Building a 4-stroke bicycle

[GodMan]

So just more torque?

 

[Wyvern]

So just more torque?

Yep, 79/100cc is still modest, once you get into 160's and bigger you have almost too much torque for a bicycle.

 

[GodMan]

Okay. Thanks for the clarification.

You would not get any speed increases right?

 

[Sidewinder Jerry]

Okay. Thanks for the clarification.

You would not get any speed increases right?

Unless you increase rpm you can only drop the total reduction so low. More torque means you can increase the weight that's being carried. It still isn't going to go any faster. If you use gears the top level ground speed won't increase but the average speed will increase. This is because at full throttle the engine can run at max hp rpm regardless of the terrain.

 

[GodMan]

Gentlemen. I would like to bump my output sprocket up to a 12T.

I have the 20T/100T 4g transmission.

Here is a picture of the extra output sprocket that came with the kit.

Can someone point me to where I can get the correct 12T output sprocket.

 

[Sidewinder Jerry]

Gentlemen. I would like to bump my output sprocket up to a 12T.

I have the 20T/100T 4g transmission.

Here is a picture of the extra output sprocket that came with the kit.

View attachment 211934
Can someone point me to where I can get the correct 12T output sprocket.

Staton Inc

Staton-Inc a world class manufacturer of motorized wheelbarrows, motorized bicycles, bike engine kits, gear drive kits since 1984.

www.staton-inc.com

 

[GodMan]

I know their website, but I was not sure of the correct size I have.

Just don't want to buy the wrong item.

 

[Chainlube]

I know their website, but I was not sure of the correct size I have.

Just don't want to buy the wrong item.

What's the matter with the 10? A 12 will be slower out of the hole.

 

[GodMan]

Won't bump up to a 11T or 12T, bump up your overall speed?

 

[DAMIEN1307]

What's the matter with the 10? A 12 will be slower out of the hole.

Won't bump up to a 11T or 12T, bump up your overall speed?

When I look at the pic of the front, drive sprocket that the OP provided, it is not a 10T...it is a 9T sprocket which makes me question that whole setup on his sprockets right now.