Search found 4994 matches

by MadRhino
Apr 19, 2018 6:35 pm
Forum: E-Bike General Discussion
Topic: Clearance front motor hub and caliper
Replies: 9
Views: 73

Re: Clearance front motor hub and caliper

One solution does fit without the need of any mod: Find a Magura Gustav M front brake.

Another solution is to use a large rotor. A 9 inch or 225 mm disc, and the matching caliper mounting bracket, would space most calipers out of motor rubbing range.
by MadRhino
Apr 18, 2018 6:11 pm
Forum: E-Bike General Discussion
Topic: Looking for people that own E-bikes
Replies: 6
Views: 156

Re: Looking for people that own E-bikes

Ebike cost can be very cheap. We have members on ES who had built their ebike entirely from recycling. They can also be expansive, many of us are riding ebikes that are more ultra light weight motorcycles than bicycles. Nevertheless, the ebike is the cheapest mean of transportation that there is. No...
by MadRhino
Apr 17, 2018 3:53 am
Forum: E-Bike Technical
Topic: freewheel spacing/shifter questions
Replies: 5
Views: 107

Re: freewheel spacing/shifter questions

You could just fit a washer on the axle shoulder to spread the dropout a little. The chain won’t rub anymore and you can ride with your actual freewheel. The washer can be filed to axle shape from a 10mm washer, or you can use a C washer. Or, You could use a 5 spd freewheel, for 5 speed is enough wi...
by MadRhino
Apr 16, 2018 11:58 pm
Forum: E-Bike Technical
Topic: Which mountain bikes are suitable for electrification?
Replies: 5
Views: 146

Re: Which mountain bikes are suitable for electrification?

Your question does miss an essential factor: performance.

Recommendation of a frame, does require to know how much power you’re gonna build on it, and how fast you plan to ride.
by MadRhino
Apr 16, 2018 11:49 pm
Forum: E-Bike Technical
Topic: The ultimate torque arm (For <2kW and standard axles)?
Replies: 77
Views: 977

Re: The ultimate torque arm (For <2kW and standard axles)?

...No matter how powerful the motor is, it can't transmit more torque than it can stick to the ground. Well, torque does kick, even on a wheel that doesn’t touch the ground. When I give it some throttle whilst in a jump, my motor does lift the front of my bike. If I give too much, it can back flip ...
by MadRhino
Apr 16, 2018 11:59 am
Forum: E-Bike General Discussion
Topic: Battery series wiring
Replies: 16
Views: 228

Re: Battery series wiring

Building a battery with cells that are not all the same capacity, C rate and impedance, it will get out of balance every discharge cycle. Its limit will be that of the weakest link, and proper balance charging will take a long time, every time. If you don’t fit a BMS to them, some of the cells are l...
by MadRhino
Apr 16, 2018 6:09 am
Forum: E-Bike General Discussion
Topic: 3.9C cell with 28mΩ resistance?
Replies: 3
Views: 93

Re: 3.9C cell with 28mΩ resistance?

The state of charge and temperature does affect impedance of a cell. Those parameters should be measured equal, to compare 2 cells. Then, both impedance readings that you have measured are within the manufacturers spec Your Samsung cell impedance should be 7 to 16 m/ohm, 28 m/ohm after trip If my me...
by MadRhino
Apr 16, 2018 12:51 am
Forum: E-Bike General Discussion
Topic: Battery series wiring
Replies: 16
Views: 228

Re: Battery series wiring

I don’t know why, and I may be wrong but... I have a doubt that your cells are all the same. I mean, a good battery is made with cells that are all equal and equivalent for type, capacity, impedance, age... And each one tested 2 cycles at least, before assembly. Anyway, wish you success. The assembl...
by MadRhino
Apr 15, 2018 7:58 pm
Forum: E-Bike General Discussion
Topic: rewiring a bionx hub motor after removing the controller
Replies: 2
Views: 74

Re: rewiring a bionx hub motor after removing the controller

Considering that some more powerful motors can be purchased brand new for 100$, I am not sure that an old Bionix is worth the trouble, if it is not going to retain its only valuable quality of torque sensing system.
by MadRhino
Apr 15, 2018 3:39 pm
Forum: E-Bike General Discussion
Topic: Converting bike for Deliveroo coursier
Replies: 6
Views: 120

Re: Converting bike for Deliveroo coursier

Your link is a 500w geared motor. It is suitable for your requirements. 6 bikes? Maybe a few too many... Cutting and welding, making one cargo bike with one of them, maybe using parts of a second, is not so difficult to do yourself if they are steel. :wink: Many of us are into building purpose speci...
by MadRhino
Apr 15, 2018 12:00 pm
Forum: E-Bike General Discussion
Topic: Converting bike for Deliveroo coursier
Replies: 6
Views: 120

Re: Converting bike for Deliveroo coursier

What really works IMO, is the ugly bike. ... Or a cargo bike. Cargo bikes are not attracting thieves, and are easy to build, for battery placement especially. They are also ideal for delivery, leaving the rider free of backback or courrier bag. Building with integrated locks for both, bike and carg...
by MadRhino
Apr 15, 2018 8:06 am
Forum: E-Bike General Discussion
Topic: Canadian Provinces with Helmet Laws
Replies: 3
Views: 65

