r/motorizedbicycles

how does it look?

Gas tank's cap leak

How do you guys deal with always leaking fuel through the cap? All my builds are with four liter gas tanks and i want to use the full capacity, but on a bad road or on off-road all i get is two stroke fuel all over the tank and knees.

reddit.com
u/Dry-Turnover5416 — 10 hours ago

My 1956 Schwinn Phantom/Panther

This is my most recent build. It is a 1956 schwinn phantom frame with panther parts of a similar year. Currently it does about 25mph due to the 44 tooth sprocket, but after I get a 36 tooth sprocket it should be a little higher. Rides like a total brick, but it sure is a looker with the patina chrome fenders and faded paint.

u/1966_GT40_MkIV — 1 day ago

New shoes after 1 1/2 years!

Ole Huffy Davidson has been doing the work commute every weekday since spring of last year on a warped, rusty back wheel, which was just bad enough that I didn’t want to run a rear brake.
Wore a cheap mtb front down to the cords in just a few short months as a result, and right on time a donor bike turned up yesterday with these wide rims and 2.125” tires that just happened to fit perfectly.
After riding to work and back today the thing that struck me the most was how I’ve never felt like I had to countersteer a bicycle before, the shape of those tires made this feel like a whole different bike! 😁

u/Cauvinus — 2 days ago

New fork and handlebars. The Interceptor is one step closer to being built

Handlebars are upside down but that gives it the low slung look I’m going for, this is going to be one badass little cafe racer.

u/rmannyconda78 — 2 days ago

Disc brakes? Need a visual aid

Hello everyone! I'm looking into disc breaks but I'm having a hard time envisioning how to get my sprocket onto the hub without interfereing with the disc brake? I tried looking for tutorials online and came up pretty empty handed, anyone have any photos of their set up I could take a look at? I assume you need a spacer but I just want to confirm

reddit.com
u/Brilliant_Work_6005 — 2 days ago

Thoughts before I waste my money?

So I've decided to swap my front forks with these do we think it'll fit? Or should I keep searching?

To me eyeballing it I say go for it, it is going to cost me a whole $20 bill lol

u/Brilliant_Work_6005 — 2 days ago
▲ 4 r/motorizedbicycles+1 crossposts

Phantom 85 airleak

All of a sudden an airleak has formed, to the point where half choke is needed, this was sudden. Exhaust and reeds and carb are tight
Crank case is tight
Headbolts are tight, anyone know where it could be from?

reddit.com
u/Ok_Mark9550 — 2 days ago

Electrical diagram

So I have my headlight, headlight switch, brake lever with brake light wiring, brake light(with turn signals integrated) and a rechargeable 12v battery. I'm new to this stuff in general, I've only made one build. But does anyone have a diagram that can help me splice this all together? I'll have to get this thing legal to ride it in Texas. Thanks for any help. I'll be sure to post it when done.

reddit.com
u/austinmadepunk — 2 days ago
▲ 5 r/motorizedbicycles+1 crossposts

In search of a 168mm brake disc with 3 mounting holes

I am building my own 4 wheeled electric scooter, inspired by, and using parts from, the Citycoco. Having found the front suspension and matching brake pumps, I have a problem between the brake disc and the in-wheel motor. I can find brake discs with 6 mounting holes, but the motor has only 3 holes for mounting.

Having searched and come up empty handed, I can only ask if anyone know of a 168mm disc brake with 3 mounting holes. It would really save my build.

u/Sufficient-Lobster62 — 3 days ago

Whats causing my clutch to lock up? I did a clutch dump like ive dine before and my clutch locked up. I removed the pressure plate and its still engaging/ binding, any help?

u/Exciting_Crow160 — 3 days ago

Riding in the rain....

I rode in a heavy rain yesterday. My engine(phantom 85 stock), would die when I pulled in the clutch to neutral. Right after noticing that, the rear wheel jammed up. I inspected the chain and the clutch sprocket and it looked fine.

Did the rain cause this? Is riding in the rain a bad idea? How are you guys riding in the rain without issues?

reddit.com
u/Wild_Will7085 — 3 days ago

Hey guys is there backing plate hardware adapters that alow for mounting disk brakes?

I cant find what im looking for, I know there's easier ways to probably do this, but im trying not to spend to much money rn cause I don't have a job. And need to keep my budget prety low.

u/GuaranteePerfect5584 — 4 days ago

Brand new engine started but won't start again.

I took the engine out of the box and put it on my bike it started then it slowly took me around my apartment complex. And when I pulled the clutch in it died, and would not turn over at all. It does not pop at all anymore.I have a bright spark and there is no air leak.Any possible help would be greatly appreciated.

reddit.com
u/EmployerNo1068 — 4 days ago

Bike has loss of power and only goes 21mph when it was going 30mph its a 49cc 4 stroke

It just randomly started loosing power but gain some of it back right before running out of gas

reddit.com
u/Senpai_Nusty — 3 days ago

My bike won’t go when I full throttle

Okay so I recently built my bike like 3 weeks ago and it’s been working good but at one point the throttle stopped moving the chain and my bike wouldn’t go without me paddling it.

Few things to note:
- My throttle works I see it in the carburetor moving up and down.

- my sprocket is loose I just need to tighten it up my guess is it got loose with ridding

- my engine had popping noises the day before and it happened right after my bike fell on its side but it still rode fine it had popping noises tho I am thinking that it’s my engine misfiring but not sure

That’s it feel free to ask me questions I will answer them with my best of ability and thank you for your help.

reddit.com
u/Gamer_Guy590 — 3 days ago

Bought a BBR motor from Roco-parts.com

Hello!
I bought a BBR motor from Roco-parts.com for my project and now reading a little bit more about the BBR company as a whole I think i might have made a mistake.

I bought it for 170€ (shipping included) and was wondering if anyone else has had any experience with it. On the BBR website it is more expensive (about 220 + shipping) and they dont even ship to Latvia.

On the BBR website it is the BBR Tuning Racing Series Stage 4 66/80cc 2-Stroke Engine Kit.

Would appreciate some thoughts on it or if someone has some experience on the specific engine, then it would be great to read a comment ab it.

reddit.com
u/SuperBat033 — 4 days ago

Motorized bicycle suggestions

Bought one Phatmoto bike and it has been nothing but trouble from ordering, sales, communication, parts not delivered to damaged parts,etc…
I am not wanting to speed $$$$ but something that doesn’t require constant maintenance. I’ve looked at BikeBerry.

Any suggestions would be appreciated.

reddit.com
u/Amazing_Two_4793 — 4 days ago