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Tiagra 4700 AFAIK have different cable pull to the older 10 speed shifters, however the new derailleur are designed to work with a 11-34 cassette, meaning with some tweaking, 11-36 within the realm of possibility.
It's not that you can't ride with the 5700 shifters, you still can get decent braking performance, but with slightly more levers throw than you think.
edscoble-
Really? I've set up a few 5700/Spyre combo's and they've all been pretty tight. Actually helped colleague re-cable his today. Good bite with little lever throw. Just gotta spend time with them.
Can also confirm, Shimano tech rep emphatically says 4700 is different to older 10 speed, something like 3.5/1
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I thought they moved to the 'New Super SLR' brake pull ratio on the X700 series?
Chak
hamrack
...and there I was thinking I'd chosen good components for a decent cable disc brake setup. Didn't know that about the 5700's cable pull. Originally I was planning on running Shimano 5800, but the rear hub isn't wide enough to take an 11sp road cassette hence going for a 10sp MTB cassette with road 10sp shifters.
Annoyingly not silver, but Tiagra 4700 shifters seem like the best choice for compatibility? (Shimano XT M772 9 sp derailleur / Shimano XT CS-M771-10 11-34t cassette)
Thanks for the info!