am
Forum: E-Bike General Discussion
Topic: Need a planetary gearset for my auto 2-speed
Replies: 15
Views: 1480

Re: Need a planetary gearset for my auto 2-speed

Why not go back to the jack shaft reduction, but with a performance "slipper" clutch on the engine. Race karts use that system for maximum low speed performance and high top speed. Good slipper clutches are compact,dry disc based ,adjustable for slip, lock up rpm, and can handle the heat without fa...