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Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: Takiyaki on April 06, 2025, 03:58:13 PM

Title: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: Takiyaki on April 06, 2025, 03:58:13 PM

Bought HRD shifters and an SRX RD; obviously not working. What's my cheapest option for a compatible RD with good gear capacity? Currently running a 40T cassette but would like the freedom to go bigger. From what I understand LTwoo GR9 RD should work but I'm also seeing Shimano GRX 812 RD for not much more.

Title: Re: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: raisinberry777 on April 06, 2025, 04:04:17 PM

Those shifters use the SRAM Road pull ratio. L-Twoo and Shimano RDs will not work with it. You'll want a SRAM Rival/Force/Apex 1 long cage rear derailleur. What's not working about the Sensah one?

Title: Re: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: jonathanf2 on April 06, 2025, 08:46:06 PM

Sensah looks like they switched the 12 speed Empire pull ratio to Shimano. I guess since SRAM doesn't do 12 speed mechanical.  ::)

These are listed as Shimano 105 7120 compatible!

https://www.aliexpress.us/item/3256807772742462.html (https://www.aliexpress.us/item/3256807772742462.html)

(https://ae01.alicdn.com/kf/S4a16e698d85b4deba7ed9f8e3a40e1cdr.jpg)

(https://ae01.alicdn.com/kf/S62149a9ccf49424c95b7ffcf81198902g.jpg)

Title: Re: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: Takiyaki on April 07, 2025, 08:29:21 AM

Going to take a chance on the GR9 RD. Someone needs to make a compatibility matrix. Very confusing.

Title: Re: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: Takiyaki on April 14, 2025, 08:14:31 PM

Update- GR9 works. Combo shifts a little strange though; I def prefer Shimano shifting.

Title: Re: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: raisinberry777 on April 14, 2025, 08:32:26 PM

Is this with 11 speed? Can you take a photo of the levers just so I can see which ones they are?

Title: Re: All mixed up with Sensah compatibility (HRD shifter- which RD?)
Post by: Takiyaki on April 16, 2025, 02:33:49 PM

I hate loading photos here. It's the HRD team pro. I would probably just get the whole GR9 combo vs trying to mix and match Sensah and LTwoo. Just strange that Sensah doesn't seem to have a mechanical Shimano 11 speed gravel groupset.