Shimano cassette remover that fits over hub motor shaft.

[Oscar_Muffin]

I'm trying to remove a Shimano cassette from my rear wheel, but the cassette remover I have doesn't have a large enough hole to fit over the shaft. I've tried drilling and filing it out but it's hardened steel so I'm not getting anywhere. Does anybody know where I can get a remover that is large enough to fit over the shaft? The shaft is about 12mm in diameter.

Motor - Bafang 8fun 350w rear hub motor
Cassette - http://goo.gl/wmtVKu

 

[Kyle201]

I had this same problem with my ACS freewheel remover. Hardened steel.. you can remove the harden by heating it up red hot with a torch and then letting it cool slowly. I did this, then hand filed it down enough to work. Pain in the ass and took some effort, but it worked. A dremel would be a lot easier. I attemped to re-harden it after as well, heat, then quench.

 

[Oscar_Muffin]

I had this same problem with my ACS freewheel remover. Hardened steel.. you can remove the harden by heating it up red hot with a torch and then letting it cool slowly. I did this, then hand filed it down enough to work. Pain in the ass and took some effort, but it worked. A dremel would be a lot easier. I attemped to re-harden it after as well, heat, then quench.

Thanks, I'll get right to it. I have a large dremel luckily.

 

[jimw1960]

I was able to drill a bigger hole in mine quite easily. It was just a cheapie tool, so not hardened steel, I guess. Maybe if you buy a cheap one like the one on the link below, it will be easier to drill. In fact, one of the review comments is by a guy who had to drill his out.

https://www.biketiresdirect.com/product/park-tool-fr-5-shimano-cassette-tool

 

[Russell]

I got this one from AliExpress for $3.68 delivered.

http://www.aliexpress.com/item/New-Carbon-Steel-Mountain-Road-Bike-Bicycle-Cassette-Flywheel-Remover-Disassemble-Socket-Cycling-Repair-Tool/32278212973.html

The opening is 13x13mm so it fits my Dapu cassette motor 12mm axle just fine. It would need to be opened up a bit to fit a 14mm axle.

-R

 

[Oscar_Muffin]

I was able to drill a bigger hole in mine quite easily. It was just a cheapie tool, so not hardened steel, I guess. Maybe if you buy a cheap one like the one on the link below, it will be easier to drill. In fact, one of the review comments is by a guy who had to drill his out.

https://www.biketiresdirect.com/product/park-tool-fr-5-shimano-cassette-tool

Thanks for the help, I should have brought up the fact that I live in the UK though. I haven't seen many people from over here probably due to the ludicrous power, weight and speed restrictions that we have for e-bikes which makes them more of a novelty rather that useful transport. Luckily where I live you might see a bobby once in a blue moon so I can get away with pretty much anything. Anyway, thanks for the help again but I've already "un-hardened" my current tool and dremeled most of what I need. Just gonna finish it off tomorrow and get that pesky cassette off.

 

[motomech]

The way to open those holes is with a small conical stone/bit in a drill motor.
Go in on both sides until the hole is large enough.

 

[Htfan]

I also had the exact same problem with a hardened steel freewheel remover. Some patience working on the opening with a dremel solved the problem!

If a picture helps, here it is:

 

[Oscar_Muffin]

I also had the exact same problem with a hardened steel freewheel remover. Some patience working on the opening with a dremel solved the problem!

If a picture helps, here it is:

Yea, I'm practically doing the exact same thing. Nice big dremel, "Un-harden" the steel and work at it with a conical stone.

 

[d8veh]

You're a little bit mixed up. You want a freewheel removal tool, not a cassette one. They're different. I have some that fit over the axle if you're in the UK. I also have DNP freewheels with 11T top gear for pedalling at higher dpeeds.