Cannondale SuperSubFive (kg) Hill Climb Machine

Not @borek 's bike

Beer and ketchup on a thurs night. You are not taking this seriously.

Are you 10 or 11 speed? If 10 speed: All Ally cassette. 11-25. 100g. I have one. surprisingly hard wearing too.
http://www.ebay.com.au/itm/SeqLite-Shimano-Ultegra-Dura-Ace-10-Speed-Compatible-Alloy-Road-Cassette/162590324911?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D20140106155344%26meid%3Db808821d426c4806a672fdacb7bd81d0%26pid%3D100005%26rk%3D3%26rkt%3D6%26sd%3D161189025713

The monastic life doesn't start until September. I even sent Al out for some chips!

I did come across those somewhere too. Got a SRAM Red 11sp cassette for good money. It's 180ish grams which is the lightest of the big manufacturers I think.

That's my light bike. 5.4kg there, but I've probably got 200g worth of savings to be made in cranks and chain. I won't be riding a huge amount of hill climbs this year but hope to make it to Catford!

Looking forward to seeing this build develop. Tadros's fixed wheel supersix from last years national was mind blowingly light.

it was a supersonic tube that let me down on the way to my last hillclimb ;)

Freaky-light SRAM cassette. It's odd to pick up.

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Rad!

I don't know anything about hillclimbing, but why do you need so many cogs? Can't you get rid of a few?

I used the full range last year. For the sake of 10g I'd rather have the right gear. Also, the only removable sprocket on that cassette is the 11.

The other option is go all the way and ride fixed. The fear of choosing the wrong gear and the fact that modern road components make geared bikes almost as light as fixed wheel are the main factors in my decision.

these are like £1 per gram amiright?

I don't know anything about hillclimbing, but why do you need so many cogs? Can't you get rid of a few?

I might be wrong, but I think with SRAM Red cassettes the whole block is machined from one piece. Powerdome or something?

The cassette? £270 new, but I got it new on eBay for £100 cause it had a slightly tatty box.

Cool.

I was thinking you could remove most of the larger cogs and just have the smaller ones, and a small front ring (with a longer hi-lo screw on the derailleur to limit range), but I guess that would be stupid.

They echo like nothing else

So, who wants £50 to strip my frame then?

A friend of mine did similar for the national last year. For the vast majority of hill climbs I cant see anybody needing a full range 10 or 11 sprockets...

In a single race, no but across a season? Would you use the same gear for Burrington or Porlock Vs Catford?

Last year For Burrington I ran 38/16, and for Bank road 39/19, considering those are pretty much the extremes of hill climb courses I would imagine that a 6 speed setup with a 15, 16, 17, 19, 21, and 23 sprocket would probably work quite well for almost everything, with maybe the odd change of chainring?

you certainly don't need the range from 11-25 on a hillc limb bike anyway, not unless its a course with a downhill in it or something, and then I wouldn't ride it.

False economy though innit. I doubt you'd find a six speed block that weighs less than 167g, and the lightest modern cassettes are normally one or two pieces so sprockets can't be removed.

Postie's been. Seatpost will probably end up about half that length. Sub 100g...?

Do I need some kind of wavy washer shit for the BB30 cranks?

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Also, seems like those cranks are about 100g heavier than I was expecting :/

483 is pretty light already no?

I was expecting around the 400g mark. The FSA cranks I missed out on were 407g. Weight Weenies suggested these would be less than 400g. Bit annoying.