Using shifter as dr...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

Using shifter as dropper remote (GRX)

16 Posts
10 Users
0 Reactions
2,021 Views
Posts: 695
Free Member
Topic starter
 

Anyone done this? It has occurred to me that I have a spare dropper which would fit nicely (girth and drop) into my gravel bike.

The bike has GRX kit, but unfortunately not the dropper lever version. I now run it single speed, so the gear shifters are redundant.

Is there an easy way to activate the dropper with the shifter? It would need to be a reversible hack I think.


 
Posted : 10/10/2022 4:30 pm
Posts: 13771
Free Member
 

Reversible might be the tricky bit, as you need to get rid of the indexing bits inside so it just pulls cable and releases


 
Posted : 10/10/2022 4:38 pm
Posts: 10333
Full Member
 

I've been wondering about this but using a 2x (front)105 shifter?


 
Posted : 10/10/2022 4:39 pm
Posts: 13771
Free Member
 

Video on it here, but "Dremel" and "cut" are the key words, I don't think you're coming back to a shifter afterwards.


 
Posted : 10/10/2022 4:48 pm
Posts: 695
Free Member
Topic starter
 

thanks, I don't know how I missed that video. Hmm,

1: Butcher a lever worth £180

2: Buy a dropper lever for £170

3: Abandon idea

4: Stick existing mtb trigger somewhere out of the way but accessable for compromised dropper action.


 
Posted : 10/10/2022 5:04 pm
Posts: 1041
Full Member
 

Buy a dropper lever for £170

Is it made of gold? You can have a PNW lever for £70ish?


 
Posted : 10/10/2022 5:28 pm
Posts: 1041
Full Member
 

Actually it is £40 Linky link


 
Posted : 10/10/2022 5:33 pm
Posts: 695
Free Member
Topic starter
 

ideally it would be one of these

https://www.bikeparts.co.uk/products/shimano-grx-st-rx810-la-grx-dropper-post-lever-left-hand?currency=GBP&variant=37056302022813&msclkid=be36824a464e15e32edee10e0fcf09b2

but that's a good option 5 thanks, better than my MTB one because of clamping diameter


 
Posted : 10/10/2022 5:36 pm
Posts: 13771
Free Member
 

Waaaay down at the bottom of this long article is a list of the best dropper lever options for drop bars

https://www.cyclingweekly.com/group-tests/drop-it-like-its-hot-the-best-dropper-seatposts-and-levers-for-gravel-bikes-year


 
Posted : 10/10/2022 5:46 pm
Posts: 623
Free Member
 

Have done it with mtb shifters before there was much choice in under bar dropper levers. Looked into it on the gravel bike and decided it looked like a faff so bought the PNW drop bar lever.

Works well, tidy enough, bit of a fiddle to wrap - would recommend.


 
Posted : 10/10/2022 5:57 pm
Posts: 1786
Full Member
 

I did some research on this a few months ago and ended up with the Easton two way dropper lever which is superb. It allows the dropper to be raised or lowered whilst on the hoods or drops, without having to move hand position, which is something levers designed for flat bars can't accommodate.

One downside is it's kinda fiddly to install and wrap but it's works so well, I'd overlook that...


 
Posted : 11/10/2022 3:11 am
Posts: 1208
Free Member
 

I modified a 105 lever, by cutting the ratchet and removing the unneeded lever. It works fine, but the cable pull is quite low, so the cable tension adjustment had to be just right.

This reminds me I need to sell them! If anyone wants a 1x11+dropper 105/RS505 flat mount setup, let me know.


 
Posted : 11/10/2022 6:31 am
Posts: 45504
Free Member
 

I've hacked up an old XT left hand shifter, as per YouTube videos, to operate my dropper. It works well.

You can get new left hand levers for buttons these days.


 
Posted : 11/10/2022 7:41 am
Posts: 21461
Full Member
 

Been pondering this with the new 1x12 GRX610 shifter.

I've only had a cursory look but on the 1x shifter, there is a cable entry slot and a cable guide towards the shifter mechanism. The brake lever is sprung in the "shifting" direction. The only thing stopping the lever swing is a nubbin on the lever limiting it's movement.

I'm wondering if cutting off that nubbin is all that's needed to make it a dropper lever.


 
Posted : 30/04/2024 9:13 pm
Posts: 177
Free Member
 

Hey Onzadog

Did you ever look into modding the 1x GRX lever to use as a Dropper Lever?

 

Cheers


 
Posted : 07/10/2025 10:30 am
Posts: 21461
Full Member
 

I've still got the shifters spare but never committed to hacking them up. I'm running the 810 now with the built in dropper function 


 
Posted : 07/10/2025 11:50 am

6 DAYS LEFT
We are currently at 95% of our target!