Hey I need some advice on how to complete my bike build any help would be really appreciated!!!!!
schwinn-BIGGITY!!!HUGE-TIRES-A-MUST-SEE......need advice,first time build custom!!!!!
- Thread starter schwinnbiggitycustom
- Start date
Hey I need some advice on how to complete my bike build any help would be really appreciated!!!!!
wheelbender6
Well-Known Member
Just help the guy and maybe we can create a new thread about what we consider "custom". Should be a good thread.
He will need to either offset mount the engine or add a jackshaft for the motor chain to clear that back wheel.
Some engine vendors sell "Stingray Engine Mounts", designed for chopper bicycles, which will offset mount the engine to the left for tire clearance.
Such an engine mount probably will not fit your chubby bike without some mods, but it is a start.
He will need to either offset mount the engine or add a jackshaft for the motor chain to clear that back wheel.
Some engine vendors sell "Stingray Engine Mounts", designed for chopper bicycles, which will offset mount the engine to the left for tire clearance.
Such an engine mount probably will not fit your chubby bike without some mods, but it is a start.
KCvale
In memory of KCvale 1959 - 2019
That's a terrible bike to motorize.
Heck I wouldn't trust that bike stock going downhill with just a coaster brake!
I just finished these two Motorized Fat Tire Shifters and it's all about brakes to stop these beasts.
I suggest you return that virtually useless Schwinn and spring for a 7-speed Sun Crusher if you want a gas Fat Tire.
The dual V's work unusually well and since the best way to motorize a Fat Tire is to tie into the pedal drive, you might as well get a bike with gears.
It's a big strong cavity I'll bet even a 49cc 4-stroke shifter would fit in.
The key again is a jackshaft (shift kit) to move your engines output to the other side and then replacing the pedal system with a Freewheel mounted pedal system.
Your pedals are like a socket wrench handle...
You can turn the socket with the wrench but you can also turn the socket with your fingers and the wrench just ratchets.
The engine output sprocket is your fingers in that example.
Not what you wanted to hear I'm sure but I know of what I speak, that Schwinn will only bring you misery if you try to put that engine in it.
Heck I wouldn't trust that bike stock going downhill with just a coaster brake!
I just finished these two Motorized Fat Tire Shifters and it's all about brakes to stop these beasts.
I suggest you return that virtually useless Schwinn and spring for a 7-speed Sun Crusher if you want a gas Fat Tire.
The dual V's work unusually well and since the best way to motorize a Fat Tire is to tie into the pedal drive, you might as well get a bike with gears.
It's a big strong cavity I'll bet even a 49cc 4-stroke shifter would fit in.
The key again is a jackshaft (shift kit) to move your engines output to the other side and then replacing the pedal system with a Freewheel mounted pedal system.
Your pedals are like a socket wrench handle...
You can turn the socket with the wrench but you can also turn the socket with your fingers and the wrench just ratchets.
The engine output sprocket is your fingers in that example.
Not what you wanted to hear I'm sure but I know of what I speak, that Schwinn will only bring you misery if you try to put that engine in it.
wheelbender6
Well-Known Member
This company uses a shift kit also to motorize the fat tire bikes.
https://www.bicyclemotorworks.com/
https://www.bicyclemotorworks.com/
KCvale
In memory of KCvale 1959 - 2019
Yep, that's the 7-speed Mongoose Dolomite with dual disc brakes.
I went electric on mine but it's tied to the pedal sprockets.
It looks like a 2-stroke will fit in there if you reverse the head and use a Z intake.
The point is both bikes have good brakes and the Dolomite is just not that expensive, like $250.
Note on the Dolomite, the stock seat is a tiny uncomfortable POS that needs replacing and the Gel seat I used on my mine works well.
steveanson
New Member
I agree with your response Schwinn, if anyone doesn't want to be friendly and helpful, why even post? Coming on strong with an 'uppity' attitude only shows one's donkey...S
Fabian
Well-Known Member
I really like the Fat Bike concept, allowing you to run low tyre pressures for a very comfortable ride.
In my opinion, comfort is the most important aspect of the bicycling experience, because if you have to endure a horribly uncomfortable ride, you will never want to do long distance touring.
In my opinion, comfort is the most important aspect of the bicycling experience, because if you have to endure a horribly uncomfortable ride, you will never want to do long distance touring.
KCvale
In memory of KCvale 1959 - 2019
Looks like Bigity gave up on this build or the forum as it's been a couple of months and he hasn't been back.
The fat tires rock in sand, snow and mud, uoi run them at 8psi, but for road riding 20-25psi is comfortable even over speed bumps but not as much drag.
steveanson
New Member
KC, Do you sell those cool cylinder gas tanks? I too would love to mount one on a rear tire rack. Thanks, Steve
KCvale
In memory of KCvale 1959 - 2019
Naw, I am not a vendor, I am a custom builder.
steveanson
New Member
Is your bike frame a Schwinn or a Mongoose? I've checked around, and unless you weld your own engine offsets to the frame, nobody carries an offset to clear those tires from the engine sprocked side, without mods. I say, just put a jackshaft on it, and run a right side chain. Once you had that ironed out, you could add a seven speed rear setup...Steve
Similar threads
