Bicycle Mechanics - Single Chain Ring to Double?

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View Full Version : Single Chain Ring to Double?


politicalgeek
06-11-10, 10:43 AM
Probably a stupid question: I have a Shimano 105 FC-1050 crankset w/44T ring on it. Can I pick up a second ring and some longer bolts to make it a double?


JohnDThompson
06-11-10, 05:54 PM
Sure, except you may also need a longer spindle for your bottom bracket if the inner chainring hits the chainstay.

politicalgeek
06-11-10, 07:11 PM
Good thing I don't have a bottom bracket yet. :)

Got the crankset off ebay for a 1x9 project and then rethought and figured it would be nice to build this bike up with a wider gear range.


Jeff Wills
06-11-10, 11:52 PM
Sure, go for it. It was a double originally anyway. If you wanted to get freaky, you could get extra-long triple bolts and install two rings and a guard, or a single ring with dual guards, or three identical rings...


http://hostelshoppe.com/images/products/la_ring_conversion.jpg