105/Ultegra hydraulic levers with Tiagra calipers?

Achtervolger · 2023-07-29T12:19:35+01:00

Does anyone know if you could use 105/ultegra hydraulic 11 spd STIs with Tiagra (RS405) hydraulic calipers? Or are they not compatible for any reason? Cheers!

This topic has 4 replies, 3 voices, and was last updated 2 years, 10 months ago by mark1a.

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July 29, 2023 at 12:19 pm #32654

Achtervolger

Does anyone know if you could use 105/ultegra hydraulic 11 spd STIs with Tiagra (RS405) hydraulic calipers? Or are they not compatible for any reason? Cheers!
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August 7, 2023 at 7:06 pm #1015673
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mark1a

That would make complete

That would make complete sense if they are the 4700 series BR-4770 calipers, it’s the previous gen BR-RS405 that aren’t according to the chart, which I think the OP was asking about.

August 7, 2023 at 6:52 pm #1015671
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RunFBRun

Hi, I have 105 shifters and
Hi, I have 105 shifters and Tiagra (rear) calipers on my bike.
Fitted by LBS about 18 months ago (remember the pandemic parts shortages?) and it works just fine 🙂
I’ve just checked my bike to make sure I wasn’t imagining it.
Hope this helps.

July 29, 2023 at 1:48 pm #1015667
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mark1a

It doesn’t appear that they

It doesn’t appear that they’re officially compatible according to the chart.

July 29, 2023 at 1:40 pm #1015669
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Achtervolger

Thanks for your reply and the

Thanks for your reply and the chart, really helpful.
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