Bicycle Mechanics - 48t on a compact crank
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05-19-06, 11:44 AM
I have a 50/34 compact crank that I would like to put a 48t outer ring on. Will I have any issues doing this. It is a nasbar rpm compact crank. Also looking for recommendations on who makes descent chainrings. Am also hoping this will keep any shifting problems with my 105 FD.
05-19-06, 11:48 AM
48t will work fine. You could probbaly lower the front mech a tad to improve shifting with the smaller ring.
Specialities-TA make excellent rings used by many long distance tourists and professional racers. They are hardwearing and have all the pins and ramps.
05-19-06, 11:50 AM
I've got a 110 BCD crankset and am running a 48t big ring and Shimano 105 front derailleur. Works flawlessly. The Nashbar chainrings you can order separately are made by Stronglight (they actually come in a Stronglight package), at least the ones I've ordered are. They seem to be nice chainrings, I've had no problems.
edit: I agree with Michael W, you'll need to lower the front der. just a bit with the smaller size ring.
05-19-06, 11:53 AM
Some compacts are sold with the 48 instead of the 50. 48-110 bcd rings are readily available. Salsa, FSA, Sugino, just to name a few has them. I think 48 makes a lot of sense. If you like your top end, make sure your cassette at least includes a 12 cog.
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