Weight-Weenie Fixed Hillclimb Bike

sand the paint of the frame and then some cheap full carbon forks off ebay should get the frameset weight down by about 600 grams

I have Chinese bars, they don't flex, but I'd still be worried in a hillclimb #rankcowardice

To put this project into perspective, my mate who tends to win hillclimbs has a Cannondale with gears and brakes at 5.1kg, it wasn't built on a tight budget.....

Those planet x forks are 380gish, doubt I'll upgrade them given the budget. Not going to strip the paint.

Oh, thought the current ones were the oval ones in the op, yeah, wouldn't bother then, taking the paint could take 200 grams off if it's that thick though

....and having a shit before racing could save up to a kg #justsaying

Target for my own weight is below 72kg, normally around 74.

Pretty sure they quote the mash at 1500-1600g

Forks + headset = 500g

Chinese crabon shallows with tubs = 1700g

Road cranks + bb + chain + cog = 1000g

Stem + bars = 400g

Brake + lever = 300g

Seat + post = 250g

You ought to be able to hit around 5.5kg without trying too hard.

Look forward to the thread. :)

How many grammes is being bald worth?

A good 50g, plus advanced aeros....

Upside, is that 72kg post-dump? If so (and presuming a pre- weight of 74kg) that's an impressive clear-out! Actually, same race weight as me, which is why the last picture of me in a competitive hillclimb is in black & white and I had hair.

Carbon chinese BB30 frame + eccentric BB.

Go away with your logic. The Vigorelli and its paint are staying.

Instead of paying insane money for lightweight clincher, get MTB disc rims, they can go less than 400g.

Unless you intend to use the front brake quite a lots.

I'll be using tubs.

chinese 20mm tubs, 28/24 with mack low flange hubs.

I'll be doing something similar with clinchers.

Or:

28h is the only drawback, but as I already have the rim I think I'll live with it. £20 hub and £25 of spokes should build up as a >500g wheel.

I have a 320g rear tub rim also 28h but I might get something fancier.

Build plan:

Frame: Vigorelli, 1600gish
Forks: Planet X Team, full carbon, 390ish
Bars: TBC
Stem: Kalloy Uno 110mm, 115g
Headset: Campag Hiddenset with Record Carbon cover and tester topcap, 40gish?
Bar Tape: Probably Microtex, unless there's a cheap WW option

Front Brake Lever: TBC. Love my Record brake levers but they are chunky
Front Caliper: Planet X lightweight, 160gish
Cables: Powercordz, 24g.

Seat: Chinese full carbon, 110g
Seat Post: CarbonCycles inline, 184g
Seat Post Clamp: Mt Zoom, 5g

Cranks: Sram Red 170mm
Chainring(s): Probably TA, 3/32
Chain: Something slotted, KMC
Cassette: Generic 3/32
Pedals: Speedplay with Ti Axles
Bottom Bracket: SRAM

Front Wheel:
Rim: Fiamme Ergal 28h, 280g
Spokes: DT Swiss Revolution, 124g
Hub: mr-ride 28h, 78g
Tub: Vittoria Chrono Evo CS 22mm
QR: Mt Zoom, 21g

Back Wheel: TBC
Rim: TBC
Spokes: TBC
Hub: Mack Low flanged
Tub: TBC, something a bit more durable

Smattering of Ti bolts

"Bar tape" >>>>>

So black & white is more aero than hair?

Colour particles mess up airflow as any fule knoe.

Much as I love proper metal rims, GEL280s used to go out of true every time I raced them when laced radial; every other time when laced 2 cross and exploded without warning every time I began to feel safe when laced 3 cross. I hope 280g Fiamme are better!

Budget ti Speedplay?

for the rear wheel why not use a mtb front hub conversion for bolt on? would be lighter than mack and could be set up for 46mm chainline to pair with road cranks

Budget ti Speedplay?

http://www.lfgss.com/conversations/200779/

Cheers for the link. Yes, that is the plan.

Or http://www.tririg.com/articles.php?id=2013_04_Mercury_Production

Are they lighter? An XT front hub is 244 grams before you change the axle and add spacers, a Mack low flange rear with bolts is 190g.

http://m.ebay.co.uk/itm/191458456654?nav=SEARCH

Less than 120 grams. Not the best looking though