I'm building a single speed cross bike. I've got a lot of non professional mechanic experience, and plenty of other bike-related experience, but my fixed gear/single speed experience is limited to riding a motobecane track a few times.

Recently I visited my LBS and asked for a "flip/flop" hub, hoping to get one that would be fixed one way and free wheel the other. After looking around online, I found out that there are some flip/flops that are fixed/free, and fixed/fixed. I could probably just call my LBS to ask, but they don't re open until Tuesday. My question: can any of you guys tell if this is fixed/free or fixed/fixed? I'll lace it either way, but I'd rather not lace it to a Cross rim if I don't plan on racing it.

Here's a pic:

It's a very basic Iro Cycles hub. No model number is stamped on it, and it came without a box or literature to tell me any info.

Thanks in advance.

Your image link is broken. A fixed/fixed would look the same on both sides, completely symmetrical, and a fixed/free would have different threading on either side. For the record, fixed threading can accommodate a fixed cog or single speed freewheel, whereas freewheel threading can only have freewheel.

This site doesn't recognize html code. All you need to do it click the "insert image" tab and paste in the url of your image.

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Image link is broken. However, it should have a freewheel on both sides like this

You can still use a freewheel on either side, but that's a fixed/fixed hub.

Which if he asked for a "flip-flop" hub is what I would assume they would get for him seeing as it can be used as fixed/fixed, fixed/free, or free/free.

facepalm.jpg

Ok, trying to upload it direct from my computer. Everytime I add the link BF tells me that it's an invalid file, so here's the link on it's own.

https://twitter.com/#!/Junk_Yard_King/status/118012273229971456/photo/1

Really hope this ess works. Thanks for bearing with me, guys. I'm usually text only.

Looks like a Fixed/Fixed to me. which should support everything I said is should above. Sound correct to everyone else?

Just to help you out.

Here is a Fixed/Free


Here is a Fixed/Fixed


notice how one side on the fixed/free has a sudden change in diameter and thread, that change means that it can support a fixed gear, and the larger thread is for the freewheel. The other side of the fixed/free that has no change will only support a freewheel.

Thanks a lot, man. That's everything I need to know.