Dura-Ace R9200

[Ritxis]

IIRC even shimanos patents for "electronic braking" show a hydraulic link between lever and caliper.
So the electronics is more likely to be for monitoring, modulation and possibly ebike integration. Not full brake by wire. Barely even servo assisted.

That is, who would notice wireless brakes? not to mention the weight

[StevieB]

IIRC even shimanos patents for "electronic braking" show a hydraulic link between lever and caliper.
So the electronics is more likely to be for monitoring, modulation and possibly ebike integration. Not full brake by wire. Barely even servo assisted.

ABS! That's what the braking electronics will be for. ABS is already here for ebikes, and it's coming for regular road bikes; just a matter of time. You have most of the needed hardware in place on Di2/Disc bikes already. Microscopic chance at most to see it this gen, since I think the braking focus has been on reducing the remaining drawbacks of road discs. But before long...

[Butcher]

Until UCI reduces the legal weigh limit, is there a 'real' reason why any manufacturer would focus on that?

If they reduced the weight by 1lb, that would not be even a challenge for manufactures to accomplish.

[jlok]

Until UCI reduces the legal weigh limit, is there a 'real' reason why any manufacturer would focus on that?

If they reduced the weight by 1lb, that would not be even a challenge for manufactures to accomplish.

Disc brake has just reset the weight reduction game to 8kg+. UCI and the industry don't need to lower the weight limit just yet.

[ullmanz]

Until UCI reduces the legal weigh limit, is there a 'real' reason why any manufacturer would focus on that?

If they reduced the weight by 1lb, that would not be even a challenge for manufactures to accomplish.

Disc brake has just reset the weight reduction game to 8kg+. UCI and the industry don't need to lower the weight limit just yet.

Top end road bikes are still right at the UCI mark even with disc brakes, aren't they?

[openwheelracing]

I see these race bikes weighing nearly 8kg. Lots of videos showing bikes in the Peloton on YouTube

[bikewithnoname]

S-works tarmac with discs and DA di2 will squeak under 6.8kg (without pedals though depending on your frame size)

[openwheelracing]

GCN shows Peter Sagan's SL7 at 7.29kg. Not bad. I remember seeing WVA's new Cervelo in the high 7s.

[bikewithnoname]

Yeah, pedals, cages, computer mount, timing chips, race numbers, power meters all add up.

[jlok]

Until UCI reduces the legal weigh limit, is there a 'real' reason why any manufacturer would focus on that?

If they reduced the weight by 1lb, that would not be even a challenge for manufactures to accomplish.

Disc brake has just reset the weight reduction game to 8kg+. UCI and the industry don't need to lower the weight limit just yet.

Top end road bikes are still right at the UCI mark even with disc brakes, aren't they?

Yeah, top end. I think we can build a 7kg rim brake with Ultegra easily?

If I were the marketing guys I'd tone down the weight advantage for now (SRAM is so successful here) and focus on other bullet points. When there is no more card to play, release super doper light weight disc brake blablabla.

Don't get me wrong. I have a single disc brake bike and love it. I just can't swallow the marketing bs of UCI-bike brands conglomerates.

[Butcher]

This thread changes regularly but there is no incentive to get the bike weight down because of the rule.

I'm willing to say if it was a 6kg limit, the manufacturers would design things lighter. Since there is no incentive, why invest the resources? Look what Specialized did with the Aethos. Look what other manufacturers could do. Lots of untapped ideas because of the rule.

[tjvirden]

I think you're underestimating the cost of making lighter parts that perform at least as well in all other ways. It can be done, but there's a financial tag attached. Not too many people spend 15 or 20 thousand $ on one bike.

Many modern Dura Ace / Record components are heavier now than 30 years ago, but who would exchange the functionality?

Edit: many is pushing it: some is more accurate

[Lina]

The weight rule has also driven a ton of aerodynamic innovation. If there wasn't a weight limit we'd all be riding round tube bikes because weight would be number one selling point.

[tjvirden]

Yes, just like Eddy Merckx's "Hour" Colnago special: 5.5Kg but that wasn't relevant!

[Cemicar]

Besides the 6.8kg rule, UCI actually forced the industry not to overly pursue aerodynamics in 2000... if it were not for the rule, today's racing bikes would be in completely different shapes yet far much faster.