Need Help Removing a Shimano MF-TZ21 7-Speed Freewheel
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Need Help Removing a Shimano MF-TZ21 7-Speed Freewheel
My sister has a 7-Speed Micargi Beachcruiser with a Shimano MF-TZ21 Freewheel that I'm trying to remove from the rear wheel. I've researched for a week on how to remove this and have yet to find something that works...
I asked an employee at Performance Bike about my problem and he said that the Park Tool FR-5 Cassette Lockring Tool, along with a chain whip, should be able to remove it. I have both of these tools and my problem is that the lockring tool is a bit too large to fit... I've seen many YouTube videos and lots of help threads about removing cassettes/freewheels with these tools and it looks really simple because these (more modern/expensive?) models have a silver lockring that allows the lockring tool to fit in perfectly for installation/removal. The MF-TZ21, however, does not...
Would I have to purchase a silver lockring to remove it, or more importantly, is the silver lockring I'm seeing in all of these videos even compatible with the MF-TZ21? Any advice/help is appreciated.
I asked an employee at Performance Bike about my problem and he said that the Park Tool FR-5 Cassette Lockring Tool, along with a chain whip, should be able to remove it. I have both of these tools and my problem is that the lockring tool is a bit too large to fit... I've seen many YouTube videos and lots of help threads about removing cassettes/freewheels with these tools and it looks really simple because these (more modern/expensive?) models have a silver lockring that allows the lockring tool to fit in perfectly for installation/removal. The MF-TZ21, however, does not...
Would I have to purchase a silver lockring to remove it, or more importantly, is the silver lockring I'm seeing in all of these videos even compatible with the MF-TZ21? Any advice/help is appreciated.
#2
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you need the parktool 's FR-1 tool https://www.parktool.com/product/freewheel-remover-fr-1to remove the freewheel. the FR-1 look like the FR-5 but longer .
#3
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Did the shop sell you a chain whip and a cassette tool to remove a freewheel? If so, return them. You don't need either of those. You need a freewheel remover. It looks very similar to your cassette tool, but has a different set of splines. To remove the freewheel with the correct tool, you only need to insert it and turn left (counter-clockwise.) This may be very difficult, and you may have to put the tool in a vice to actually remove the freewheel.
It's very important to be clear on the difference between a freewheel and a cassette Freehub: https://www.sheldonbrown.com/free-k7.html
It's very important to be clear on the difference between a freewheel and a cassette Freehub: https://www.sheldonbrown.com/free-k7.html
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FJ is right -- if the shop sold you freehub tools when you told them you had a freewheel, they messed up big time and should be happy to take back the tools for a refund (even if opened). You might also want to find an alternate source for bike wrenching info
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you need the parktool 's FR-1 tool https://www.parktool.com/product/freewheel-remover-fr-1to remove the freewheel. the FR-1 look like the FR-5 but longer .
I guess only one tool is needed for removing/installing freewheels; all the videos I watched were about removing cassettes then lol. I'll go ahead and hang onto the FR-5 tool and chainwhip anyways, since I have a roadbike with a 21 speed cassette that I'll need to clean later.
#6
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To remove a freewheel you need the proper splined tool and most likely a long breaker bar. They get very tight over time and can be difficult to remove. It will help to use the QR to hold the tool in place.
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And turn the wheel counter clockwise. Use the qr lever to hold the freewheel tool in place so it doesn't slip out. make the qr lever almost tight, with a small wiggle. After the freewheel breaks loose 1/2 turn or so, you can remove the qr & continue unscrewing the freewheel.
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