XT Di2 Custom shifter setup take 5

Discuss light weight issues concerning mountain bikes & parts.

Moderator: Moderator Team

Post Reply
motorapido
Posts: 335
Joined: Fri Jul 30, 2010 7:08 pm

by motorapido

I've been playing around with lots of different versions of Di2 shifters as i don't get along with the stock XT version and have settled on this latest iteration. all parts are 3D printed in nylon 12 SLS material, and include a junction A mount, RH shifter body and button, LH shifter body and Button that also incorporates the dropper post remote mount. These are bolted to Formula R1 brake levers using the MixMaster bolt and brake lever clamp. The Di2 electronics is the module from an SW-R600 road climbing shifter or Alfine flat bar shifter.
A flick of the thumb is all thats needed to shift, and other than the thumb, the hand doesn't need to be moved to activate the dropper remote or fork lockout levers, and since this is weightweenies thought i'd better add some weight info,

Di2 junction 'A' holder is 6.0g with the mounting tape on it,

RH shifter with a steel M5 mounting bolt & its wire is 10g,
LH shifter with a steel M5 mounting bolt & its wire, and metal threaded insert to bolt the dropper remote to is 16g.
The gutted SW-R600 is 5g,
So the shifter setup complete is 31grams not including the dropper remote lever itself or the junction A mount.
A stock XT di2 shifter is 92grams. So the new setup is 1/3rd of the weight.

ImageIMG_20240323_162758_resized_20240323_050408909 by Paul Townsend, on Flickr
ImageIMG_20240323_162834_resized_20240323_050410334 by Paul Townsend, on FlickrImageIMG_20240323_163339_resized_20240323_050221322 by Paul Townsend, on Flickr
ImageIMG_20240323_162936_resized_20240323_050409544 by Paul Townsend, on Flickr
ImageIMG_20240323_163038_resized_20240323_050245636 by Paul Townsend, on FlickrImageIMG_20240323_162954_resized_20240323_050411954 by Paul Townsend, on FlickrImageIMG_20240323_162910_resized_20240323_050410750 by Paul Townsend, on FlickrImageIMG_20240323_162912_resized_20240323_050328111 by Paul Townsend, on Flickr
Last edited by motorapido on Sun Mar 24, 2024 12:17 pm, edited 2 times in total.

User avatar
TerryDi2C
in the industry
Posts: 280
Joined: Wed Nov 27, 2019 7:24 pm
Contact:

by TerryDi2C

Very cool - love it!

I may have overlooked it, but... where are the SW-R600 electronics? :)

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



Upcountry
Posts: 184
Joined: Mon Aug 07, 2023 10:59 pm

by Upcountry

Dig it! Its wild that we're all left wanting so much from Shimano in terms of Di2 on the dirt(mtb and gravel)... Great job problem solving for their short comings!

motorapido
Posts: 335
Joined: Fri Jul 30, 2010 7:08 pm

by motorapido

its hidden on the underside section of stem section of the bars, Then the wires are soldered onto the switch pads inside the module, and i use flat wire. This runs on the underside of the bar to the shifters under some CF effect vinyl wrap that blends in with bars carbon weave. So the wires are pretty much invisible.
and since this is weightweenies thought i'd better add some weight info,

Di2 junction 'A' holder is 6.0g with the mounting tape on it,

RH shifter with a steel M5 mounting bolt & its wire is 10g,

LH shifter with a steel M5 mounting bolt & its wire, and metal threaded insert to bolt the dropper remote to is 16g.

The gutted SW-r600 is 5g,

So the shifter setup complete is 31grams not including the dropper remote lever itself and the junction A mount.
A stock XT dir shifter is 92grams. So the new setup is 1/3rd of the weight.

Post Reply