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[mpdaniels]

Hi everyone,
I have bought two bikes to which I plan to add mid drive motors. I have already bought the mid drives from Luna Cycles. One of the bikes is an old Townie 21 and the second is an Electra GhostRider. As a newcomer to this forum and someone who is doing his first conversion, I will have a lot of questions starting with how to modify the brakes. I want to add disk brakes to the Townie. Has anyone done that and if so, do you think it is practical to do so. With the Ghostrider, it is a separate issue as it has coaster brakes. Same question here, "has anyone changed the brakes on a Ghostrider?
Thanks,

[73Eldo]

What type of riding you plan to do and what brakes are on those bikes now? As long as its not the old school road caliper type I think you will be fine for fair weather riding you would expect on those types of bikes. As long as they are cantilever, U, V, or similar just get some decent new pads and I don't think you will have a problem.

I was recently looking into converting the brakes on an old bike and came to the conclusion it was just not a good idea. It made even less sense than sticking the $1300 kit on it in the first place which was also questionable. If you did it and the pretty cheap looking brackets actually fit reasonably well and don't fail will the frame and fork hold up? Remember these were not at all designed to have those forces on them. You also need to factor in that unless you can build your own wheels that you are looking at a complete replacement wheel set. Even the cheap wheels are going to be in the $75 range then do you need tires? Will your existing derailleur and such work with the new wheels or are you going to have to upgrade there too? Thats a lot to invest and ask of an older bike design. My build I plan to ride in the snow and ice so I thought disc was important so I decided to just find an inexpensive bike that already had disc which ended up being a new Schwinn from Wally World since there were pretty much zero lower to mid range disc bikes on the used market in my area. If it was just a fair weather mostly pavement cruiser then I would have stuck with the antique with cantiliver brakes and I think been just fine.

[Retrorockit]

If the Townie has the suspension fork adding disc brakes should be fairly easy. Either install a disc brake hub, or get a disc wheel.
I like cable brakes, and Avid BB7 has stood the test of time. A BBSxx mid drive makes a fast bike. 200mm rotors are not too big. I like EBC metallic pads for hard riding. They don't need frequent adjustment. W/O the suspension fork, a Sturmey Archer drum brake can be installed to avoid buying a fork.
SA makes a variety of rear hubs with coaster and drum brake options.An e bike can probably cook a coaster brake due to lack of cooling, and grease inside the brake.

https://www.sturmey-archer.com/en/products/rear-hubs

[Jodiebest]

Hi everyone,a quick thanks to the administration for letting me join. I am a retired textile engineer now living in Skegness Uk. A couple of years ago I brought a Chinese 20 inch wheel front hub kit 36 v 500 watt motor which I have installed on a bmx with a detachable side hack.The project has sat there for one reason or another until this Christmas when the wife brought me two majors drill sets which included four 5ah batteries which I fitted into a 3D printed housing which I purchased from eBay a while ago. The fitting went quite well and neat and tidy but the problem I have is that when I switch it on and turn the pedal the motor turns with the wheel ( obviously) while turning the throttle at full speed only. So there is no throttle control and to stop it I have to either brake or turn it off at the key can any one help me sought this out . Many Thanks

[paxtana]

Have you tried wiring in a different throttle?

[Jodiebest]

Hi thanks for your quick response,I think that might be my next move really. I suppose with the kit parts being like old new parts , the throttle twist grip has still got the sellophane cover on it but it could have been defective from new. I didn’t know if I had wired it up wrong or if possibly there is a way to check the throttle while it’s on the bike maybe ?

[Tommycat]

Hi Jodiebest,

This thread should tell you everything you would want to know about testing a hall sensored throttle...

https://electricbike.com/forum/forum/kits/golden-motor-magic-pie/70584-guide-to-hall-sensor-throttle-operation-testing-and-modification

[SUR-gary]

hi, newbie here . just ordered Sur-ron X. my first e-bike. suppose to arrive next month?

[modog]

Newbie hello from LA. This is my 3rd ebike

[FatRocket]

Talk about the Luna bikes...
Always wanted a 5inch wide tire on a bike just so I can pedal it at the local beach and impress the ladies with my new ride.
I built bikes in the 80's when Specialized was just a parts maker.
Now my Pedal bike from Luna is a 1000w Luna motorized Beast!
Cruising all over the trails 10-20miles an hour like flying in the air!
The next thing is a second battery in my Backpack so I will have enough power for a 50-60 mile bike ride anywhere there is a unused trail.
Luna Galaxy 26" x4.80 Tires
Luna 1000w Motor
52v 20ah Battery.

[paxtana]

Nice build..

[DaveK]

Hi, I am new here... obviously!
I joined to learn about converting a bike into an E-Bike. I bought a BBSHD kit from Luna a few months ago, and have been waiting for batteries to come in stock for MONTHS so I can put the kit together and onto my bike.

[Mike_V]

You may want to call Luna on the phone to speak with an employee and hear a current status about their projects on a more personal basis.

[DaveK]

Thanks, I will.

[Fatchrisfbm]

New to ebikes. Just installed the bbshd Luna kit.

[Fatchrisfbm]

https://www.amazon.com/gp/product/B07957SV7X/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

[paxtana]

What size/year is that frame?

[Fatchrisfbm]

It is a large and maybe 2009-2010.

[Ebike CNX]

New member here..from Seattle area and Chiangmai Thailand (CNX). Currently riding my Sur Ron X in Thailand. Made a solar charging station to make it even more economical. Also riding Talaria now and pedal assist Ryde Culture bike.

[Rob441986]

Totally new here but I'm in need of some input im on my 2nd bike 48v 1500w that somehow broke a phase wire at the hub so I ripped into it rewired the whole thing but somehow managed to leave an Allen wrench in it went to test and now the wheel just vibrates for a second and stops and seems to want go backwards am i totally SOL?... any thoughts??

[Rob441986]

Pantanal could a break in the copper spooling on the motor be the problem and the kill shot for the motor

[paxtana]

No, then it would be dead shorting every time you put power through it. That might explain a delay if it was just partially shorting on the windings but would not cause it to go backwards, so it is just not a likely explanation.

On the other hand getting the phase wiring wrong could easily cause it to go backwards. I would open it up and double check that the phase wires that were rewired correspond to how they would have been originally.

[Rob441986]

Thank u for ur input makes me feel a bit better ill take a good look at it all tomorrow =)

[Jon E B Good]

Hi everyone from Ireland. Cycling most of my life covid really messed up my weight and finding it hard to get back to cycling to work and really want to get back in shape 120kg is not a good way to be so going to repurpose my trusty Giant Fathom 2017. I know the bottom bracket is non-Bafang standard but hope that some of the custom builders might be able to help me find the adaptors. Looking forward to the build and sharing it here with you all.

[Rick8162jr]

M600 silent gear installed now no power will not power up I think it's the motorre disassemble and reassemble went good , I must of done something wrong any ideas guys I'm new to ebike. Thank you

[73Eldo]

Posting the same question in 7 different threads is a bit excessive and just makes a mess out of the forum now and for future reference. We get that you are new and maybe first posted in what may not have been the ideal section and then found what seems like a more appropriate section but 7 is nuts.

Having that many duplicate posts is going to turn people off from wanting to respond and be really frustrating for future users that have this issue and are searching for an answer, they may find 6 of them with no answer and miss the one where there was maybe a solution.