Sram x4 Rear derailleur narrow wide rollers replacement

Sram x4 Rear derailleur narrow wide rollers replacement

thingiverse

I'm swapping out the rear derailleur rollers for a series x4 SRAM. I opted for variable tooth width to enhance shifting precision. Initially, I crafted a 12-tooth roller but decided to switch it up to a 10-tooth one instead. The reasoning behind this change was that a smaller diameter roller should yield more precise gear changes.

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