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Discussion Starter · #1 ·
I am rebuilding my Girlfriends Mongoose, but I am stuck with out the too to remove the BB. So what do I need?

 

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Crappy picture (use a macro setting and/or move a few cm further away), but it looks like a Shimano/ISIS interface. You need a tool like this one, just make sure that you get one with a suitable drive interface (1/4" or 1/2" socket and/or spanner fitting) for whatever drives you have in your toolbox.
 

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Sure looks like the Shimano/ISIS interface, altho I've not seen one with the four gaps between series of teeth like that appears to have.
 

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Discussion Starter · #5 ·
Here are better images. I actually have the Shimano/ISIS tool and it does not fit. It needs to be a tad longer to allow for the axle sticking out and there are way too many teeth.



 

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Looks like it's a 20 tooth interface like the Shimano/ISIS tool you've got (at least accounting for the gaps that's what I counted), but you've got that goofy projection inside your bb tool, try the Park BBT-22, doesn't have that projection.
 

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I think its Park bb18 or eq. but I'm not 100 % positive .
 

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Discussion Starter · #8 ·
This is BB18



Looking at my Park Book there is nothing in it that looks like it exactly.
 

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Yeah , I got nothing other than trying an adjustable pin spanner . Someone knows what it is , maybe try posting in the Mongoose forum .
 

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I was looking at your first picture for the tooth count, seems like the 20 tooth tool should work. No way that's the BBT-8/BBT-18 interface, though. Your new photo isn't much better, but does look kinda lik the teeth don't line up now that I peer at it some. Maybe some proprietary thing Mongoose used if the 20-tooth tool doesn't mesh even without the projection...any Walmart mechanics out there? :D (altho thinking about that, they probably install that at the factory).

PS You might try the bicycle mechanics section over at bikeforums.net, some of those guys have seen just about every bike out there.
 

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If its not stuck you could use a punch and hammer , work carefuly .
 

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Discussion Starter · #13 ·
AZ.MTNS said:
If its not stuck you could use a punch and hammer , work carefuly .
Thats a possibility.

I thought about drilling out the back of the tool I have and see if it holds up. If I have to buy a whole new tool any ways, I mine as well try and get the one I have to work.
 

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Dremer03 said:
Thats a possibility.

I thought about drilling out the back of the tool I have and see if it holds up. If I have to buy a whole new tool any ways, I mine as well try and get the one I have to work.
Your tool may be hardened , if it is its going to be extremely difficult to drill .
 

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Discussion Starter · #15 ·
AZ.MTNS said:
Your tool may be hardened , if it is its going to be extremely difficult to drill .
Not a problem if I can find the right bit. I have actually drilled through 5160 carbon steel 7.5mm thick :thumbsup: Doesnt sound like a lot but when it is hardened it takes a while.
 

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Discussion Starter · #17 ·
Yes I do, but they are gone until they come back to the state for school.
 

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Discussion Starter · #18 ·
Bikinfoolferlife said:
Somewhat a matter of opinion :D .
It is most certainly a very basic bike. But no different that you would find for 300 dollars at a LBS currently.
 

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reptilezs said:
try a bmx freewheel remover
Good thought, although fwiw I just compared the BBT-22 to an FR-6 (four-notch freewheel tool) and the notches are at a significantly larger diameter...
 
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