Alright, how to reduce weight for Tarmac Sworks sl6 disc

[unlucky]

So, lets start with the new Tarmac Sworks Disc frame. lets assume it's going to be 750g. Assuming money is not as much of an issue, how can we build this up as light as possible? I'm going to assume Sram Etap, but that's as far as my expertise goes. Thoughts? Mechanical disc brakes?

[romalor]

don't use mechanical disc brakes
the weight gain is not worth it

I really doubt the SL6 disc will be under 750 gr ,
even the rim brake frame is quite a bit heavier than announced , except in no paint stealth version

you buy disc brakes cause they are good, mechanical db not so much

The SL6 has a specific seat post , so you can reduce weight maybe with some light hardware for the seat post .
Take light and stiff stem and handlebar

Carbon wheels with flat spokes like cx ray , 6 bolts rotor are lighter , but the best rotor dura aces are only available in center lock , so light center lock hub
Tubular if you want the lighter , Tubeless or good clinchers with latex inner tubs for rolling resistance and comfort .

Light 30 mm crank , the new s works ? Or hollowgram

Carbon saddle

I think that's it ....

[TobinHatesYou]

It's not going to be 750g. Since people's 56cm Ultralights are coming in at a >780g (and not the 733g claimed,) we can assume that the Ultralight Disc frame will be in the 810-830 range.

A high-end SL6 Disc Ultralight with something like a Berk saddle, shallow clinchers, eTap HRD, all carbon everything, light pedals, etc. could probably get down to 6.6kg before going with really exotic components.

[TobinHatesYou]

I think that's it ....

Lightweight thru-axles are an easy way to lose about 100g or so.

[romalor]

Yep !
Forget that !

Carbon ti or shift up at the back
Sram make a light axle for 12 or 15 mm fork , really cheap 40 euros too

[Marin]

1x mechanical with 3T cassette

Juin Hdyro-mechanical brakes

[romalor]

hydro brake all the way
don't bother with hydro mechanical , mechanical ,

it's stone age technology

[dcorn]

Start drilling holes in stuff?

[TonyM]

- 1 chainring only/ no FD

- Lightweight Meileinstein T Disc wheels: 1105g

[Shrike]

+1 to the 1x chainring setup. Get ahead of the curve

[stormur]

hydro brake all the way
don't bother with hydro mechanical , mechanical ,

it's stone age technology

....which is lighter and not spoiled by sticky pistons, fading, bleeding, and unf----nbelivable ugliness of hydro levers. To not mention it's double priced.

to make your life even more complicated, sure go 1x11. Why not ? Why your bike should be light & versatile ? Doesn't has to be. Not at all.

Remember also to choose frame without internal tube for rear brake hose. Then only you can experience full audio feel of disc braked road frame : RATTLING. On every non perfect surface ...what means on every surface

Don't forget as well to install rotors with cooling fins and pads with "cooling system" - bringing -time to time hot-calipers so close to structurally vital parts of the frame has its consequences... . Choosing hub for your wheels, be aware of possible clearance issues ( brake rotor vs frame ) - in many frames it's so tiny, that rotor is rubbing frame. Specially if both are "light".

I'm sure you're aware of all other unevitable issues with DB o road, so I stop here

[liam7020]

Yep if you want a lighter bike don't use disc brakes. Can't believe how easily people are led by manufacturers BS!

[L3X]

I'd just go with DA9170 except for the crank and the cassette. Go with a light pair of wheels (i.e. Leightweights, Bike Ahead Biturbo), cockpit (i.e. THM/MCFK), and crank (i.e. THM) and you end up with a really nice & pretty light bike. Additionally, you're wallet will be a lot lighter as well