SRAM Red Rear Derailleur Tuning

[toutenhoofd]

Special thanks to coloclimber and dark_albert:
http://www.cyclingtechblog.com/2008/12/ ... erailleur/

Anyone get their SRAM Red rear derailleur lighter?

[critracer26]

nice to see some real ww stuff on here, seems to be so much other bs lately.

[Cyclist in the Sun]

Mine is 127.7 with a tuning kit. I guess a Fibre Lite inner plate might save a few grams, or some judicious paring down?

[spinwax]

Good stuff.


I can't wait to here how these ride. Mine shifts soooo well and crisp, I am really scared to mess with it for 20 or so grams.

[prendrefeu]

Mine is 127.7 with a tuning kit. I guess a Fibre Lite inner plate might save a few grams, or some judicious paring down?

Tuning kit? As in you purchased a kit that is ready-to-go for modifying your Red RD rather than sourcing out individual bolts and such?
Could you provide a source for this "kit" ?

[TheBugMan]

Great job toutenhoofd!

I'm sure these mods didn't cost nearly $1,200USD. May I ask how much $$$ you put into this project? I can't find that info in the blog.

[King Weel]

Mine is 127.7 with a tuning kit. I guess a Fibre Lite inner plate might save a few grams, or some judicious paring down?

Tuning kit? As in you purchased a kit that is ready-to-go for modifying your Red RD rather than sourcing out individual bolts and such?
Could you provide a source for this "kit" ?

Check www.xx-light-bikes.de (see under 'Aktuelles') for tuning kits.

[Cyclist in the Sun]

Mine is 127.7 with a tuning kit. I guess a Fibre Lite inner plate might save a few grams, or some judicious paring down?

Tuning kit? As in you purchased a kit that is ready-to-go for modifying your Red RD rather than sourcing out individual bolts and such?
Could you provide a source for this "kit" ?

http://www.likinbikin.com/Products/Dera ... Parts.html

[toutenhoofd]

Mine is 127.7 with a tuning kit. I guess a Fibre Lite inner plate might save a few grams, or some judicious paring down?

Tuning kit? As in you purchased a kit that is ready-to-go for modifying your Red RD rather than sourcing out individual bolts and such?
Could you provide a source for this "kit" ?

http://www.likinbikin.com/Products/Dera ... Parts.html

http://www.likinbikin.com/Products/Dera ... Parts.html

This tuning kit interests me. It's not going to save quite as much weight as what I did, but the pulleys are alloy rather than carbon, and I suppose those might last longer. Does anyone here have experience with them?

[BmanX]

Here is my 122g Sram Red RD. I am getting a new part built at work in the machine shop but I think I might only get it down to 121g.

[RWoodsHVAC]

Here is a tune i just put on a Sram Red Rear D/R after everything it weighs 117.5g

[RWoodsHVAC]

Here is the complete D/R

[RWoodsHVAC]

Picture of back side

[djconnel]

Nice! Lighter than the Lightweight, which is claimed 120 g:


I'm curious, however, how those pulleys will look in 2000 km.

[RWoodsHVAC]

I agree the pulleys could be the weak link here, However they do have nice sealed bearings in them. The plates are rock solid. I guess worse case you could use KCNC pulleys and still be 124g.
For now i am going to run the carbon pulleys until they fail and will post results.

Thanks

Rick