Re: Canadian Provinces with Helmet Laws

Yep. The problem with the police, is their consciousness of crime importance, is relative to average crime type and rate. In a place where kids are killing each other with guns, riding a bicycle anyhow has no importance. But in a place where nothing happens, mothers pushing baby carts at jogging pac...
by MadRhino
Apr 15, 2018 7:54 am
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

I would only like to switch to motorcycle brake(-pads) because of their durability.. :lol: :pancake: Well, brakes can be a long dicussion, because different riders have very different uses of brakes, very different requirements, and very different expectations. Let’s start with maintenance schedule...
by MadRhino
Apr 15, 2018 1:23 am
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

Luke has a very fast bike, and likely to be heavy too. Anyway, rear brake is not very important. The shorter you brake, the less the rear does matter. Sometimes I brake with the rear off the ground. My front does really good at 60 Mph, but my total riding weight is only 230 lbs. Still, I am not usin...
by MadRhino
Apr 15, 2018 12:18 am
Forum: E-Bike General Discussion
Topic: Canadian Provinces with Helmet Laws
Replies: 3
Views: 65

Re: Canadian Provinces with Helmet Laws

Quebec has no helmet law for bicycles, but recently they started considering ebikes as motorcycles for helmet regulations. The police usually doesn’t apply this rule, but some are zealous, especially with fast bikes. So, I started wearing a helmet more often. I am a bit frustrated but I still feel t...
by MadRhino
Apr 15, 2018 12:06 am
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

Yep, we are all concerned with having good enough modulation to control the rear brake, to avoid locking it. I tried everything on the motorcycle. I even tried grinding down the pads and making them smaller... It is larger pad surface, that is making better modulation. Better lever adjustment optio...
by MadRhino
Apr 14, 2018 9:58 pm
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

efMX Trials Electric Freeride wrote:
Apr 14, 2018 6:49 pm


Hayes with 9" rotors are still available and come stock on motopeds (https://www.motocruzin.com/product/haye ... ace-brakes)
Thanks for the link. I have some that are worn out, and believed I would have to replace them with some others, because they are gone from my supplier’s catalog.
by MadRhino
Apr 14, 2018 9:50 pm
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

I'm with you, but not for the drifting. I too would like bigger rotors and bigger pads. Eventually I think I would like dual front discs and calipers, but that is not an option for the rear. Funny but my concern was always how *not* to lock up my rear wheel when braking :) Yep, we are all concerned...
by MadRhino
Apr 14, 2018 6:20 pm
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

I have never seen really large rotors on bicycles, just 208's. 208 is a very unusual size. 203 is common, I use 225. I see one 225 available at Chain Reaction, then two 205 and the usual 203 with twenty and three 200's. I am going with 203's I purchased from them up front with their adapter. 203 is...
by MadRhino
Apr 14, 2018 4:40 pm
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

I have never seen really large rotors on bicycles, just 208's. 208 is a very unusual size. 203 is common, I use 225. I should have added to my previous post: If you wear pads quickly locking the rear, it has to be because they drag and rub when you are not braking, or you have the habit to hold the...
by MadRhino
Apr 14, 2018 4:19 pm
Forum: E-Bike General Discussion
Topic: Motorcycle-Brakes on eBike?
Replies: 32
Views: 374

Re: Motorcycle-Brakes on eBike?

Locking the rear wheel is not hard on brakes. I don’t see any advantage to motorcycle brakes for that matter.

Stopping a 150lbs bike from 100 mph, you would need motorcycle brakes on the front, but still could go on with bicycle brakes on the rear.
by MadRhino
Apr 14, 2018 12:43 pm
Forum: E-Bike General Discussion
Topic: Man Gets Hit and Run Over at Vigil for Cyclist who was hit an Run and Killed
Replies: 21
Views: 410

Re: Man Gets Hit and Run Over at Vigil for Cyclist who was hit an Run and Killed

Before we got our bike I always told the bike riders they were a lot braver than me, having to ride slower than the flow of traffic is akin to becoming a speed bump here in CA. It is difficult to make the switch from motorcycle to bike. Our Fz-09 would go from a stop to 60mph in under 3 seconds. Ev...
by MadRhino
Apr 14, 2018 6:04 am
Forum: E-Bike General Discussion
Topic: Man Gets Hit and Run Over at Vigil for Cyclist who was hit an Run and Killed
Replies: 21
Views: 410

Re: Man Gets Hit and Run Over at Vigil for Cyclist who was hit an Run and Killed

Yeah! Motorcyclists are the ones that we need to convince first. Riders already, they will soon give up their dirty habits of noise and smoke, when they see the advantages that we benefit.
by MadRhino
Apr 13, 2018 9:00 pm
Forum: E-Bike General Discussion
Topic: Is REGEN, really worth it ?
Replies: 65
Views: 1640

Re: Is REGEN, really worth it ?

Has anyone considered one of these: https://www.amazon.com/s/?ie=UTF8&keywords=drag+chute&tag=googhydr-20&index=aps&hvadid=178101069494&hvpos=1o2&hvnetw=g&hvrand=15154458787076355731&hvpone=&hvptwo=&hvqmt=e&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9029427&hvtargid=kwd-287184388&ref=pd_sl_7bf24ro2zx_e F...