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Brake Compatibility Road Calipers

Old 06-01-21, 04:24 PM
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Catahoula
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Brake Compatibility Road Calipers

Shimano's brake designations and cable pull ratios have me confused. I've got a set of shimano brakes that are Super SLR. I've also got a set of Microshift 3X9 brifters. Are they compatible? Do I need to scrounge a set of Shimano levers? Thanks!
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Old 06-02-21, 11:08 AM
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about all i can say is i don't see why they wouldn't be compatible given the MS shifters are compatible with shimano drivetrain.
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Old 06-02-21, 01:36 PM
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It can get complicated. Here's a thread. The Definitive (But Wildly Inaccurate) Guide to Brake Cable Pull Ratios I think things started changing with the series that featured under bar tape shifter cables. Super SLR may be prior to that if the linked post is correct. I'd try it since you have the parts.
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Old 06-02-21, 02:00 PM
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Originally Posted by shelbyfv View Post
It can get complicated. Here's a thread. The Definitive (But Wildly Inaccurate) Guide to Brake Cable Pull Ratios I think things started changing with the series that featured under bar tape shifter cables. Super SLR may be prior to that if the linked post is correct. I'd try it since you have the parts.
Technically yes, they did change the cable pulls with the 6700 series onwards, but having mixed and matched, as long as you stay away from MTB brakes, you probably won't be able to tell any difference unless you rode 2 bikes with the exact correct setup on an identical course one after another.
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Old 06-02-21, 02:08 PM
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Since you have the parts on hand, give them a try. "Compatible" is not black-and-white (except for V-brakes being incompatible in this instance), the leverage may vary somewhat but you may find they are fine, or not, for you. The most it will cost you is another set of brake cables, and some time. Make certain that the brake pads are in good condition and not hardened with age.
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Old 06-02-21, 02:16 PM
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Thanks for the feedback! I’ll give them a shot!
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Old 06-02-21, 03:28 PM
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I’ve done lots of mix and match combos with good results. Shimano loves to say this lever is only compatible with Super SLR calipers and vice versa. That might be true if you expect to get max performance, but chances are they’ll work together pretty well. This includes even cantilever brakes. As mentioned above the straight-pull “V brakes” are an exception. They require a cable pull that’s quite different from everything else.
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Old 06-03-21, 07:32 AM
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Originally Posted by jimc101 View Post
Technically yes, they did change the cable pulls with the 6700 series onwards, but having mixed and matched, as long as you stay away from MTB brakes, you probably won't be able to tell any difference unless you rode 2 bikes with the exact correct setup on an identical course one after another.
But have you mixed and matched with the latest SLR-EV levers? SLR-EV levers pull about twice as much cable as 9/10-speed era Shimano (Super SLR) putting them in the same realm as MTB v-brake levers. I haven't actually tried SLR-EV and v-brakes but I'd be surprised if it didn't work. And I have done the reverse: I installed v-brake levers on my son's bike with SLR-EV-pull-matched calipers (TRP HY/RD) and the lever pull feels normal.
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Old 06-04-21, 12:28 PM
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Originally Posted by joejack951 View Post
But have you mixed and matched with the latest SLR-EV levers? SLR-EV levers pull about twice as much cable as 9/10-speed era Shimano (Super SLR) putting them in the same realm as MTB v-brake levers. I haven't actually tried SLR-EV and v-brakes but I'd be surprised if it didn't work. And I have done the reverse: I installed v-brake levers on my son's bike with SLR-EV-pull-matched calipers (TRP HY/RD) and the lever pull feels normal.
SLR-EV as in current (from 58/6800 series onwards), SLR-EV | SHIMANO BIKE COMPONENT yes, have (do run) a 6800 STI with 6700 (not 'EV') calipers, and it works
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