Thinking of upgrading HS 4 transmission

[Deleted member 25783]

Even though the BikeBerry trans. has served me well but. After I finish my Sportsman Flyer 80, my Huffy is getting a 4G.
One thing about the BBR trans. is it gets pretty warm after a twenty mile ride.
I am expecting the 4G to run cooler and quieter. Wish someone would develop a belt final drive. That would have many advantages.
Tom from Rubicon

 

[KCvale]

Wish someone would develop a belt final drive.
That would have many advantages.

Well, you can size a chain, you can't size a belt and I did so much cutting I bought the right tools for breaking chain and cutting cables.

The 4G comes in flavors, 20T to an 80t 4:1 reduction for more speed direct drive, for my shifters I use 20T to a 100T freewheel for 5:1 reduction and gearing does the rest.


I

 

[ezrider]

Well, you can size a chain, you can't size a belt and I did so much cutting I bought the right tools for breaking chain and cutting cables.

The 4G comes in flavors, 20T to an 80t 4:1 reduction for more speed direct drive, for my shifters I use 20T to a 100T freewheel for 5:1 reduction and gearing does the rest.

I

Just where do you get these kinds of transmission shifters ??

_

 

[Deleted member 25783]

Well, you can size a chain, you can't size a belt and I did so much cutting I bought the right tools for breaking chain and cutting cables.

The 4G comes in flavors, 20T to an 80t 4:1 reduction for more speed direct drive, for my shifters I use 20T to a 100T freewheel for 5:1 reduction and gearing does the rest.


I am acquiring chain breakers too, and one I am going to reproduce from 4140 prehard.
But.
4G's come in flavors? KC, A link would be nice if it helps us pilgrims make better choices.
Thanks,
Tom from Rubicon

 

[KCvale]

Sick Bike Parts
http://sickbikeparts.com/shift-kit-and-all-drive-products/

Once you ride a shifter you never want to go back to direct drive ;-}

 

[KCvale]

Better still, the bikeberry trans has more gear teeth..and consequently..more torque.

BikeBerry 5G chain is garbage.

The chains wear and there is no way to adjust them.

 

[Deleted member 25783]

You didn't mention your latest, greatest NuVinci builds KC, and it is a valid option. Not cheap. but well engineered.

 

[Deleted member 25783]

BikeBerry 5G chain is garbage.

The chains wear and there is no way to adjust them.

You are right KC. But an internal idle tensioner could be integrated. Myself, I am going Grubee.
It is the old KISS

 

[CrazyDan]

You are right KC. But an internal idle tensioner could be integrated. Myself, I am going Grubee.
It is the old KISS

Only one that might be better than the grubee would be the e-z-matic, but then I'm not sure if it's worth buying 2 grubees, keeping one as backup. I docked over 12k miles on a used 4g-1c, now I've gotten around 5k on the 1b I bought, but still using the 1c big pulley and freewheeling 12 tooth output sprocket.

 

[Deleted member 25783]

I bought a EZ-matic $300.00 with the intention of adapting it to my Sportsman Flyer. I think I posted photos of my mods to the transmission. I can honestly say though, the EZ-matic centrifugal clutch makes all others a joke.
Made to withstand a 132cc 4stroke engine. The only one I know of better is on the Sportsman Flyer 80.
https://www.mhpsonline.com/store.php/milehigh/pd9236726/bully_clutch_-_6_spring_1_disc_-_jr._1_