Which Groupset?

Brilliant, f**k this incremental stuff just go up 2 more.
1x13 with a 10-36 cassette could be very nice on paper.

It takes out some of the main issues of running 1x. As does 2x.

I like how even Rotor was surprised by the uptake of Uno.

Takes out all the main issues I have with 1x11. They've come out with decent cassettes too - find the SRAM options a bit meh.

It's going to cost £££ though isn't it.

Oh, you want to go for another round then!?!

I've not moved beyond 10-speed SRAM 🤷‍♂️ partly because of compatibility (except my MTB which came with SRAM 1×11)

I relish the opportunity for bodging and compatible groupsets make that more possible :)

I've never seen anyone riding Uno.

I never seen anyone rode Di2 the first year it came out.

I never seen anyone rode Di2 the first year it came out.

I doubt Rotor's groupset(s) will ever be as popular as Shimano's Di2 though, or even SRAM's eTap for that matter.

There was plenty of Di2 in the pro peleton.

I actually google Uno groupset a couple of months ago wondering what happened to it. Was sure they didn't develop it as it wasn't available on the market. Huge surprise - they did. Pricing was a surprise as well.

to clarify; I don’t recall seeing consumers riding with Di2 in the first year it came out.

It could well be like EPS in the future; still being sold but not common to see on the road.

https://www.bikeradar.com/road/news/article/ceramicspeed-driven-drive-shaft-52587/

8th of July is the new 1st of April

99% efficient at 250W? So this saves you 2.5W over Dura Ace? Not worth

How can you make that claim given you have no idea of cost etc.

http://www.chainreactioncycles.com/ceramicspeed-oversized-pulley-wheel-system/rp-prod143294?gs=1&sku=sku601432&pgrid=55375185827&ptaid=pla-426383338683&utm_source=google&utm_term=&utm_campaign=PLA+All+Products&utm_medium=base&utm_content=mkwid|sBY89CoSJ_dc|pcrid|253998738371|pkw||pmt||prd|601432UK

I think we can safely say it is going to be significantly more expensive than Dura Ace if it ever comes to market....

As @JB says it will definitely be more expensive. Also purely on the basis of spare parts and proprietary tools, not worth for 2.5W

99% efficient at 250W? So this saves you 2.5W over Dura Ace? Not worth

I assumed the value of the project currently is in marketing (and some r&d).

I'd hazard a guess this is marketing stuff, but also aimed at the "marginal gains" end of the sector.

Given most of your component choices are based on being a cheapskate luddite...

Gcn tech video tonight covers that ceramic cheese grater thing.

Lol, #burn

I wouldn't describe myself as a luddite though, I'm just over-obsessed with practicality and generally performance is secondary to any practical considerations for me. I wouldn't even say I'm naturally a cheapskate, it's just that I earn literally £0 except when I have time to work for Deliveroo, which isn't often these days. So everything I buy is coming out of my meagre savings that are also there to cover rent and food. When I get a real job I'll stop buying the cheapest parts that exist, still probably won't buy that Ceramic Speed stuff though. cool story

So I guess I shouldn't have bothered sticking my beak in as I'm not really the target audience. Still I think it's worth pointing out that the marketing angle of "twice as efficient" actually only means "2.5W better at 250W, and less as power increases"

Does anyone know if r7000/r8000 shifters would work with an XT side swing front mech?

That Ceramic Speed, surely you're stuck with straight block "cassettes"? Number of teeth is proportional to radius (2 π r) and (I assume) the cogs have to be evenly spaced, which means linear increase in teeth. Thus the only options are 11-12-13-...-23, 11-13-15-...-35, 11-14-17-...-47 assuming that you start at 11. Which either means big jumps in top gears or poor climbing options with just one chainring.

On the other hand you could easily have a "triple" or more on the front for very minimal weight gain - even set of 13 cogs if you just replicate the cassette and have shifting mechanisms at both ends. No cross-chaining ever. Increasing from 13 to 15 speeds (at the back) would simply be a matter of replacing the "cassette" as long as the shifter bit can move far enough up the shaft, because the cassette expands radially outwards, not width-ways (necessitating more space on the freehub), so you'd never have to replace a wheel to upgrade your gearing.

You could have 11-23 at the back and something like 23-33-43-53 at the front, with all combinations usable for 52 speed. Now that would be amazing.

Alternatively you could go old-school and have a 11-35 cassette and closely-spaced/half-step chainrings (e.g. 47 + 50) for a fairly decent road range.

Now I'm excited about it. Make me a #cheapskate version with like 5×10 speeds and 700% range and I'm sold - I'd never buy another groupset again, in fact

Edit: no one else find this interesting?!

just catching up with some chat about sub compact ratios and power meters from @hippy and @amey a few pages back

obviously it'd be a big investment but the Easton Cinch and gravel chainrings would allow a 47/32 or even 46/30 if you wanted.

I'm loving 46/30 with triple crankset. Most of the time I'm effectively 1× with 46t 11-36 and the chainline is just right with the middle ring. .

You can get a triple crankset really cheap, which often come with 30t, then I just bought a Stronglight chainring for <£20