3x10 Tiagra front mech compatibility
05-09-20 | 03:08 AM
#1
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From: Auckland, NZ
Bikes: 2014 Avanti Circa (Rd Dist), 2020 Giant Toughroad (Rd Tour), 2021 Trek Allant+ 8S (eCommute), 2021 Scott Aspect 940 (Mt HT), 2014 Santa Cruz Superlight 29er (Mt FS), 2022 Scott Spark 960 (Mt FS)
3x10 Tiagra front mech compatibility
Hi peeps, just wondering if anyone has any ideas on front MTB mech compatibility with Tiagra 4703 STI shifter pull ratios
I have had an SLX derailleur modified so my SLX 22/30/40 cranks work with my STI shifter, but I'm wondering if theres a front mech that won't need mods.
I have had an SLX derailleur modified so my SLX 22/30/40 cranks work with my STI shifter, but I'm wondering if theres a front mech that won't need mods.
05-09-20 | 01:04 PM
#3
Thread Starter
Junior Member
Joined: May 2020
Posts: 105
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From: Auckland, NZ
Bikes: 2014 Avanti Circa (Rd Dist), 2020 Giant Toughroad (Rd Tour), 2021 Trek Allant+ 8S (eCommute), 2021 Scott Aspect 940 (Mt HT), 2014 Santa Cruz Superlight 29er (Mt FS), 2022 Scott Spark 960 (Mt FS)
05-09-20 | 01:26 PM
#4
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From: Oregon
That could be an issue. Most road front derrailleurs ore designed for a 45-46 mm chainline. I'm assuming that your bottom bracket has external bearings. There is a thread about 9 spd crankset with the same problem. The discussion there is probably applicable to your question.
Deore M591. . . . . . ..
Deore M591. . . . . . ..
Last edited by Doug64; 05-16-20 at 05:43 PM.
