Upgrading 7 speed Freewheel to 10 speed

W1R3D

1 mW
Joined
Apr 21, 2016
Messages
16
Location
Alice Springs, Northern Territory, Australia
Hi guys,
I have been googling trying to find the parts and info to change my 48V1000WR rear hub motor to a 10 speed.
My goal is to upgrade the rear gears to match a set of sram xx grip shifter I have acquired.

I have found cheap 10 speed rear freewheel gear sets but I am not sure they will work with the sram xx's.

I do have the tools and the mechanical mind set to perform the work as this is my 2nd ebike I have built from the ground up.

2nd question would be the cheapest place to cut and thread 12g spokes in Australia. I know I can get them from China for around $70 including shipping but the wait time is the killer...

Any help would be greatly appreciated
 
W1R3D said:
I have been googling trying to find the parts and info to change my 48V1000WR rear hub motor to a 10 speed.
My goal is to upgrade the rear gears to match a set of sram xx grip shifter I have acquired.

That is a terrible case of the tail wagging the dog.

Everything 10 speed costs WAY more than 7, needs WAY more frequent adjustment, wears out faster, and takes up more of the rear hub's spacing, making the wheel weaker. 10 speed threaded freewheels are not only expensive, they're also imprecise enough that they interfere with shifting. You'll have to add spacing to the hub, then you'll probably have to bend your frame wider to fit the extra spacing. And you'll have to correct the dish of your wheel.

Unless you're using the ludicrously expensive SRAM XX or XXI hubs, derailleurs, and cassettes (which won't fit on a hub motor), you don't even get any extra gear range over using 7 speed. If you want to pimp your ride, go find a new old stock Shimano 11-34 7-speed threaded freewheel.

You're so much better off sticking with 7 speed.
 
Couldn't agree with Chalo more. Motorized, you simply do not need closer spaced gearing. 5 gears, but with one of them 11t would be ideal.

But what you are after might be a higher top gear. For that, a cassette ready motor is the winner.

But you're gonna do it anyway,,,

The best way to get all that, is buy a 10 gear bike. Seriously,, Then buy a cassette ready motor for it. $$$. But a ton better idea than taking a cheap bike and bolting a lot of expensive shit to it.

For now, forget it,,, salt away those shifters for later. Concentrate now on getting a motor that takes cassette, or a mid drive, if you want lots of gear choices.
 
Back
Top