Block layer good gear ratio calculator?
- Thread starter TheSignGuy
- Start date
If you ask me, NO CLUTCH will work if set up on the jackshaft.
Why?
Think about it. Rpms are LOST when you lower the gear ratio. If you have a 3" crank pulley and a 6" pulley on the jackshaft, that's a 2:1 gear reduction.
If your clutch engages at 1600rpm at the crank,
the jackshaft pulley is spinning at 800rpm.
That means if the clutch fully engages at 2,000rpm, the engine would need to spin 4,000rpm for the clutch at the jackshaft to engage at 2,000rpm.
Why?
Think about it. Rpms are LOST when you lower the gear ratio. If you have a 3" crank pulley and a 6" pulley on the jackshaft, that's a 2:1 gear reduction.
If your clutch engages at 1600rpm at the crank,
the jackshaft pulley is spinning at 800rpm.
That means if the clutch fully engages at 2,000rpm, the engine would need to spin 4,000rpm for the clutch at the jackshaft to engage at 2,000rpm.
Which is why I don't reduce but matching it means you fall off...
In this type of build, sounds more functional to use a clutch in a racing matter as top speed is a concern...
It's going to burnout either way but flat lands my territory as I have quoted "I do not mind pedaling..."
A whole month with no clutch failure yet.... I'm not dying to go up hills I'll torque that by feet.
Flat land I just want to zoom across perfect trade off without pissing the law off but I will beef it up for torque
I've checked specs of the clutch in particular this engages 1800....
Tambourine sounds still got to stop even if it's still geared wrong as long as it stops ID pedal to get to secondary gear to carry to 45.
With a new throttle I finished I already have control on meeting it's needs of course it's not going to peel out but still get there and keep speed.
If carbon wheels came with 36 spokes ID sheave that b too!.
3" to 5" would of worked some were around 1.6 to one, been done before on cheaper clutches to help the burn. Ordinal stated 4 or 5" to drop the ratio.
5" clutch pulley will not work on the clutch without jack shaft reduction, you are already geared to high, now you want to go higher
5" clutch pulley will not work on the clutch without jack shaft reduction, you are already geared to high, now you want to go higher
Yes well let me offer this as a rebuttal.
"**** that wheel set and that got damn sheave...."
Tear that ***** off I need a freewheel set with a double sprocket.
One side locked in fixie that will fix it..
I'm about to go ape **** redneck
Bicycle big sprocket front and small sprocket in the back...
Correct ratio log that and hold my beer.
I'm not old but you've been through some **** in life as well so by that face I take it you understand where I'm coming from......I have absolutely no idea what you just said
27 y/o and stressed the heck out.
Nothing against anyone or the bike I just lack care at least I'm within law confines the police drive 60 past me to get to someone in front of me...
So apparently I'm OK enough..
I
I feel for you.
I like it when people are happy and not hurting anyone else.
Believe it or not, we're just trying to help you fix your bike, so you can be happy.
Ok.
It'll be hard for me, but I'll just kick back and listen and enjoy how you'll build your bike.
From what you've described, your life must suck.
I feel for you.
I like it when people are happy and not hurting anyone else.
Believe it or not, we're just trying to help you fix your bike, so you can be happy.
Ok.
It'll be hard for me, but I'll just kick back and listen and enjoy how you'll build your bike.
MY life is more like Gladys Knight's
"Best Thing That Ever Happened To Me".
and I am truly grateful
I think one of my best breaks in life was not having any of my 3 kids until I was 29 years old.
