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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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Old 04-04-2009, 06:59 PM
hawaiioutdoors hawaiioutdoors is offline
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Join Date: Jun 2008
Posts: 14
Default Heavy Duty Wheel Tip.

With the bicycles going faster, both gas and electric. The Bicycle parts used must be up to the challenge. I had a cutom rear wheel made up to take the abuse of a GEBE. Usually the spokes start breaking. But this tip can be used on any motorized bicycle.
I used a ebay as a source of parts.
I purchased a excel 21x1.6 inch front dirtbike rim... This is equal to a 26 inch mountain bike rim.
I purchased a heavy duty down-hill mtb hub.
I sent everything off to "The WheelMaster" The Wheel Master
who laced it up with 8 guage stainless spokes...He has 9 and 10 availabe...just the holes in my rim was too large to fit those.
There might be other great wheelsmiths out there, but he did good by me.
I had the wheel offset so that the GEBE ring would clear the 2.75 inch
[COLOR="Red"]DOT motorcycle tire that I will use. 2.5 inch tires are available.
This will hopefully keep me from getting flats, or bursting at speed.
I purchased the Michelin bias-ply Trial tire..l. not trail tire...

Last edited by hawaiioutdoors; 04-04-2009 at 07:02 PM. Reason: color code showing up in type
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Old 04-05-2009, 08:16 PM
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Cabinfever1977 Cabinfever1977 is offline
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Join Date: Mar 2009
Location: Upstate,NY
Posts: 2,290
Default re: Motorized Bicycle Take a Tip...Leave a Tip

the lower gauge spokes are bigger and heavier by the way
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Old 04-06-2009, 10:05 PM
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Earthman Earthman is offline
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Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 82
Default Re: take a tip...leave a tip...or a bunch of 'em

Originally Posted by Bikeguy Joe View Post
These engines were originally made to haul around people for a tiny sip of fuel, low operating costs, and ease of MAINTENANCE....kinda like the old V-Dub beetle. Or the early Honda step through. Or the model T.
I'm not so sure what these engines were originally made for. Yesterday I found the "Small Gasoline Engine User's Manual" that came with my engine in the bottom of the shipping box under a piece of Styrofoam. The manual says my engine was made for a "brush cutter!" There are photos of it attached to some sort of rusty farm implement with cast iron wheels that looks like it used to be drawn by a large domesticated beast. The shiny new engine, chrome muffler and motorcycle gas tank bolted to the thing really looks funny (see photos). Did I join the wrong forum?

Tips from the manual:

"Never attempt to make engine adjustments while unit is running and strapped to the operator."

"Do not use this unit for any job other than those for which it is intended as described in this manual."

"Know how to unhook a harnessed unit quickly."

"Do not rely on debris shield on the unit to protect your eyes from ricocheting or thrown objects."
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Old 04-06-2009, 10:29 PM
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mechanickid mechanickid is offline
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Join Date: Aug 2008
Location: nh
Posts: 419
Default re: Motorized Bicycle Take a Tip...Leave a Tip

wow Long&Black, you have officially convinced me to wear a helmet. i do all sorts of extreme sports without them and i've been pretty indestructible so far, but now for mb-ing i think i'll change my rash youthful ways.
its only too fast if you cant stay on!
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Old 04-07-2009, 11:47 AM
saulgood saulgood is offline
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Join Date: Dec 2008
Location: northern california
Posts: 3
Default re: Motorized Bicycle Take a Tip...Leave a Tip

kickstand tip:
Parking a motorized bike in public will definitely draw a lot of attention, but take it from me; nothing ruins a "james Bond" entrance like having your ride crash to the ground as you're walking away.
I got rid of my old steel kickstand (it was too short anyway) and bought an aluminum "two legger" that mounts in the same place (couldn't tell you the brand but it's shaped like an upside down "Y"). My bike store had it laying around for about 20 bucks. It weighs about the same as the old one did, maybe even less, and the bike stands up straight when parked so it takes up less space.
The best thing about it though is that it holds the back wheel just off the ground which makes it a great work stand for adjusting the drive train.
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Old 04-11-2009, 05:31 AM
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commander commander is offline
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Join Date: Mar 2009
Location: penn state
Posts: 205
Default re: Motorized Bicycle Take a Tip...Leave a Tip

got one of those kickstands myself Saul, for exactly the same reason. there well worth the extra dollar to add these to your bike. Plus they look very nice on a finished bike.

for those of you that like to know how many hours and RPM's your little bugger runs , here is a very good tach to add to your build

Tiny-Tach: Gasoline Tachometers
For when it is to rainy and cold outside to play with my bike .
I go here
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Old 04-15-2009, 08:07 AM
midatlanticcycle midatlanticcycle is offline
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Join Date: Apr 2009
Location: leola, pa.
Posts: 16
Default re: Motorized Bicycle Take a Tip...Leave a Tip

joe: thanks for the good read. i know it took you time to post that and a whole lot of great info. and advice in there. thanks again......john
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Old 04-20-2009, 03:09 AM
Norty Norm Norty Norm is offline
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Join Date: Feb 2009
Location: Wollongong
Posts: 7
Default re: Motorized Bicycle Take a Tip...Leave a Tip

Any clutch lever - just keep spares - mine is totalled but it works - it's in can't sell it green
If it ain't broke - don't fix it!
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Old 05-08-2009, 01:07 PM
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OzzyU812 OzzyU812 is offline
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Join Date: May 2008
Location: "the bog" NH
Posts: 258
Default re: Motorized Bicycle Take a Tip...Leave a Tip

I saw somewhere, (I believe it was this thread, did search with no luck), to cut a slit in the cable stop for easy removal. Well, DON'T do that! Mine broke opposite the slit. Bike is down for a $1 item! I did rig it with with the caliper brake stop. IDK If that will hold up LOL

Problem #5 at 50 miles LOL!

Dan - you owe me an "I told you so." LOL
Building 2nd kit in 6 years. Cheez this time. 1st one was a DAX.

Last edited by OzzyU812; 05-08-2009 at 01:23 PM.
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Old 05-09-2009, 11:07 AM
Large Filipino Large Filipino is offline
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Join Date: Jul 2008
Location: Northglenn,Colorado
Posts: 656
Default re: Motorized Bicycle Take a Tip...Leave a Tip

So my kill switch cable on my lawnmower snapped and I've been rigging that lever thing with vise grips so I can cut my lawn. I decided I would get a replacement and after searching and searching
I found one that would order one for me for 30 bucks.
Sears had a few in stock but they wouldn't sell it to me. They wouldn't even let me match up
my old part because it's not a Sears lawnmower grrrr.
Way too steep anyway so I fixed mine with stuff I had laying around.
My only expense was that 45 cent cable holder I picked up at Lowes.
It will hold down brake cables if you wedge a small bolt in the opening.
Think of all the possibilities here when it comes to temporary or permanent fixes.
I posted the other lawnmower pics to show you guys what I did.
Cable holder is the 1st pic.
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You have found the fountain of youth. Ride and forever stay young.
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