Old 12-30-20, 09:54 AM
Join Date: Oct 2020
Location: Northern California, USA
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Can you measure Shimano 12 speed rear derailleur length?


Hopefully I can reach out to someone with a Shimano long cage 12 speed rear derailleur. If so, could you please measure the distance from where the derailleur attaches to the frame (center of bolt) to the very bottom of the rear derailleur swing arm at 6 o'clock position? Not entirely mountain bike relating but I'm wondering if I can use a wide range cassette (50 or 51 tooth) on a small folding bike (16" wheels / 20" wheels). Or would it be too long and would the bottom portion hit the pavement? My folding bike is a 1x system so having a 1x - 12 speed will really help get good gear ratios.

Thank you!
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