Timeline for Does the rear derailleur have a range of motion that exceeds that needed to move between the planes of the smallest and largest sprockets?
Current License: CC BY-SA 4.0
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| Sep 11, 2022 at 22:46 | comment | added | Nathan Knutson | @Sam dropouts vary in thickness, particularly between steel and everything else. That's the biggest need for a range of motion wider than the cog to cog spacing. Many steel frames (particularly ones with stamped dropouts) locate the small cog near the very extreme end of the range. There's nothing wrong with that. | |
| Sep 11, 2022 at 12:52 | vote | accept | Sam7919 | ||
| Sep 11, 2022 at 12:51 | comment | added | Sam7919 | Your answer suggests a simple test. Say the planes of the big/small sprockets are separated by 34 mm, and say the total range of motion of the rear derailleur is 40mm, then for ideal placement, we should have 3 mm on either side of free play. It would appear that that free play on either side is also an indication whether we got the wheel set up correctly for that derailleur. | |
| Sep 11, 2022 at 5:53 | history | answered | Nathan Knutson | CC BY-SA 4.0 |