Page 1 of 1

Light upgrades for disc wheels bikes

Posted: Sun Oct 20, 2019 5:02 pm
by LouisN
Short story: Next year will be on disc brakes.
The new bikes are Ultegra 8000 equipped. I will be looking for some upgrades to lighten up the stock bikes.
I'm ok finding the usual lighter components, but the disc brakes are new to me.
So, wich components are good upgrades for a light racing disc brakes setup ?
-Discs ?
-Thru-axles ?
-Calipers lighter than 8070 8050 ?
Anything else I'm forgetting ?

thanks :beerchug:

Louis :)

Light upgrades for disc wheels bikes

Posted: Sun Oct 20, 2019 5:02 pm
by Weenie

Re: Light upgrades for disc wheels bikes

Posted: Sun Oct 20, 2019 5:14 pm
by Rudi
I've seen some titanium fixings for the calipers on ebay.

Other than that I'm guessing TA depending on what you have/are getting. J&L seem pretty light.

Re: Light upgrades for disc wheels bikes

Posted: Sun Oct 20, 2019 7:39 pm
by spdntrxi
thur axles indeed.. you can save alot of weight there potentially.. my BMC came with light ones already.
The usual Ti screws... but not always great everywhere... for the calipers maybe ok, not much force in Nm there... I've exactly stopped using Ti for stem bolts (they suck..or atleast chinese made do)

Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 3:47 am
by alcatraz
Crank? Light wheels? Light frame?

Proprietary parts no, standard yes. It will keep your options open.

Sram 11s group? Dura-ace?

Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 3:50 am
by Kayrehn
I got J&L ti disc bolts and thru axles on the way. Not sure where to find ti caliper mounting bolts though, or what size I should get. Light rotors. That's about it I think...

Sent from my SM-G930F using Tapatalk


Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 8:57 am
by Klaster_1
Kayrehn wrote:
Mon Oct 21, 2019 3:50 am
Not sure where to find ti caliper mounting bolts though, or what size I should get.
TitaniumPlanet has a variety of hollow Ti bolts, I used these on my DM fork, the weight is 3.18g with CF washers.

Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 9:52 am
by Kayrehn
Wow I didn't know CF washers is a thing ha, thanks for the tips!

Sent from my SM-G930F using Tapatalk


Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 7:08 pm
by LouisN
What about rotors ?
I read this other thread who mentions either Campagnolo with compatible calipers, or just stick with Shimano ?

Louis :)

Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 7:14 pm
by Klaster_1
LouisN wrote:
Mon Oct 21, 2019 7:08 pm
I read this other thread who mentions either Campagnolo with compatible calipers, or just stick with Shimano ?
What rotor interface? See XTR for Centerlock. For 6-bolt, Ashima Ai-2/AiNeon or KCNC Razor are best weight/price ratio.

Re: Light upgrades for disc wheels bikes

Posted: Mon Oct 21, 2019 7:19 pm
by LouisN
I'll be shopping for centerlock on the race wheels. It's 160 mm front, 140 mm rear (road bike).
Axles: 12X100X123 front 12X142X163 rear.

Louis :)

Re: Light upgrades for disc wheels bikes

Posted: Tue Oct 22, 2019 6:55 am
by icantaffordcycling
Hope rx4 callipers are the way to go.

Re: Light upgrades for disc wheels bikes

Posted: Thu Oct 24, 2019 12:17 pm
by LouisN
icantaffordcycling wrote:
Tue Oct 22, 2019 6:55 am
Hope rx4 callipers are the way to go.
Do you have these installed on your Allez ? I'm curious about the weight savings, and performance. Hope products are usually well rated.

Louis :)

Re: Light upgrades for disc wheels bikes

Posted: Thu Oct 24, 2019 1:36 pm
by Klaster_1
LouisN wrote:
Thu Oct 24, 2019 12:17 pm
Do you have these installed on your Allez ? I'm curious about the weight savings, and performance. Hope products are usually well rated.
Depends on how far you are willing to go. See my build list for detailed weights of RX-4. DM rear caliper is a couple of grams heavier than PM.

Re: Light upgrades for disc wheels bikes

Posted: Thu Oct 24, 2019 3:36 pm
by icantaffordcycling
No, I already had dura ace callipers so I was not willing to fork out extra and rebleed to get the RX4s working. My friend has them on his TCR and I installed them without any issues at all. Huge pads and 4 pistons.
Although he accidentally bought post mount callipers so much of his weight savings from Ultegra was negated.Image

Re: Light upgrades for disc wheels bikes

Posted: Thu Oct 24, 2019 3:36 pm
by Weenie