Dolan Seta - From Lightweight to Carbon Slave

Thanks for your write up. I have been looking at a Seta build for the last couple of days so it's good to see one used on the road. What's the ride quality and geometry like for the road?

props for all the work you've put into this, and although your bike does not meet my gusto,
you inspired me to see how light I can get my current project.

I started with a carbon seatpost haha:)

Can you replace any nuts and bolts?
Seatclamp?
BB?

barends?
Bar tape?
brake levers?

nothing will be changed now, rides great

Are you riding a 1/8" chain and chainring? There is possibly about 150g of saving in switching to 3/32" chainring, sprocket and some SL (x)-speed chain.

1/8" and i don't want to change to 3/32" but thanks for the advice

Can someone Photoshop a track disc onto the back, with the FFWD wheel on the front?

on it

Can someone Photoshop a track disc onto the back, with the FFWD wheel on the front?

was just going to make it black, but thought i'd make it a bit more matching ;)

Nice work!

1.2kg though, wonder if there are lighter discs out there.

1,025g

Sugino Tension disc wheels are apparently ~850g.

You could replace the standard alloy rim with a carbon one and drop some weight there I think.

980g

780g

Those are built using exactly the same principle as the Sugino/Tioga tension discs, but with "carbon tape" rather than kevlar strands, hence the very similar weight.

Tester will be along in a moment I'm sure .. but not all discs are equal aerodynamically at beneficial wind angles (sail effect)

True- I however am currently using a) weight and b) looks to decide on a wheel recommendation that that Eingang can then ignore.

If aerodynamics were an important consideration then I would guess that some clip-on extensions would be the first port of call.

two week ago i decided to order a lighter front quick release skewer. the lightest i could found was the tune u 20. but they are currently not available in black and only for the front wheel at the german distributor and i don't wanted an unknown time i changed my order to a tune dc 14 (16g). it arrived 2 days ago and looks really slim.

stage 6: 6.35kg

Good job.

Light rear wheel and 3/32" transmission and you are well under 6kg.

Shhh!!! Don't give him ideas!!!

as i said before i'll not change to a 3/32" transmission. and i'm not quite clear about building a stiff and light rear wheel, regarding the use for the city and my weight. will see...

Possible rear-wheel, idea #87678:

black non-machined velocity aerohead o/c - 24h - 418g
american classic rear track hub - 24h - 180g
black sapim cx ray incl. nipples - 24h - appr. 108g

total: 706g
current ellipse rear wheel: 990g
saving: 284g
new total weight: 6.066kg

woah.

Chinese carbon 50mm rim is 320g, plenty stiff for my 77kg.

you're talking about a tubular rim, i want a clincher one!