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Custom Bicycle

Tozguy

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#61
These bicycle people really have their engineering down pat.

https://www.brompton.com

I love mine. The bike is the fastest of the stationary bike category. :)

But nobody is perfect, they don't spell 'tire' properly.
 

richl

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#62
You will never gain acceptance in the main stream bicycling crowd doing something outside the accepted norms. Less weight is always going to be the issue for them. They will never understand someone building something "custom" or "cool". They do not understand the ratrod concept, nor the need to build something to be creative. For them it needs to be 11lbs. 50 -100 lbs is far beyond what they are comfortable with and understand.

Now on the other hand, I make bicycles that resemble motor bikes, there are a few custom Harley shops only a few blocks from me... try explaing to a hard core Harley guy the frame you are bending up with the Springer forks, single swing arm rear axle, tall handle bars, bobber seat position, will not have a motor, and will be peddled around vbg, lol

I have many more

Rich

Btw, this is a nice thread, you brought a nice perspective to the custom bike design and approach. Kudos for that!
 

rwm

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#63
Thank you Rich. The thing that really distressed me was the concept that only aluminum is "alloy"! Let's just throw away the dictionary and wing it!
It took a while but I got the bracket for the caliper in the right place and mounted the brakes.



I know, the welds are not that pretty. The welding was hard with the thin wall tubing and difficulty in positioning the large bulky frame. The brake works great though.
It has a trunk also (boot for the international audience)


Ready for disassembly and paint! I will post some final pics after that.
Robert
 
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rwm

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#66
Thinking about another one. This one electric. Modeled after a cafe racer. Kind of like this:



Robert
 

richl

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#68
Nice tank, did you make that?
Bike is looking good! What watt motor did you go with? 1500, 1000, 750???
How many batteries?

Rich
 

rwm

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#69
I cannot take credit for the tank/frame. It was only $120 out of China. I can't even source the material for that price! I will be making a battery box in the same style. I went with a 48 volt 1000 watt system. The battery is 10 AH. I took it on a little test drive, hence the duct tape and bungee. It is too fast!
Robert
 

rwm

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#70
Had to make the bottom bracket to fit the 2" hole in the frame. I am making my own spindle like the FTB:

bb1.jpg bb2.jpg

The bearings are ceramic. I will silver solder or weld on the taper ends.

Robert


 

richl

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#71
Interesting, usually they screw on, I'm curious how it will hold up. You might consider broaching a slot in order to pin the pedal to your axle.

Really like the way you are thinking outside the norms with your builds.

Rich
 

rwm

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#72
Thanks Rich.
I plan to use perforated metal for a grill but it is stupid expensive. Anyone got a good source for a small amount. Would it be stupid to try to make my own with a drill?
Robert
 

richl

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#73
I if you have some type of xy table you should do fine. Else, just measure very carefully:D

At lowes, in the section of the store where they have angle iron, steel, threaded rod and such, they have aluminium sheets, sheetmetal and perforated panels of different types. You might find something there that suits you.

Hth
Rich
 

rwm

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#74
I will check Lowes! If not, I have a small piece of perforated aluminum that I can use as a drill guide. That should make it go a lot faster. I figure its about 100 holes. At 10 sec per hole that is 16 minutes. Lets say 30 min to be conservative.
Robert
 

Tozguy

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#75
There might be something in the cooking or BBQ sections made from perforated stainless or aluminum, pizza platters and such, worth a look maybe.
 

rwm

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#76
Lowe's did not have what I wanted to use so...
I drilled a bunch of holes.



I made this box out of 1/4" aluminum. Good welding practice.











I think it looks Badass!
Robert
 

dlane

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#77
Nice , so how many speeds will it have , seems the seat has air conditioning :cool:
 

rwm

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#78
7 speeds on the rear cassette. I don't plan on pedaling much! Hope to be up and running this weekend.
Robert
 

dlane

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#80
Maybe I'm missing something but Is the motor in the back hub, if so where do they come from?.
 

wrmiller

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#81
Yes it's in the rear hub. BLDC. I've seen them on various websites, but at the moment can't recall a specific one. Google should work.
 

richl

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#82
Ebay is a Good source, front and rear applications. Do a search for front or rear wheel electric kits, youll get lots of hits. The full kits are nice unless you have a source for all the different components.

Rich
 

dlane

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#83
Wow didn't know there were so many kits out there like that, can even get a two wheel drive bike.
BLDC ? , 48v 1000w how far would that get you or run time
Interesting
 

richl

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#84
I think the range varies to the amount of batteries you use and the type, somewhere in the 30-50 mile range is about right though.
 

mzayd3

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#90
Nice ride! I recently upgraded a Razor MX500 to 48 volts. Stuck a bicycle spedometer on it, got it up to about 25 mph. I never thought of making one with a gear train...

You are a source of inspiration!


Sent from my iPhone using Tapatalk
 
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