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BrandSpeedsShifter Cable Pull [2]Derailleur Ratio [3]Sprocket Width [4]Sprocket Pitch, calculated [5]Sprocket Pitch, measuredCassette Width, calculated [6]Cassette Width, measured [7]Notes [8]Spacer thickness
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Shimano road/mtb63,21,71,855,445,5029,129,5Except Dura Ace 7400
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Shimano road/mtb72,91,71,854,935,0031,431,9Except Dura Ace 74003,15
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Shimano road/mtb82,81,71,854,764,8035,235,4Except Dura Ace 74003
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Shimano Dura Ace 740082,51,91,854,754,8035,135,43
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Shimano Dura Ace 740092,31,91,784,374,3536,736,52,56
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Shimano road/mtb92,51,71,784,254,3535,836,52,56
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Shimano road102,31,71,63,913,9536,837,2Ultegra 6700, 105 5700 5600 , Tiagra 4600 SL-4600 SL-R780 SL-R4602,35
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Shimano Tiagra 4700102.81,41,63,913,9536,837,2Compatible with GRX 10s (gravel) :ST-RX400 RD-RX400 SL-47002,35
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Shimano mtb103,41,21,64,083,9538,337,22,35
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Shimano LinkGlide mtb/Cues?103,711,63,7034,9
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113,711,63,7038,6
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Shimano road112,71,41,63,783,6939,439DURA-ACE (R9100 9000), ULTEGRAb (R8000 6800) SHIMANO 105 (R70005800) GRX (RX810 RX600) SL-U5000 SL-RS700 SL-BSR12,14
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Shimano mtb113,61,11,63,963,941,2392,14
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Shimano mtb123,31,11,63,633,5541,5SRAM 12 shifters are apparently compatible with Shimano 12S RD using SRAM 12S cassette
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Campagnolo83,51,41,94,90536,236,93,1
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Campagnolo road93,21,41,754,484,5537,638,2"Old" cassette2,8
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Campagnolo road93,01,51,754,504,5537,838,2"New" cassette2,8
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Campagnolo road102,81,51,74,204,1539,538,8Variable pitch2,42
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Campagnolo road112,61,51,63,903,7640,640,1Variable pitch2,25
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Campagnolo road121,453,4840,9Same 11S freehub, big sprocket overhangs toward spokes
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Campagnolo road13Same cable pull as Campagnolo 12
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SRAM mtb74,51,11,854,95531,632,4
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SRAM mtb84,31,11,854,734,835,035,43
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SRAM mtb94,01,11,784,404,3537,036,52,54
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SRAM road/mtb103,11,31,64,033,9537,937,22,35
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SRAM road113,11,31,64,033,7241,9
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SRAM mtb113,51,121,63,923,940,8
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SRAM mtb123.31,121,63,653.6541,8
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Rotor road/mtb13--1,63,6545,412S width and pitch + 1 sprocket, hydraulic group
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Box mtb8/91,784,25Not compatible with Shimano 9 shifters/derailleurs
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Box mtb113,61,11,63,9641,2Box claims Shimano 11 MTB-compatible
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Microshift road/mtb82,81,71,854,7635,2Microshift claims Shimano-compatible
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Microshift road/mtb92,51,71,784,2535,8Microshift claims Shimano-compatible
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Microshift Advent mtb94,01,11,784,3536,6Measured by an owner
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Microshift Advent X mtb103,61,11,73,9136,9RD is compatible with Advent 9. However, Microshift claims variable cable pull for the shifter.
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Microshift mtb103,41,21,64,0838,3Microshift claims Shimano-compatible
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Microshift road102,31,71,63,9136,8Microshift claims Shimano-compatible
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Microshift mtb113,61,11,63,9641,2Microshift claims Shimano-compatible
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Microshift road112,71,41,63,7839,4Microshift claims Shimano-compatible
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[1] If the manufacturer has used a different cable pull / derailleur ratio for the same number of gears, this is the model it applies to
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[2] Average length of cable (mm) moved per indexed click. Not necessarily the same for all clicks
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[3] Extent the derailleur moves for a given amount of cable pull
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[4] Thickness of each sprocket (mm)
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[5] Distance between the center of each sprocket (mm)
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[6] (mm)
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[7] (mm)
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[8] http://www.bike.bikegremlin.com/2015/07/15/speeds-rear-sprockets/
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http://blog.artscyclery.com/science-behind-the-magic/science-behind-the-magic-drivetrain-compatibility/
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https://en.wikibooks.org/wiki/Bicycles/Maintenance_and_Repair/Gear-changing_Dimensions
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