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Are 10 Speed Road Bike Derailleurs Compatible with Any 10 Speed Road Bike?

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Are 10 Speed Road Bike Derailleurs Compatible with Any 10 Speed Road Bike?

Old 06-23-15, 10:20 AM
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Are 10 Speed Road Bike Derailleurs Compatible with Any 10 Speed Road Bike?

Hey there, so I'm a noob, bear with me, but I recently bought a 10 speed Raleigh Sports Racer that has been converted to a single speed. The rear sprockets are still there as well as the 2 chain rings. So my question stands, and what should I consider when looking at prospective front and real derailleurs? I can post pictures as well, just let me know.
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Old 06-23-15, 10:30 AM
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First, let's define terms. 10 speed used to refer to bikes with 2 sprockets in front and 5 in back. Later that changed to 2x6 or 12 speed. After that the terminology changed so when they went to 2x7, it was called a 7speed, and now 10 speed refers to 2x10 or 3x10.

So my first question is 10 speed -- 2x5 or 2x10?

Then keep in mind that if you're talking about a older 2x5 bike, it's be friction shifting and you use any derailleur. However if it's a modern 2x10 bike things get complicated, and there are brand mixing and compatibility issues to deal with.
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