MR Motorcycles Waeranga Ride

[Ride it till the red]

Interesting thread guys.

RITTR I think you and IIIRII are both saying the same thing differently. If the gearing is the same, then is the load on the countershaft the same too? I'd say yes.

If I add an extra tooth on the front sprocket then I'm pushing more chain around per rotation. The chain connects to our load, the rear wheel as we all know. If the chain is now moving faster than standard due to an extra tooth on the front then we're presenting more load to the motor for a given RPM compared to the standard ratio's at the same RPM. So basically the rear wheel turns further for the same RPM. This is all good assuming the motor has the torque to pull it off.

Yeah mate we all agree on your main paragraph, but I agree with your first sentence where as he does not.
He's saying that there is a difference depending on whether you make the gearing change at the rear or the front. I'm very interested to try and understand how and why although it's just not coming to me currently.

Its called a mechanical advantage,
Ill try one more analogy
Option 1 I have an electric motor with a 50mm pulley on it and a benchsaw which has lets say 200mm diameter.
Option 2 I have an electric motor with a 100mm pulley on it and a 150 (or whatever, but the same ratio) on the saw.

I turn the electric motor on ....(same hp motor on both options)
Which option will initially move the saw blade quicker ....?

Might have to call it quits on this one mate, don't seem to be getting anywhere and we're just confusing others too haha

I see what your saying but just don't think it would make a difference, would be interested to see it in practise tho. Might be a little over my head on the applied physics side of things.

Cheers anyway, good reason to spend more time playing with the bike i guess!

[westie]

Not sure about the fancy calculations but.
Smaller front sprcket and or bigger rear = more wheelies
Larger front sprocket and or smaller rear = more top speed

[telliman]

just go ride a mointain bike, you;ll figure it out!

[Jinxycat]

just go ride a mointain bike, you;ll figure it out!

simple advice but very true

[scott411]

from the herald today

http://www.nzherald.co.nz/nz/news/ar...ectid=10627480

not to bad for the herald, was expecting something way more dramtised than it was, was a couple of pics in the paper today, showed the track went the other way, but only one mistake from the herald, which is better than most