Can I build a 56cm aero road bike under 6.5kg for 9kusd?

[theyoungconnoisseur]

None of the bikes I want to buy are available and ive never built a bike before. I would like something for sure under 14lbs without pedals.

I want an aero bike like the canyon aeroad style with 35mm front and 40-45mm rear tubeless aero wheels, 175mm cranks, 42cm wide bars.

Dont really care if electronic or mechanical groupset but would like hydraulic disc brakes.

Any advise?

[wltz]

S-Works SL7 in 56 can be built to 6.5 without pedals if you go for it. Complete bike in this size comes in at 7.14kg with cages, pedals, PM and computer mount. I'm sure you can find 350g worth of savings. I'd say other frames like Ostro, Filante etc could do the job just as well.

[RDY]

If you want light and aero you're far better off with deeper wheels and a lighter frame. 35-45mm rims aren't really 'aero'.

Anyway, to answer the titular question, you can do it for $3k. I'd advise spending considerably less than $9k when it sounds like you're a bit confused about what you want.

[BigBoyND]

Totally doable of you're willing to get a few parts used or last-gen. I'm building a 58 Venge for around that money (used frame) and it's on track for 14.7lbs without pedals. That's cost would be with R9200, 1565g 65mm wheels, and no exotic parts. With something like a Rapide/404FC/AR56 wheelset and size 56 frame it should be close to 14lbs while being a full fledged aero bike. Few exotics (seat, cockpit?) And you'd be under 14lbs.

[CAAD8FRED]

Totally doable of you're willing to get a few parts used or last-gen. I'm building a 58 Venge for around that money (used frame) and it's on track for 14.7lbs without pedals. That's cost would be with R9200, 1565g 65mm wheels, and no exotic parts. With something like a Rapide/404FC/AR56 wheelset and size 56 frame it should be close to 14lbs while being a full fledged aero bike. Few exotics (seat, cockpit?) And you'd be under 14lbs.

Please post photos when you're down

[BigBoyND]

Will do. Got most of the parts in but some important ones are still on the way (BB, wheels) or to be purchased (cockpit, groupset) before I can even begin the assembly. Will likely post up a build thread once I'm finished.

Current estimate is 6.83kg with pedals, but without cages or computer mount. Everything that arrived has been weighed. For missing parts I'm using claimed weights and the spreadsheet includes everything except carbon paste, retaining compound, and assembly grease (which I will weigh), but those shouldn't add more than 10g. Some of my estimated weights are conservative so it might come out slightly lighter. Imo, 6.8kg would be really good for a 58cm aero bike with 2x12 and 65mm deep 30mm wide clinchers before buying any parts from THM, Darimo, Alpitude, et.al. Could've saved another 200g with LB AR56 but 65mm is my minimum for a bike this size

[theyoungconnoisseur]

hmmm, some good info so far.
I do want the shallow front wheel as I ride in Florida on the ocean and there is always wind. I had a set of 50's on my last bike and youd spend the ENTIRE ride fighting to keep the bike straight.

[Ronin416]

None of the bikes I want to buy are available and ive never built a bike before. I would like something for sure under 14lbs without pedals.

I want an aero bike like the canyon aeroad style with 35mm front and 40-45mm rear tubeless aero wheels, 175mm cranks, 42cm wide bars.

Dont really care if electronic or mechanical groupset but would like hydraulic disc brakes.

Any advise?

If you’re not stuck on late model aero bikes. A rim brake Canyon Aeroroad numbers are still competitive in the wind tunnel and wheels sets for rim brake are all lighter.


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[RDY]

hmmm, some good info so far.
I do want the shallow front wheel as I ride in Florida on the ocean and there is always wind. I had a set of 50's on my last bike and youd spend the ENTIRE ride fighting to keep the bike straight.

What were the wheels and how light are you? Also if you're on the Floridian coast, weight is basically just a number.

[eurostar]

Might as well go 1x. No hills. Also no need for a light bike. Spend 2k on it and buy a boat with the rest.

[pmprego]

Just buy a regular bike under the weight desired sized 54 invest $1k on very frequent yoga/pilates/physio classes/sessions and you become more aero than ever before.

[spartacus]

I'm not sure how much it weighs but if you can find a last gen aeroad rim brake frame, they're supposed to be really nice bikes. I guess I agree with others though, that setting an arbitrary weight goal may only lead to wasted money or compromises in functionality or durability with no performance gain.

[IchDien]

As others have mentioned if it is Florida then not too sure why you're interested in either weight or discs.

[Ronin416]

Just buy a regular bike under the weight desired sized 54 invest $1k on very frequent yoga/pilates/physio classes/sessions and you become more aero than ever before.

Snug fitting clothing, aero helmet and properly sized tires are all good things you can do that cost you less to help out with aero. Unless you’re climbing 10% grades, a light aero bike will or light will do very little to help you overall than a very aero heavy bike. AERO wins 95% of the time over weight.


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[Mocs123]

Just buy a regular bike under the weight desired sized 54 invest $1k on very frequent yoga/pilates/physio classes/sessions and you become more aero than ever before.

Snug fitting clothing, aero helmet and properly sized tires are all good things you can do that cost you less to help out with aero. Unless you’re climbing 10% grades, a light aero bike will or light will do very little to help you overall than a very aero heavy bike. AERO wins 95% of the time over weight.


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That's probably perticularly true in Florida where the highest point in the state is 345ft (105m) above sea level. Not a lot of climbing there.